Space HSC Questions (1)

7/24/2019 Space HSC Questions (1)

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Space HSC Questions

2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011

1 D B B B A C A C C C C

2 A A A A D B A C A D B3 A B B D B D B B C A B

4 C B A B D B D A D B C

5 C D B A C D D C C D B

6 B A B B B A D A A B C

7 B A D A A D C C C D C

8 D C C C C A D B C C A

9 B C C A C B C B A C B

10 A B A A B A A A B D D

11 D A B C B A D D B D D

12 D C D B A C A B D B A

13 C C D A A D C A B D A

14 C B D B B C C D C C A

15 D A A B C A A B A B C

16 A B

17 D B

18 C B

19 B D

20 B D


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2002 Question 3


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9.2.1

The table shows the value of the acceleration due to gravity on the surface

of Earth and

on the surface of Mercury.

A person has a weight of 550 N on the surface of Earth.

What would be the persons weight on the surface of Mercury

!A" 5#.$ N

!%" &$' N

!(" 550 N

!)" $*&0 N

2003

9.2.1

Question 1The weight of an astronaut on the Moon is $+# of her weight on Earth.

What is the acceleration due to gravity on the Moon

2003

9.2.1

Question 17 (6 marks)A satellite of mass 150 kg is launched from Earths surface into a uniform circular orbit of radius

75 ! 10"m

!a" (alculate the ,agnitude of the gravitational potential energy Ep of the

satellite. !$ ,ar-"

2011

9.2.1.2.

1

Question 23 (7 marks)A rocket launches a satellite into an orbit #50 km abo$e Earths surface %he &eight of the

satellite is 1'0 k( at launch) and is 1*" k( &hen in orbit

+,adius of Earth - "#.0 km) mass of Earth - 5/7 ! 10*'kg

+a h2 does the &eight of the satellite change3 +1 mark

2007

9.2.1.2.

3

Question 3The gravitational potential energy of a given ,ass is -nown at both Earths

surface and at a /ed distance above Earth.

What (ANNT be deter,ined by co,paring these two values of gravitational


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potential energy

!A" The ,ass of Earth

!%" The speed of rotation of Earth

!(" The escape velocity of a satellite fro, Earth

!)" The wor- done in ,oving between the two points2008

9.2.1.2.

3

Question 17 (5 marks)

%he graph belo& represents the gra$itational potential energ2 +Ep of a mass as it is raised abo$e

Earths surface

+a4rom the graph) &hat is the gra$itational potential energ2 of the mass &hen it is one Earth

radius abo$e Earths surface3 +1 mark

+bse an e6uation to eplain &h2 the graph is a cur$e and not a straight line +1 mark

2009

9.2.1.2.

3

Question 3

A satellite is mo$ed from a geostationar2 orbit to a higher orbit hich

statement about the orbit change is correct3

+A 8uring the mo$e the gra$itational potential energ2 decreases

+9 %he change in gra$itational potential energ2 is independent of the mass of the satellite

+C %he &ork done is the difference bet&een the gra$itational potential energ2 of the higher orbit

and that of the geostationar2 orbit


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+8 %he &ork done is the energ2 re6uired to mo$e the satellite) &hich is in the gra$itational

field) from a $er2 large distance a&a2) to the higher orbit2006

9.2.1.2.

3

9.2.1.2.

1

Question 1

:i$en that G is the uni$ersal gra$itational constant) andg is the magnitude of the acceleration

due to gra$it2) &hich statement is true3

+A %he $alues of G andg depend on location

+9 %he $alues of G andg are independent of location

+C G is the same e$er2&here in the uni$erse) butg is not

+8g is the same e$er2&here in the uni$erse) but G is not2006

9.2.1.2.

3

9.2.1.2.

2


An ob;ect is stationar2 in space and located at a distance 10 000 km from the centre of a

certain planet of &ork needs to be done to mo$e the ob;ect to a

stationar2 point *0 000 km from the centre of the planet

Calculate ho& much more &ork needs to be done to mo$e the ob;ect to a stationar2 point .0)000

km from the centre of the planet

2008

9.2.1.3.

3

Question 1

An ob;ect on Earth has a &eight of '/0( and eperiences an acceleration due to gra$it2 of

/.ms?* @n =ars) this ob;ect &ould eperience an acceleration due to gra$it2 of #7ms?*

@n =ars) &hat &ould be the &eight of this ob;ect3

2010

9.2.1.3.

3

Question 7

%he acceleration due to gra$it2 on the surface of =ercur2 is #" m s*

Ho& much does a *0 kg brick &eigh on Earth and on =ercur23


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2009

9.2.1.3.

3

9.1.12.4

b


(ASA recentl2 landed a space probe on an asteroid found bet&een the orbits of Earth and =ars

%he 500 kg space probe had a &eight of *5 ( &hen it landed on the asteroid

+a hat &ould be the &eight of this space probe on the surface of Earth3 +1 mark

2001

9.2.1.3.

3

9.2.1.2.

1

Question 1

A person has a ,ass of 10.0 -g. What is the weight of the person at the

Earths surface

!A" 10.0 -g

!%" 10.0 N!(" #2# -g

!)" #2# N2001

9.2.1.3.

3

9.2.1.2.

1

9.2.1.1


A #0 kg ob;ect) A) &as fired from a cannon in pro;ectile motion hen the pro;ectile &as at its

maimum height of *5 m) its speed &as *0 m s?1 An identical ob;ect) 9) &as attached to a

mechanical arm and mo$ed at a constant speed of *0 m s?1in a $ertical halfBcircle %he length of

the arm &as *5 m

3gnore air resistance.

!a" (alculate the force acting on ob4ectA at its ,a/i,u, height.

!$ ,ar-"

2002

9.2.2

Question 4

The diagra, shows four positions of a car on a roller coaster ride.


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At which point during this ride would the occupant e/perience ,a/i,u, g

force

!A" P

!%" Q

!(" R

!)" S2002

9.2.2

Question 1

The diagra, shows the tra4ectory of a golf ball.

Which set of arrows shows the direction of the acceleration of the ball at

points P and Q respectively

2002

9.2.2

Question 5

%he table contains information related to t&o planets orbiting a distant star

%he orbital period of the planet 9a can be determined b2 using data selected from this table

hat is the orbital period of the planet 9a3

+A #10 ! 107s

+9 551 ! 107s

+C 1#/ ! 10.s

+8 *'7 ! 10.s2003

9.2.2

Question 2

A satellite ,oves in unifor, circular ,otion around Earth.

The following table shows the sy,bols used in the diagra,s below.


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These diagra,s are NT drawn to scale.

Which diagra, shows the direction of F and v at the position indicated

2002

9.2.2


ules erne describes ho& to launch a

capsule from a cannon to land on the moon %o reach the moon) the capsule must lea$e the

cannon &ith a speed of 10" ! 10'ms1 %he cannon has a length of *15 m) o$er &hich the

capsule can be assumed to accelerate constantl2

+a Calculate the magnitude of the acceleration re6uired to achie$e this speed using this cannon

+* marks

+b ,eferring to 2our ans&er in part +a) eplain &h2 >ules ernes method is unsuitable for

sending a li$ing person to the moon +* marks

2003 Question 4


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9.2.2

Two planets6 7 and 86 travel around a star in the sa,e direction6 in circular

orbits. 9lanet 7 co,pletes one revolution about the star in ti,e T. The radii

of the orbits are in the ratio $:*.

;ow ,any revolutions does planet 8 ,a-e about the star in the sa,e ti,e

T!A" $+2 revolution

!%" $+& revolution

!(" & revolutions

!)" 2 revolutions2003

9.2.2


A student perfor,ed a rst


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!a" >or this trial6 deter,ine the hori=ontal speed of the ball as it left the edge

of the table.

!$ ,ar-"

!b" The e/peri,ent was repeated with the ball leaving the table at di?erent

speeds. @raph the relationship between the range and the hori=ontal speed

at Y. 3dentify on your graph the results fro, the rst trial.

!' ,ar-s"

!c" The apparatus described in this rst


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+c 8iscuss the effect of Earths rotational motion on the launch of this satellite +* marks

2010

9.2.2.1

8.4.3.2.

1

Question 4

A ball &as thro&n up&ard at an angle of '5D


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2004

9.2.2.2.

1

Question 1

The picture shows a ga,e of cric-et.

The picture shows two consecutive shots by the bats,an. %oth balls reach

the sa,e ,a/i,u, height above the ground but ball Q travels twice as far

as ball P. Which of the following is )3>>EENT for balls P and Q


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!A" Ti,e of Bight

!%" 3nitial velocity

!(" @ravitational force

!)" @ravitational acceleration2005

9.2.2.2.

1

Question 1

A ball thrown in the air traces a path as shown below.

Which of the following state,ents is true

!A" The velocity of the ball -eeps changing.

!%" The acceleration of the ball -eeps changing.

!(" The velocity of the ball at the top of its ,otion is =ero.

!)" The acceleration of the ball at the top of its ,otion is =ero.2005

9.2.2.2.

1

Question 5

Napoleon attac-ed Moscow in $2$& with his cannon ring a shot at an

elevation angle of *0C. Napoleon then decided to re a second shot at thesa,e speed but at an elevation angle of 50C.

Which of the following observations would Napoleon e/pect to be true about

the second shot when co,pared with the rst

!A" Donger range

!%" horter range

!(" Donger ti,e of Bight

!)" horter ti,e of Bight

2006

9.2.2.2.

1

Question 4A stone is thro&n horiontall2 from the top of a cliff and falls onto the beach belo& hich

acceleration?time graph best describes the motion of the stone3


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2009

9.2.2.2.

1

Question 4A de$ice launches t&o identical balls + and 2 simultaneousl2 in a horiontal direction from the

same height %he results are sho&n

hich statement correctl2 describes &hat happens3

+A hits the ground before 2 as it is closer to the launch site

+9 2 hits the ground before as it has a higher launch $elocit2

+C and 2 hit the ground simultaneousl2 &ith the same $elocit2

+8 and 2 hit the ground simultaneousl2 &ith different $elocities2010

9.2.2.2.

2

Question 2

hich of the follo&ing best describes :alileos anal2sis of pro;ectile motion3

+A A pro;ectile launched &ith a great enough $elocit2 &ould escape Earths gra$it2

+9 A pro;ectile &ould tra$el in a straight line until it ran out of momentum) then it &ould fall

+C A pro;ectile launched from the e6uator to&ards the east &ith a great enough $elocit2 &ould

orbit Earth

+8 A pro;ectile &ould tra$el in a parabolic path because it has constant horiontal $elocit2 and

constant $ertical acceleration2005

9.2.2.2.

3

Question 3

The initial velocity reFuired by a space probe to 4ust escape the gravitationalpull of a planet is called escape velc!"#. Which of the following Fuantities

does NT a?ect the ,agnitude of the escape velocity


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!A" Mass of the planet

!%" Mass of the space probe

!(" adius of the planet

!)" Gniversal gravitational constant2007

9.2.2.2.6


%he diagram sho&s the position F on Earths surface from &hich a satellite is to be launched

into a geostationar2 orbit

+a @n the diagram) dra& an arro& to sho& the direction of launch from F) and ;ustif2 2our

choice +1 mark2008

9.2.2.2.

7


!a" E/plain the changes in ,o,entu, when a satellite res its propulsion

syste,. !' ,ar-s"

2010

9.2.2.2.

7

9.2.2.2.

7

9.2.2.2.

5


%he mass of a rocket decreases during launch as it burns fuel) as sho&n in the graph %he rocket

engine produces a constant up&ard force on the rocket

+a Ho& does the la& of conser$ation of momentum appl2 to the motion of the rocket3 +* marks

+b h2 do the gBforces on an astronaut in the rocket differ at times t1and t*3 +* marks

2011

9.2.2.2.

7

Question 8A roc-et is launched. 3ts engine produces a constant thrust for the rst $0

seconds and is then switched o?. Which graph best illustrates the g


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9.2.2.2.

5

2001

9.2.2.2.

8

Question 13

A rocket car mo$es on a straight horiontal track Half of the initial mass of the rocket car is

propellant 8uring the run) propellant is consumed at a constant rate and e;ected at a constant

nole $elocit2

hich of the follo&ing best describes the force propelling the rocket car) and the magnitude ofthe acceleration of the rocket car &hile the propellant is being e;ected3

2001

9.2.2.2.

8

8.4.2.2.

6


A roc-et was launched vertically to probe the upper at,osphere. The vertical

velocity of the roc-et as a function of ti,e is shown in the graph.

+a sing either &ords or calculations) compare the acceleration of the rocket at t - *0 s &ith its

acceleration at t - 100 s +* marks

+b Account for the shape of the graph o$er the range of time sho&n +' marks

2004 Question 18 (4 marks)

A car &ith a mass of .00 kg tra$els at a constant speed of 75 ms1on a roundabout so that it


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9.2.2.2.

8

follo&s a circular path &ith a radius of 1" m

A person obser$ing this situation makes the follo&ing statement

G%here is no net force acting on the car because the speed is constant and the friction bet&een the

t2res and the road balances the centripetal force acting on the car

Assess this statement Support 2our ans&er &ith an anal2sis of the horiontal forces acting on

the car) using the numerical data pro$ided abo$e2006

9.2.2.2.

8

Question 2

A mass attached to a length of string is mo$ing in a circular path around a central point) @) on a

flat) horiontal) frictionless table %his is depicted in the diagram belo& %he string breaks as the

mass passes point F

hich line best depicts the subse6uent path of the mass3

+A ine A

+9 ine 9

+C ine C

+8 ine 82008

9.2.2.2.

8

Question 2

hich of these statements best describes the forces acting on a satellite in orbit around Earth3

+A Although gra$it2 has no effect) there is still an out&ard force

+9 %he satellite is kept up b2 an out&ard force that balances the force due to gra$it2

+C :ra$it2 is the onl2 force acting on the satellite and this results in an in&ardacceleration

+8 %he effect of gra$it2 is negligible) the satellite is kept in orbit b2 its momentum andthe net

force on it is ero

2001

9.2.2.2.

8

Question 5

The graph shows the forces e/perienced by an astronaut during a roc-et

launch into a

stable orbit.


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9.2.2.2.

5


19/41

10 probe res a forward


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9.2.2.2.

6

of this satellite

!'

,ar-s"

2005

9.2.2.2.

11

Question 2

h2 &ould a satellite in lo& orbit around Earth e$entuall2 fall to Earth3

+A


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2008

9.2.2.3.

1

Question 3

An aeroplane is fl2ing horiontall2 o$er le$el ground


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2010

9.2.2.3.

1

9.2.2.3.

1

9.2.2.3.

1


An astronaut on the =oon thro&s a stone from the top of a cliff %he stone hits the ground belo&

*10 seconds later %he acceleration due to gra$it2 on the moon is 1" ms?*

+a Calculate the horiontal component of the stones initial $elocit2 Sho& 2our &orking

+1 mark

+b Calculate the $ertical component of the stones initial $elocit2 Sho& 2our &orking

+* marks

+c @n the diagram) sketch the path that the stone &ould follo& if the acceleration due to gra$it2&as higher %he initial $elocit2 is the same +* marks

2011

9.2.2.3.

Question 15

A marble rolls off a 10 m high horiontal table &ith an initial $elocit2 of '0 m s?1


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1 Ho& long &ill it take the marble to hit the floor3

+A 0*0 s

+9 0*5 s

+C 0'5 s

+8 #*0 s2004

9.2.2.3.

1

9.1


A sports magaine commenting on the athletic abilit2 of =ichael >ordan) the famous basketballpla2er saidJ

G9eing an athlete takes more brains than bra&n


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2 +d Calculate the range of the pro;ectile) if it lands le$el &ith its starting position +* marks

2007

9.2.2.3.

2

9.2.2.3.

1

9.2.2.2.

1


A group of students conducted an in$estigation in &hich ball bearings &ere released from$arious points on a ramp %he ball bearings rolled do&n the ramp to the edge of a table at point

P as sho&n %heir ranges &ere measured

The results are shown in the table.

+a Ilot the data from the table and dra& a cur$e of best fit +* marks

+b+i sing 2our graph) predict the range of a ball bearing released from a height of .0cm abo$e

point I +1 mark


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+ii Calculate the horiontal $elocit2 of the ball bearing released from a height of .0 cm abo$e

point I +* marks

2009

9.2.2.3.

2

9.2.2.3.

1

9.1.14.3

b

9.1.14.1

%

9.1.13.1

&

9.1.12.4b


An electron is emitted from a mineral sample) and tra$els through aperture A into a spectrometer

at an angle of "0D &ith a speed of "0 ! 10"msB1

+b %he electron eperiences constant acceleration and e$entuall2 strikes the detector) 8

hat is the time taken for the electron to tra$el from A to 83 +# marks

2001

9.2.2.3.

2

9.2.2.3.

3

9.2.2.3.

2

9.2.2.3.

1

9.2.2.2.

9

9.2.2.2.

2

9.2.2.2.


A #0 kg ob;ect) A) &as fired from a cannon in pro;ectile motion hen the pro;ectile &as at its

maimum height of *5 m) its speed &as *0 m s?1 An identical ob;ect) 9) &as attached to a

mechanical arm and mo$ed at a constant speed of *0 m s?1in a $ertical halfBcircle %he length of

the arm &as *5 m

3gnore air resistance.

!b" (alculate the ti,e it would ta-e ob4ect A to reach the ground fro, its

position of ,a/i,u, height.

!& ,ar-s"

!c" )escribe and co,pare the vertical forces acting on ob4ects A and % at

their ,a/i,u, heights.

!' ,ar-s"


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1

2010

9.2.2.3.

4

9.2.2.2.

8

Question 5

A *00 g mass is s&ung in a horiontal circle as sho&n upiter first obser$ed b2 :alileo in the 2ear

1"10 are called


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9.2.2.2.

10

+9 1J1"

+C 1J#*

+8 1J"'2010

9.2.2.3.

5

9.2.2.2.

10

9.2.2.2.

8


In 2014 the James Webb Space Telescope (JWST) will be placed in orbit around the Sun. Earth and

the JWST will follow the orbits shown, with identical orbital periods. This appears to contradict

Keplers law of periods.

h2 is it possible for the >S% to orbit the Sun &ith the same orbital period as Earth3


28/41

2008

9.2.2.3.5

9.2.2.3.

4


!b" A satellite is propelled fro, rbit $ to rbit & as shown in the diagra,.

Orbit 2 has a radius of 27,000km. What is the satellites speed in this orbit? (3 marks)

(c) The radius of Orbit 2 is four times that of Orbit 1. What is the ratio of the new orbital period to

the original period? (2 marks)

2002

9.2.3

Question 17* (4 marks)

8escribe %@ difficulties associated &ith effecti$e or reliable communications bet&een

satellites and Earth

2002

9.2.3

Question 18* (3 marks)

The graph shows the percentage trans,ission of electro,agnetic radiation

of various wavelengths through the Earths at,osphere.

The Joyager 33 spacecraft trans,its electro,agnetic radiation to Earth at a


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freFuency of &&K5 M;=. Gse the graph to 4ustify the use of this trans,ission

freFuency.

2003

9.2.3

9.2.2

Question 34or a satellite mo$ing in uniform circular motion around Earth) the centripetal force is pro$ided

b2 the gra$itational force %he mass of Earth is =E %he mass of the satellite is =S %he distance

of the satellite from the centre of Earth is d

hich of the follo&ing e6uations should be used to calculate the speed of this satellite3

2009

9.2.3.2.

1

Question 1

A fastBmo$ing space probe passes close to a planet 8uring its ;ourne2) ho& does thegra$itational field of the planet affect the speed and direction of the probe3

2009

9.2.3.2.

3

Question 5

8uring a lunar eclipse) Earth mo$es bet&een the Sun and the =oon

hat happens to the force eerted b2 the Sun on the =oon3+A


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+8 our ti,es the initial force

!)" ne Fuarter the initial force2004

9.2.2.3.

5


ul2 1/"/ the Apollo 11 Command =odule &ith =ichael Collins on board orbited the =oon

&aiting for the Ascent =odule to return from the =oons surface %he mass of the Command

=odule &as //. ! 10#kg) its period &as 11/ minutes) and the radius of its orbit from the

=oons centre &as 1.5 ! 10"metres


31/41

9.2.3.3.

2

9.2.2.3.

5

9.2.2.3.

4

9.2.2.2.

10

+a Assuming the Command =odule &as in circular orbit) calculate

+i the mass of the =oonK +* marks

+ii the magnitude of the orbital $elocit2 of the Command =odule +* marks

+b %he docking of the Ascent =odule &ith the Command =odule resulted in an increase in

mass of the orbiting spacecraft %he spacecraft remained at the same altitude %his docking

procedure made no difference to the orbital speed >ustif2 this statement +* marks

2004

9.2.3.3.

2

9.2.3.2.

2

9.2.1.3.

3

Question 2

%he diagram sho&s t&o planets F and M of mass m and 'm respecti$el2

At the distance d from the centre of planet M the acceleration due to gra$it2 is '0 m s*

hat is the acceleration due to gra$it2 at distance d from the centre of planet F3

+A 10 m s*

+9 *0 m s*

+C *. m s*

+8 '0 m s*

2004

9.2.3.3.

2

9.2.3.2.

3

Question 3

A spaceship at a distance rmetres from the centre of a star eperiences a gra$itational force ofx

ne&tons %he spaceship mo$es a distance rN* to&ards the star

hat is the gra$itational force acting on the spaceship &hen it is at this ne& location3

+AxN* ne&tons

+9xne&tons

+C *xne&tons


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+8 'xne&tons2007

9.2.3.3.

4

9.2.2.2.

8

Question 1

A satellite is in orbit around Earth &ith tangential $elocit2 vas sho&n

Which of the following describes the direction of the centripetal force acting on

the satellite!A" a,e direction as the gravitational force

!%" pposite direction to the gravitational force!(" a,e direction as the tangential velocity

!)" pposite direction to the tangential velocity2009

9.2.4.3.

2

9.2.4.2.

5

9.2.4.2.

4

9.1.12.4

b


!a" Gsing labelled diagra,s6 show how a rst


33/41

Hustify the students conclusion that: The boat can be regarded as an inertial

fra,e of reference.

2002

9.2.4



34/41

2005

9.2.4


The idea of a universal aether was rst proposed to e/plain the trans,ission

of light through space. Michelson and Morley atte,pted to ,easure thespeed of Earth through the aether. Evaluate the i,pact of the result of the

Michelson and Morley e/peri,ent on scientic thin-ing.

2001

9.2.4.2.

11

9.2.4.2.

7

9.2.4.2.

6

9.2.4.2.

5

9.2.4.2.

3

9.2.4.2.

2


;ow does Einsteins Theory of pecial elativity e/plain the result of the

MichelsonIMorley e/peri,ent

2010

9.2.4.2.

3

Question 6

hich statement about the =ichelsonB=orle2 eperiment is correct3

+A


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2004

9.2.4.2.

4

Question 6

A ball is dropped by a person sitting on a vehicle that is accelerating

unifor,ly to the right6 as shown by the arrow.

Which of the following represents the path of the ball6 shown at eFual ti,e

intervals6 observed fro, the fra,e of reference of the vehicle

2007

9.2.4.2.

7


+aHo& has our understanding of time been influenced b2 the disco$er2 of the constanc2 of the

speed of light3 +* marks

2004

9.2.4.2.

9

Question 5

Two spaceships are both travelling at relativistic speeds. paceship %eta

shines a light bea, forward as shown.

What is the speed of the light bea, according to an observer on spaceship

Alpha!A" The speed of the light bea, is eFual to c.

!%" The speed of the light bea, is less than c.

!(" The speed of the light bea, is greater than c.


36/41

!)" More infor,ation is reFuired about the relative speed of the spaceships.2007

9.2.4.2.

9

Question 2

A spaceship sitting on its launch pad is measured to ha$e a length %his spaceship passes an

outer planet at a speed of 0/5c hich obser$ations of the length of the spaceship are correct3

2011

9.2.4.2.

9

Question 9

The diagra, shows a stationary spacecraft ne/t to a building6 as seen by an

observer across the street.

A short ti,e later the spacecraft is observed to be travelling vertically

upwards at 0.2c6 relative to the building.

Which diagra, best represents the appearance of the ,oving spacecraft6 as

seen by the observer

2011

9.2.4.2.

9


(onsider the following thought e/peri,ent. A scientist on board a

spaceship wishes to synchronise two cloc-s. To achieve this6 bea,s of light

fro, a source placed ,idway between the cloc-s activate photocells6 turning

on both cloc-s.


37/41

The scientist observes the synchronisation of the cloc-s as the roc-et Bies

past Earth at 0.K5c. A person on Earth observes that the cloc-s are not

synchronised. Account for these observations.

2006

9.2.4.3.

1

9.2.4.2.

3

Question 3

hat is the main reason &h2 the =ichelsonB=orle2 eperiment is considered important3

+A


38/41

+a h2 does the mass hang &ith the string at an angle to the $ertical3 +* marks

+b %he string then breaks and the mass falls


39/41

2007

9.2.4.3.

5


+b A piece of radioacti$e material of mass *5 kilogram undergoes radioacti$edeca2 Ho& much

energ2 is released if 10 grams of this mass are con$erted to energ2 during the deca2 process3

+* marks

2004

9.2.4.3.

5

Question 4

An ob;ect of rest mass .0 kg mo$es at a speed of 0"c relati$e to an obser$er hat is the

obser$ed mass of the ob;ect3

+A "' kg

+9 100 kg

+C 1*5 kg

+8 1#' kg2001

9.2.4.3.

5

9.2.4.2.

11


Muons are very short


40/41

+c %he distance bet&een the anode and the screen) as measured in the electrons frame of

reference) is 0*' m Calculate this distance as measured in the laborator2 frame of reference

+* marks

2007

9.2.4.3.

5

Question 18 (7 marks)+c A mass is mo$ing in an inertial frame of reference at a $elocit2 vrelati$e to a stationar2

obser$er %he obser$er measures an apparent mass increase of 0#7O Calculate the $alue of vin

ms?1 +# marks

2008

9.2.4.3.

5

Question 5

A spaceship is tra$elling a&a2 from Earth at 1. ! 10.

ms?1

%he time inter$al bet&eenconsecuti$e ticks of a clock on board the spaceship is 050s Each time the clock ticks) a radio

pulse is transmitted back to Earth

hat is the time inter$al bet&een consecuti$e radio pulses as measured on Earth3

+A 0'0s

+9 050s

+C 0"#s

+8 07.s

2009

9.2.4.3.

5

9.1.14.1

%

9.1.13.1

&

9.1.12.4

b

Question 18 (4 marks)%he nearest gala2 to ours is the arge =agellanic Cloud) &ith its centre located 170 ! 10 5light

2ears from Earth Assume 2ou are in a spacecraft tra$elling at a speed of 0/////c to&ard the

arge =agellanic Cloud

+a


41/41

4

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Space HSC Questions (1)