module 1(introduction to science)

8/12/2019 Module 1(Introduction to Science)

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MODULE 1: INTRODUCTION TO SCIENCE

SECTION A

1. The information given below shows the steps in a scientific investigation.

The correct sequence of these steps is

A Q, S, R, T, PB S, Q, R, T, P Q, S, P, R, T! S, Q, T, P, R

". Before a scientist ma#es an observation in an investigation, he$she must thin# of howto

A anal%&e the observationB ma#e an inference on the observation present the observation! recor' the observation

(. )igure 1 shows the oscillation of a pen'ulum. The pen'ulum swings from R to T an'bac# to R through S.

)igure 1 *hich of the following shows a complete oscillation+

R S T R S S T S R S R S T S R- T S R S R

A onl% B an' onl% an' onl% ! , , an' -

STF Enrichment Module (PMR)

P /a#ing a conclusionQ /a#ing a smart guessR arr%ing out an investigationS !etermining 0what want to fin' outT nterpreting the 'ata

R

S

T


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2. *hen 34 ml of oil is poure' into an empt% bea#er of mass 1(3 g, the total mass increases to 153 g. *hat is the mass of 1 ml of oil+

A 4.1 gB 4." g 4.6 g

! 4.7 g

3. The mass of an astronaut on the earth is 63 #g. *hat is his mass on the moon+

A 73 #gB 63 #g 33 #g! 4 #g

6. *hich of the following represents the prefi8 value of #ilo+

A 14

B 144 1444! 14 444

5. )igure " shows the time ta#en to complete one oscillation against the length of apen'ulum.

Time ta#en to complete9ne oscillation:s;


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7. )igure ( shows a moving pen'ulum.

)igure (

*hich of the following statements are true about the pen'ulum+

The potential energ% of the pen'ulum is the highest at position =.

The potential energ% of the pen'ulum is the same at position = an' >. The #inetic energ% of the pen'ulum is the highest at position ?.

A an' onl%B an' onl% an' onl%! , an'

@. An e8periment is carrie' out to 'etermine whether the weight of a pen'ulumaffects its swing. *hich of the following variables are correctl% use'+

constant variable length of pen'ulum

manipulate' variable weight of pen'ulum respon'ing variable time of swing of pen'ulum

A , an' B an'

an' ! onl%

14. 344 m are equivalent to

4.3 #m 34 444 cm

344 444 mm

A , an' B an'

an' ! onl%


=

?

>


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SECTION B

1. !iagram 1 shows the apparatus of an e8periment to stu'% the length of a pen'uluman' how it affects the number of swings in a given time.

string

retort stand

pendulum

!iagram 1

The result of this e8periment is shown in Table 1.

Length of pendulum (cm Num!e" of #$%ng# %n 1m%nute

34 2"

(4 32"4 65

Table 1

:a; State the following variables

:i; )i8e' variableCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC:ii; /anipulate' variable CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC

:iii; Respon'ing variableCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCD1 mar#E

:b; State a h%pothesis for this e8periment.CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC

D1 mar#E:c; Pre'ict the number of swings if the length of the pen'ulum is "3 cm. CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC

D1 mar#E:'; S#etch a graph to show the relationship between the length of the pen'ulum an'the number of swings.


Fumber ofswings


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:1 mar#;

!iagram 1.1

(e) !iagram 1.1 above shows a pen'ulum swing. !efine the meaning of one oscillation.

CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC

ED1 mar#E

:f; *hat is the conclusion for this e8periment+

CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCD mar#E

". !iagram " shows the arrangement of apparatus use' to measure the volume of 34 'rops of water .

!iagram "

:a; Fame the apparatus = an' ? in the spaces provi'e' in !iagram ".D " mar#sE

:b; /ar# using arrow, , to show the correct e%e level when ta#ing a rea'ing fromapparatus ?.

D1 mar#E


P

Q

R


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:c; !iagram ".1 shows the changes in the level of water in apparatus ? when 34'rops of water flow out of it.

!iagram ".1

Base' on !iagram ".1, complete the table below

nitial rea'ing :cm(;

)inal rea'ing :cm(;

-olume of 34 'rops of water:cm(;

D( mar#sE

:'; alculate the volume of one 'rop of water.

D" mar#sE


module 1(introduction to science)

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