The SI units of mass are:

1. Kilograms

2. Pounds

3. g/cm3

4. Grams

The pull of earth’s gravity on an object equals_____.

1. Mass in kilograms times 9.8 m/s2

2. Mass times the acceleration of the object

3. 9.8 N

4. Density times volume

The kinetic energy of an object is equal to:

1. mv

2. F/A

3. W/t

4. ½ mv2

5. Fd

Which of the following is NOT measured in Joules?

1. Work

2. Kinetic Energy

3. Potential Energy

4. Heat

5. Power

The rate at which work is done is:

1. Power

2. Momentum

3. Kinetic Energy

4. Efficiency

A TV set is pushed a distance of 2 m with a force of 20 N acting in the direction of motion. How

much work did the force do on the TV?

1. 2 J

2. 10 J

3. 20 J

4. 40 J

5. 80 J

Which requires more work: lifting a 50 kg object 2 meters, or lifting a

25 kg object 4 meters?1. The 50 kg object

2. The 25 kg object

3. Both require the same work

A 2 kg mass has 40 J of potential energy relative to the ground. How far

is it above the ground?1. 1 meter

2. 2 meters

3. 3 meters

4. 4 meters

5. None of these

The kinetic energy of a moving object increases from 5.0 J to 12 J. How

much work was done on the object?

1. None

2. 17 J

3. 60 J

4. 7 J

5. 2.4 J

If the speed of an object doubles its kinetic energy:

1. Is cut in half

2. Quadruples

3. Doubles

4. Does not change

A 50 N force acts north on an object that moves 4.0 meters east. The work done by

the force is:1. 200 J

2. 12. 5 J

3. 0.0 J

4. 54 J

A 50 kg skier is moving at 8.0 m/s when they are still 12 meter above the bottom of the

hill. Which of the following is true?1. KE = 1.6 kJ

2. PE = 6.0 kJ

3. Etotal=7.6 kJ

4. All of the above

A 50 kg skier is moving at 8.0 m/s when they are still 12 meter above the bottom of the hill. If friction

and air resistance can be ignored, their kinetic energy at the bottom will be:

1. 1.6 kJ

2. 6.0 kJ

3. 7.6 kJ

4. None of the above

A diver who weighs 500 N steps of a diving board that is 10 meters above the water. The diver hits

the water with a kinetic energy of:

1. 10 J

2. 500 J

3. 510 J

4. 5 kJ

5. > 5 kJ

Which has greater kinetic energy, a car traveling at 30 km/hr or one half as massive traveling at 60

km/hr?

1. The 30 km/hr car

2. The 60 km/hr car

3. Both have the same kinetic energy

To do 35 J of work in 5.0 seconds requires a power of:

1. 7.0 Watts

2. 30 Watts

3. 175 Watts

4. 40 Watts

The energy stored in an ideal spring is given by:

1. U=mgh

2. U=kx

3. U=kx2

4. U=kx2/2

The work done by a force acting parallel to the displacement equals:1. Fd

2. F/d

3. d/F

4. F-d

The work done by a machine divided by the amount of work required to operate it

describes ____.

1. Efficiency

2. Percent error

3. Mechanical Advantage

4. Power

The energy used by a 100 W light bulb in 4 seconds is:

1. 25 J

2. 400 J

3. 96 J

4. 0.04 J

Hooke’s Law:

1. |F| = |kx|

2. |F| = |k/x|

3. |F| = |x/k|

4. |k| = |Fx|

A 3.0 kg object is moving at 4.0 m/s. Its kinetic energy is:

1. 12 J

2. 48 J

3. 24 J

4. 1.33 J

A 4.0 kg object is lifted upward by 2.0 meters. The increase in its gravitational potential energy is:1. 2.0 J

2. 8.0 J

3. 80 J

4. 0.2 J

In a hydraulic system piston A has a larger area than piston B. Which of the following best

describes the relationships of the pressure and force on the two pistons?

1. PA>PB, FA=FB

2. PA<PB, FA>FB

3. PA=PB, FA>FB

4. PA=PB, FA<FB

By applying a pressure over a larger surface hydraulic systems

can multiply a force.1. True

2. False

By applying a pressure over a larger area hydraulic lifts reduce the amount work

required to lift a car.1. True

2. False

Much like simple machines, hydraulic systems can reduce the force you need

to exert but require you to exert that force over a longer distance.

1. True

2. False

A1=50 cm2 A2=450 cm2 F1=750 N P1=? P2=?

1. P1=15 Pa P2=135 Pa

2. P1=150 kPa P2=150 kPa

3. P1=135 kPa P2=15 kPa

4. P1=37.5 kPa P2=337.5 kPa

A1=50 cm2 A2=450 cm2 F1=750 N F2=?

1. 6.75 kN

2. 750 N

3. 15 N

4. 375 N

A rock hangs from a spring scale. The scale reads 5.0 N when the rock is in the air, and 3.0 N when it is submerged in water. What

is the buoyant force acting on the rock?

1. 5.0 N

2. 3.0 N

3. 2.0 N

4. 8.0 N

5. None of these

An object that is partly or entirely immersed in a liquid is buoyed up

by a force that is:1. Equal to its own

weight

2. Equal to the weight of the fluid it displaces.

3. Equal to the density of the fluid it is in.

4. Equal to the volume of the fluid it is in.

A block of styrofoam floats on a lake while a block of lead with equal volume lies

submerged at the bottom of the lake. The

buoyant force is greatest on the:1. Styrofoam

2. Lead

3. Is the same for both

Compared to an empty ship, the same ship loaded with styrofoam

will float:1. Higher in the

water

2. Lower in the water

3. At the same level in the water.

Water pressure is greatest against the _____

1. Top of a submerged object

2. Bottom of a submerged object

3. Sides of a submerged object

4. None of these

What is the buoyant force acting on a 34,000 N ship that is floating in

the ocean?1. Less than 34,000

N

2. 34,000 N

3. More than 34,000 N

4. Depends on the density of the sea water

What is the weight of water which is displaced by a floating 34,000 N

ship?1. Less than 34,000 N

2. 34,000 N

3. More than 34,000 N

4. Depends on the ship’s shape

5. Depends on the density of the seawater

A completely submerged object always displaces an amount of fluid

equal to its own:1. Volume

2. Weight

3. Density

4. Mass

The lowest possible temperature is:

1. Zero degrees Celsius

2. -273 degrees Celsius

3. 4 Kelvins

4. -273 Kelvins

The force per unit area exerted on a surface is:

1. Density

2. Power

3. Buoyancy

4. Pressure

5. Specific Heat

The first law of thermodynamics states that:

1. The internal energy of a system can be increased by doing work or adding heat.

2. The bouyant force equals the weight of fluid displaced.

3. The entropy of the universe is always increasing.

Systems that are left alone tend to move toward a state of:

1. Greater entropy

2. Less entropy

3. No entropy

One hundred Joules of heat is added to a system that performs 60 Joules of work.

The internal energy change of the system is:

1. 0 J

2. 40 J

3. 60 J

4. 100 J

5. None of these

The amount of mass per unit volume describes:

1. Pressure

2. Density

3. Power

4. Weight

5. Heat

If a loaf of bread is compressed, its _____

1. Mass decreases

2. Volume increases

3. Density increases

4. None of these

One kilogram of styrofoam has _____ density than one kilogram of

iron

1. A smaller

2. A greater

3. The same

Which has the greater density, a lake full of water or a cup full of

lake water?

1. The cup full of lake water

2. The lake

3. Both have the same density

A wooden block has a mass of 800 g and a volume of 2 cm3. What is

the block’s density?

1. 800 g/cm3

2. 400 g/cm3

3. 1600 g/cm3

4. 0.4 g/cm3

5. 0.025 cm3/g

If the mass of an object doubled while its volume remained the

same its density would:

1. Halve

2. Double

3. Stay the same

When you touch a cold piece of ice with your finger

1. Energy is transferred from your finger to the ice

2. Cold is transferred from the ice to your finger

3. The total energy of the system increases

Compared to a giant iceberg, a hot cup of coffee has ____.

More

inte

rnal

ener

gy...

Hig

her te

mper

ature

, ...

Nei

ther

of t

hese.

0% 0%0%

0 of 16

1. More internal energy and a higher temperature.

2. Higher temperature, but less internal energy.

3. Neither of these.

Heat energy is measured in units of:

Joule

s

Cal

ories

New

tons

Wat

ts

Both

1 a

nd 2

Both

1 a

nd 4

Both

2 a

nd 3

0% 0% 0% 0%0%0%0%

0 of 16

1. Joules

2. Calories

3. Newtons

4. Watts

5. Both 1 and 2

6. Both 1 and 4

7. Both 2 and 3

When a chocolate bar is cut in half its density is…

Hal

ved

Unch

anged

Doubl

ed

0% 0%0%

0 of 16

1. Halved

2. Unchanged

3. Doubled

A wooden block has a mass of 800 g and a volume of 2 cm3. What is

the block’s weight on Earth?

About

8,0

00 N

About

0.8

kg

About

400

N

About

160

0 N

About

8.0

N

0% 0% 0%0%0%

0 of 16

1. About 8,000 N

2. About 0.8 kg

3. About 400 N

4. About 1600 N

5. About 8.0 N

One liter of water has a mass of:

1 k

g 1

N

Both

of t

hese

Nei

ther

of t

hese

0% 0%0%0%

0 of 16

1. 1 kg

2. 1 N

3. Both of these

4. Neither of these

A unit that equals 1 N/m2 is the:

Wat

t

Cal

orie

Joule

Pas

cal

0% 0%0%0%

1. Watt

2. Calorie

3. Joule

4. Pascal

0 of 16

A substance can absorb heat energy by the process of:

Condu

ctio

n

Conve

ctio

n

Rad

iatio

n

All

of thes

e

0% 0%0%0%

0 of 16

1. Conduction

2. Convection

3. Radiation

4. All of these

The relationship between heat energy and temperature change is

given by the formula:

Q=m

cDT

DL=a

LoDT

PV=n

RT

P=W

/t

0% 0%0%0%

0 of 16

1. Q=mcDT

2. DL=aLoDT

3. PV=nRT

4. P=W/t

If the volume of an object were to double while its mass stays the

same, its density would:

Hal

ve

Doubl

e

Sta

y th

e sa

me

0% 0%0%

0 of 16

1. Halve

2. Double

3. Stay the same

The air in this room has:

Mas

s

Wei

ght

Ener

gy

All

of thes

e

None

of the

se

0% 0% 0%0%0%

0 of 16

1. Mass

2. Weight

3. Energy

4. All of these

5. None of these

10

A suction cup sticks to a wall. It is ____.

Pulle

d to

the

wall b

y ...

Push

ed to

the

wal

l by.

..

Both

of t

hese

Nei

ther

of t

hese

0% 0%0%0%

0 of 16

1. Pulled to the wall by the vacuum

2. Pushed to the wall by the atmosphere

3. Both of these

4. Neither of these

10

Units of Hertz (Hz) describe the:

Num

ber o

f sec

onds ...

Num

ber o

f cyc

les

pe...

Num

ber o

f gra

ms

p..

Num

ber o

f met

ers

f...

0% 0%0%0%

0 of 16

1. Number of seconds per cycle

2. Number of cycles per second

3. Number of grams per mL

4. Number of meters from crest to crest

10

Which formula correctly describes the relationship between wave

properties?

l=f/v

T=v/

f v

=lf

v/T

=l

0% 0%0%0%

0 of 16

1. l=f/v

2. T=v/f

3. v=lf4. v/T=l

10

The rate at which waves transmit energy is proportional to their:

Wav

elen

gth

Am

plitude

Am

plitude

squa

red

Per

iod s

quar

ed

0% 0%0%0%

0 of 16

1. Wavelength

2. Amplitude

3. Amplitude squared

4. Period squared

10

A wave makes 30 oscillations in 6.0 seconds. Its period is ___ and its

frequency is ____.

5 s

, 5 H

z

0.2

s, 5

Hz

5 s

, 180

Hz

24

s, 3

6 Hz

5 s

, 0.2

Hz

0% 0% 0%0%0%

0 of 16

1. 5 s, 5 Hz

2. 0.2 s, 5 Hz

3. 5 s, 180 Hz

4. 24 s, 36 Hz

5. 5 s, 0.2 Hz

10

The speed of light in vacuum is:

343

m/s

9.8

m/s

3.0

x 1

08 m

/s

1.0

15 x

105

m/s

0% 0%0%0%

0 of 16

1. 343 m/s

2. 9.8 m/s

3. 3.0 x 108 m/s

4. 1.015 x 105 m/s

10

The index of refraction of a material is equal to:

c/v

c-v v

/c

q1/

q2

0% 0%0%0%

0 of 16

1. c/v

2. c-v

3. v/c

4. 1/ 2q q

10

Which of the following is NOT a way that waves change direction?

Ref

lect

ion

Inte

rfere

nce

Diff

ract

ion

Ref

ract

ion

0% 0%0%0%

0 of 16

1. Reflection

2. Interference

3. Diffraction

4. Refraction

10

The bending of a ray as it crosses an interface and enters a new

medium is:

Ref

ract

ion

Doppl

er e

ffect

Diff

ract

ion

Thin

film

inte

rfere

nce

0% 0%0%0%

0 of 16

1. Refraction

2. Doppler effect

3. Diffraction

4. Thin film interference

10

A white shirt is dyed with a pigment that absorbs blue light. When

viewed in white light the shirt will appear:

Blu

e R

ed

Yel

low

Gre

en

0% 0%0%0%

0 of 16

1. Blue

2. Red

3. Yellow

4. Green

10

The part of the electromagnetic spectrum with the longest

wavelength is:

Vis

ible

light

X-ra

ys

Rad

io W

aves

Infra

red

0% 0%0%0%

0 of 16

1. Visible light

2. X-rays

3. Radio Waves

4. Infrared

10

Sound waves are classified as:

Longi

tudin

al m

echa

nic..

Tra

nsver

se e

lect

rom

...

0%0%

0 of 16

1. Longitudinal mechanical waves

2. Transverse electromagnetic waves

10

For a closed tube, only the ____ harmonics are present.

Eve

n O

dd

Prim

e

All

the

harm

onics

ar..

.

0% 0%0%0%

0 of 16

1. Even

2. Odd

3. Prime

4. All the harmonics are present

10

_____ is when you drive a system at its natural frequency.

Inte

rfere

nce

Bea

ts

Diff

ract

ion

Res

onance

0% 0%0%0%

0 of 16

1. Interference

2. Beats

3. Diffraction

4. Resonance

10

The pitch of a sound is most closely associated with the ____ of

the wave.

Spee

d

Am

plitude

Fre

quency

Med

ium

0% 0%0%0%

0 of 16

1. Speed

2. Amplitude

3. Frequency

4. Medium

10

The speed at which a wave propagates is determined primarily

by:

The

sourc

e

The

proper

ties

of th.

..

The

wav

elen

gth

The

amplit

ude

0% 0%0%0%

0 of 16

1. The source

2. The properties of the medium.

3. The wavelength

4. The amplitude

10

The bending of waves around a barrier is an example of:

Diff

ract

ion

Ref

ract

ion

Inte

rfere

nce

Res

onance

0% 0%0%0%

0 of 16

1. Diffraction

2. Refraction

3. Interference

4. Resonance

10

If red light is added to cyan light the resulting light will be:

Bla

ck

Whi

te

Red

dish

gre

en

Purp

le

0% 0%0%0%

0 of 16

1. Black

2. White

3. Reddish green

4. Purple

10

The color of light is most closely associated with the:

Wav

elen

gth

Am

plitude

Spee

d

Inte

nsity

0% 0%0%0%

0 of 16

1. Wavelength

2. Amplitude

3. Speed

4. Intensity

10

The primary colors of light are:

Red

, Blu

e, a

nd Yel

low

Mag

enta

, Cya

n, and

Y...

Red

, Blu

e, a

nd Gre

en

Whi

te, B

lack

, and G

ray

0% 0%0%0%

0 of 16

1. Red, Blue, and Yellow

2. Magenta, Cyan, and Yellow

3. Red, Blue, and Green

4. White, Black, and Gray

10

The formula that describes the how a ray of light refracts is:

c=lf

f=1/

T

q1=

q2

n1s

inq1=

n2sin

q2

0% 0%0%0%

0 of 16

1. c=lf2. f=1/T

3. q1=q2

4. n1sinq1=n2sinq2

10

A line constructed perpendicular to the interface is called the:

Med

ium

Inci

dent r

ay

Norm

al

Dire

ctrix

0% 0%0%0%

0 of 16

1. Medium

2. Incident ray

3. Normal

4. Directrix

10

When light travels from a material with a large index of refraction into one with a

smaller index of refraction the transmitted ray:

Get

s ben

t towar

d the.

..

Does

not

chan

ge di

re...

Can

’t pos

sibl

y ex

per...

Get

s ben

t aw

ay fr

om t.

.

0% 0%0%0%

0 of 16

1. Gets bent toward the normal

2. Does not change direction

3. Can’t possibly experience total internal reflection

4. Gets bent away from the normal

10

Enter question text...

Ente

r ans

wer

text

...

0%

1. Enter answer text...

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