Mid Year Exam Set 3_ Answer

7/26/2019 Mid Year Exam Set 3_ Answer

1/8

PAPER 1 KERTAS 1

PAPER 2 KERTAS 2

1 (a) Temperature 1

(b) 2 oC 1(c) 24 oC 1(d) Mercury 1

4

2 (a) Length 1(b) 0.9 cm 1(c) Vernier caliper ! Micrometer cre" #auge 1(d) $aralla% error 1

4

& (a) Meaure internal diameter Ukur diameter dalaman

1

(b) '0.04 cm 1(c) 4.14cm

4.14'('0.04) 4.1cm11 2

4

4 (a) Voltage 1(b) 0. V 1(c) *ubtract "ith reading o+ ,ero error 1(d) 0.1 V 1 4

-*/

1) 11) C 21) 3 &1) C 41) 2) C 12) C 22) &2) 3 42) &) C 1&) C 2&) C &&) 3 4&) 3

4) 14) 24) 3 &4) 44) C) - 1) 2) C &) - 4) C5) 3 15) C 25) 3 &5) 45) C6) C 16) - 26) 3 &6) 3 46) -) 3 1) 3 2) &) 3 4) C9) C 19) C 29) 3 &9) C 49) C10) 3 20) C &0) C 40) 0) C


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(a) (i)a

v-u

t

=40'020

2 m'2("ith correct unit)

2

(ii) F ma 4000 % 2

000

2

(b) (i) 7ncreae !! More than 10To reduce the preure e%erted on the ground

2

(ii) 7ncreae!! More than 2To reduce the inertia e++ect! (any rele8ant reaon)

2

(c) ''

Momentum o+ a hea8y 8ehicle depend in it peeday to control the direction!! to reduce the damage e++ect!! Toreduce the impuli8e +orce "hen accident occur

2

10

5 (a) /eight i the gra8itational +orce acting on an obect.Berat adalah daya graviti yang bertindak ke atas sesuatu objek. 1(b) /eight!berat mg

100 : 10 1000 2

(c) $aenger are thrut +or"ard "hen the car i uddenly topped.Penumpang akan terhumban ke hadapan bila kereta tiba-tiba berhenti.

1

(d) 7nertiaInersia

1

6 (a) The rate o+ change o+ momentum 1(b) (i) iagram (b) 1(ii) Time o+ impact on ponge greater than on "ood 1

(c) 0.&(1 ; 0)0.2

25.2

1

1

(a) The high acceleration o+ the roc


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9 (a) ate o+ change o+ 8elocity 1(b) >igher ma higher inertia

To accelerate an obect? need to o8ercome the inertia +irtThere+ore? more +orce i need +or hea8ier obect

121 4

(c) 3oth ytem ha the ame total ma*ytem (b) accelerate +ater than ytem (a)3igger ma di++erent? net +orce i bigger

M contant? @ directly proportional to ae"tonA econd la"

111

11 (d)

Modi+ication eaon7ncreae the i,e o+ the body To increae the pace7ncreae the length o+ the"ing

To increae the upthrut

7ncreae the thic


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11 (a) *um o+ t"o or more +orce to produce a ingle +orce 1 1(b) (i) To"ing 3oat 1

@ 1200 Bot Penunda #

@y

@%

1

(ii) @%@ Co 20

1200:0.9&961126.5&

11

(iii) eultant +orce 2 @ Co 20 2 :1126.5&

22.2511

(c) E +riction in "ater i minimumE hip till mo8e +or"ard although the engine topE due to the inertia o+ momentumE hip ha to be to"ed to it location "hen it ha come to acomplete hop

1111 4

(d) -*$CT -*F7#

22

22

2 10

*mall angle $roduce bigger reultant +orce*treamlined educe reitance*teel rod *trong!!able to "ithtand

>igh tenion7nelatic $roduce uni+orm +orce during the

to"ing-rrangement < i choen 3ig angle? *treamlined? *teel od?

7nelatic20

12 (a) (i) 7mpuli8e +orce 1

(ii) 1.2.&.

The ur+ace o+ metal bloc< i hard.The time impact i horterThe impuli8e +orce i bigger

111

(iii) rop on a o+t ur+ace (idea) 1

(b) Characteritic e%planation3ig ma o+ the load $roduce bigger +orce

during impact>igh poition o+ load produce high 8elocity

"hen tri


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(0)(10) 00

(ii) 82 u2= 2g 0 = 2(10)(20) 400

V 20 m'1

11

(iii) @ m8 ; mut

0(0 ; 20)0.

2000

1

120

PAPER 3 KERTAS 3

1 (a) 100.0 g 1

(b) (i) Manipulated 8ariable H area 1(ii) eponding 8ariable H ma! rate o+ e8aporation 1(iii) Contant 8ariable H denity! time ! temperature 1

(c)-! cm2 m!g Im!g

20.0 95.6 &.&&0.0 92.0 .040.0 6. 12.0.0 4.2 1.50.0 6.6 21.&

-ll unit are correct-ll 8alue o+ m are correct(&'4 correct H1 mar


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2 (a) (i) Ma o+ load! m !"eight !" 1 &

(ii) Fcillation period! T! time ta(b) (i) m 20 g? t .0 m &0 g? t 10.0 m 40 g? t 11.0 m 0 g? t 1&.0 m 50 g? t 14.0

2

(ii) T 0.

T 1.0 T 1.1 T 1.& T 1.4

1

(iii) T2 0.54 2

T2 1.00 2

T2 1.21 2

T2 1.59 2

T2 1.95 2

2

(c)m/g T/s T2/s2

20 0. 0.54&0 1.0 1.0040 1.1 1.210 1.& 1.5950 1.4 1.95

2 2

(d) ra" a complete graph o+ T2againt m

1. *ho" T2on the y'a%i and m on the %'a%i2. *tate the unit o+ the 8ariable correctly&. 3oth a%e are mar


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(b) /hen the ma increae? time ! current increae 1(c) (i) To in8etigate the relationhip bet"een the ma and time !

current1

(ii) Manipulated 8ariable H maeponding 8ariable H time ! current@i%ed 8ariable H height

2

(iii) 3attery ! C po"er upply? lotted ma? connecting "ire? 12VC motor? pulley "ith clamp? ammeter ! top "atch? thread.

1

(i8) Motor

$ulley

Thread

lotted maTable

-

1

(8) 1.

2.

&.

20g o+ lotted ma i li+ted by a motor to a height o+ 1 m.The time ta


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increae(c) (i)

(ii)

To in8etigate the relationhip bet"een the ma o+ an obect andit acceleration due to gra8ity? g.MV H the ma o+ the obectV H the acceleration due to gra8ity? g@V H the height

1

11

(iii) $laticine ball o+ di++erent ma? retort tand and clamp? metrerule? tic

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Mid Year Exam Set 3_ Answer