Physics p2 Trial Spm 2007(Kedah)

8/10/2019 Physics p2 Trial Spm 2007(Kedah)

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Se)*+, A

*#' marks+

1 iagram 1.1 shows the distan,e-time graph or the motion o a runner who is running

along a straight line.

/a0 Based on iagram 1.1 what is the distan,e traelled y the runner ater 1' s

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*1 mark+

/0 6hat physi,al 7uantity is gien y the gradient o the graph in iagram 1.1

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*1 mark+

/,0 es,rie the motion o the runner

/i0 rom ! to B

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*1 mark+

/ii0 rom B to (

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*1 mark+

3

s8 m

t8 s'


4/14

2 iagram 2.1 shows initial reading o a stopwat,h at eginning o an e9periment. The

stopwat,h was used to measure time or 2' ,omplete os,illations made y a simple

pendulum o length l.

iagram 2.2 shows the reading o the stopwat,h at the end o the e9periment.

:!;

/a0 /i0 State the type o error shown in iagram 2.1.

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*1 mark+

/ii0 6hat is the a,tual time taken or the pendulum to ,omplete 2' os,illations

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*1 mark+

/0 /i0 =ind the period o +,e,omplete os,illation T or this pendulum.

*1 mark+

/ii0 The relationship etween the length l,and the period T,o a simple

pendulum is gien y the e7uation

2

24

Tg

l

= .Using the alue o Totained in /0/i0 ,al,ulate length l,o pendulum.

* ;ien that > ? 3.142 andg? 1' m s-2+

*2 marks+

4


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3 iagram 3.1 shows a mirror at the ,orner o a shop.

:!;

/a0 @ame the type o mirror shown in iagram 3.1.

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*1 mark+

/0 @ame two ,hara,teristi, o the image ormed y the mirror.

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*1 mark+

/,0 Sket,h a ray diagram to show how the image is ormed.

*3 marks+

/d0 6hat is the adantage o using this type o mirror in the shop

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*1 mark+

"

Mirror


6/14

4 iagram 4.1 shows the use o a transistor in a ,ir,uit.

:!;

/a0 @ame the type o transistor used.

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*1 mark+

/0 The transistor is swit,hed on when the ase oltage V2 A 2 .

/i0 6rite an e7uation to show the relationship etweenIBI(andIC.

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*1 mark+

/ii0 (al,ulate the minimum alue o2when the transistor is swit,hed on.

*2 marks+

/,0 The resistor2is then repla,ed with a light dependent resistor whi,h has a high

resistan,e when it is dark.

/i0 C9plain whether the ul will light up during the day.

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*2 marks+

/ii0 Besides eing used as a swit,h state one other use o a transistor.

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*1 mark+

#

Bul

I(

IB

IC

#

1? 1"'' D

2 V2


7/14

5 iagram ".1 and iagram ".2 show two eggs released rom the same height and drop on

to Sura,e ! and Sura,e B respe,tiely.

/a0 6hat is meant y *%."e

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*1 mark+

/0 6ith reeren,e to iagram ".1 and iagram ".2E

/i0 (ompare the or,e on the eggs that strike Sura,e ! and Sura,e B.

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*1 mark+

/ii0 (ompare the time o impa,t o the eggs on Sura,e ! and Sura,e B.

.....................55555555555555555555555555..

*1 mark+

/iii0 (ompare the ,hange in momentum o the eggs in oth situations.

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*1 mark+

/i0 State relationship etween or,e produ,ed in a ,ollision and the time o impa,t.

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*1 mark+

/0 Suggest a suitale material or Sura,e !.

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*1 mark+

/,0 iagram ".3 shows a pile hammer used in driing a pile into ground at a ,onstru,tion site.

C9plain how a large or,e is produ,ed y pile hammer in driing pile into the ground.

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*2 marks+

$

Sura,e !8iagram ".1

Cgg

Sura,e B8iagram ".2

Cgg

Breaksoes not reak


8/14

& iagram #.1 and iagram #.2 show that a ,urrent is indu,ed in a solenoid when there is

relatie motion etween the solenoid and the ar magnet.

:!;


9/14

' iagram $.1 shows two ,ups o ,oee o e7ual mass eing ,ooled y adding a ew pie,es

o i,e ,ues.

(up ! :!;

:nitially ea,h ,up ,ontains '." kg o ,oee at $"." o(. :t is osered that oth ,ups o

,oee rea,h a inal temperature o 2" o( at the same time.

/a0 6hat is meant y "e)**) !e, e! + ."*+,

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*1 mark+/0 /i0 6hi,h ,up o ,oee re7uires more i,e

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*1 mark+

/ii0 C9plain your answer in /0/i0.

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*2 marks+

/,0 (al,ulate the heat released when the ,oee is ,ooled down to 2" o(.*Spe,ii, heat ,apa,ity o ,oee ? 4"'' ) kgI1o(I1+

*2 marks+

/d0 /i0 (al,ulate the mass o i,e needed to ,ool the ,oee in ,up ! to 2" o(.

*Spe,ii, heat ,apa,ity o water ? 42'' ) kgI1 o(I1

spe,ii, latent heat o usion o i,e ? 3.3# 9 1'"

) kgI1

+

*3 marks+

/ii0 State one assumption whi,h you made in your ,al,ulation in /d0/i0.

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*1 mark+

&

:,e :,e


10/14

( iagram %.1 shows positions o two poli,emen ! and B standing ehind two tall

uildings. The poli,emen are holding a walkie-talkie ea,h. Two uildings are 4 m apart.

:!;

re.e,)*e"

"' MJ "'' MJ " ;J

/,0 (al,ulate the waelengths o ea,h o the radio waes suggested y assuming the

speed o radio waes in air is 3.' 9 1'%m sI1.

*4 marks+

/d0 Based on your answer in /,0 whi,h is the most suitale radio re7uen,y to e used y

the poli,emen. C9plain your answer.

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*2 marks+

/e0 @ame one type o ele,tromagneti, wae whi,h is suitale or satellite

,ommuni,ation. ;ie a reason or your answer.

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1'

Poli,eman !

Poli,eman B

4 m

Tall uilding


11/14

Se)*+, B*2' marks+

!nswer any +,e)uestion%

iagram &.1 and iagram &.2 show how water spurts out rom its ,ontainer when the

ale is opened.

:!;

6hen a li7uid is held in a ,ontainer it e9erts pressure on the ,ontainer.

/a0 6hat is meant y re"".re *1 mark+

/0 6ith reeren,e to iagram &.1 and iagram &.2 ,ompare the depth o the water in

oth ,ontainers the rate at whi,h water spurts out and the distan,e traelled y the

water that spurts out.


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10 iagram 1'.1 and iagram 1'.2 show the a,tiities o two radioa,tie sour,es ! and B.

are ale to release energy *4 marks+

/d0 iagram 1'.3 shows an underground water pipe whi,h has a leak.

/i0 C9plain how a radioa,tie sustan,e ,an e used to dete,t lo,ation o leakage.

*2 marks+

/ii0 :n using a radioa,tie sustan,e to dete,t the leakage suggest how the

sustan,e should e ,hosen y ,onsidering the ollowing aspe,tsL

- the hal-lie o the sustan,e

- the types o radiation emitted y the sustan,e

- the type o dete,tor to e used

- the suitale type o isotope to e used and state its other un,tion

12

Time 8 h'

" 1' 1" 2'

3''

#''

&''

12''

!,tiity 8 sI1

Time 8 s'

1'' 2'' 3'' 4''

2''

4''

#''

%''

!,tiity 8 sI1

Fo,ation o leakage6ater pipe

1 m


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*% marks+

Se)*+, C*2' marks+

!nswer any +,e)uestion

11 /a0 Tale 11.1 shows " materials whi,h ,an e used to make an opti,al ire.Material /i0 (ompare the sie o the ,oin in iagram 11.1 and iagram 11.2 as seen y anoserer aoe the ,up.

State the phenomenon that ,aused the dieren,e in sie o the ,oin in seen in

iagram 11.1 and iagram 11.2. *2 marks+

/ii0 The depth o water in iagram 11.2 is 1# ,m. (al,ulate the apparent depth o

the ,oin when iewed dire,tly rom aoe y the oserer.

*


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12 /a0 /i0 raw a diagram to show how 3 resistors ,an e ,onne,ted in series.

*1 mark+

/ii0 C9plain the adantages o ,onne,ting household applian,es in parallel.

*4 marks+

/0 ! student plans to i9 a lamp in his room. Tale 12.1 shows the eatures o 4 dierent

types o lamps.

Type o lamp Power Ci,ien,y Fie Span Pri,e

(ompa,t luores,ent lamp 1% 6 "' $''' hours Jigh

=ilament lamp $" 6 12 1''' hours Fow

Fong luores,ent lamp 2' 6 4" 14''' hours Medium

Physics p2 Trial Spm 2007(Kedah)

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Transcript of Physics p2 Trial Spm 2007(Kedah)