Springs

UNIT 5 LOOKING AT SPRINGS SPRING S OBJECTIVE QUESTIONS Choose the correct answers. 1

What does a spring do when you stretch it?

2

I II III

It breaks. It becomes longer. It changes shape.

A B C D

I only I and II I and III II and III

Why put springs in armchairs? A B C D

really

So that chairs look up-to-date So that chairs look soft and cosy So that you can bounce on them So that the cushion changes to your shape and makes you comfortable

Questions 3 and 4 are based on the diagram below.

3

4

 The diagram above shows shows that a spring spring is being A bent B twisted C stretched D squeeed What happens when the boy releases the spring?

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A B C D

 The  The  The  The

spring spring spring spring

breaks into two. becomes longer. become smaller. returns to its original sie.

5

weight

What can you say about the investigation above? A B C D

6

Springs stretch. Springs are made from metal. Springs can be pulled. i/erent springs stretch di/erently.

Which of the following ob0ects uses springs? A

C

B

D

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7 Spring ) which is 1 cm long e2tends to (& cm when an ob0ect is hung on it. Spring $ which is (& cm long e2tends to (.' when an ob0ect is hung on it. What can you say about this investigation? A B C D

8

Springs can be stretched. i/erent springs stretch di/erently. Spring ) is more elastic than spring $. Springs change shape when an ob0ect is hung on them.

Which of the following ob0ects do not use springs? I II III

3andbag Table #echanical pencil

A B C D

II only I and II II and III I4 II and III

9

original shape

after the ob0ect is removed ob0ect

 The diagram above shows the shape of a spring when an ob0ect is hung on it and when an ob0ect is removed. Which statement is true about the shape of springs? A B C D stretched.

Springs become shorter after they are stretched. Springs become smaller after they are stretched. Springs becomes longer after they are stretched. Springs return to their original shape after they are

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Ty! "# $%&'(

O%&(&')* *!'(+,

Spring X 

1 cm

T,! *!'(+, -,!' )' "./!+ 100 ( &$ ,'( "' &+ 5.' cm

Spring Y 

(& cm

(% cm

Spring Z 

(% cm

( cm

 The table above shows the observation of an investigation carried out by a group of pupils. In this investigation4 what factor did they keep the same? A B C D

 Types of spring  The length of spring  The weight of the ob0ect  The length of spring when the ob0ect is hung on it

SUBJECTIVE QUESTIONS

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A

7ook at the pictures below. 8ill in the blanks with the correct answers.Then draw the shape of the spring when it is being bent4 stretched4 twisted and squeeed. 1

) spring is being ;;;;;;;  2

) spring is being ;;;;;;;  3

) spring is being ;;;;;;;  4

) spring is being ;;;;;;;  B  Tick 9√ : the correct statements  1

Springs can be stretched without being broken.

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2

Springs become shorter after they are squeeed.

9

:

3

Springs are made of metal.

9

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4

Springs are used in a drawer.

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5 Spring will return to their original shape after being twisted. 9 :

C 7ook at the table below and then answer the following questions.

Ty! "#  $%&'(

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Spring P

(&.&

T,! *!'(+, -,!' )' "./!+  100 ( &$ ,'( "' &+ (%.' cm

Spring Q

((.&

(%.& cm

Spring R

(%.&

('.& cm

The table above shows the observation of an investigation which was carried out by a group of pupils. 1

3ow much does spring P stretch?  ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 

2

What conclusion can be made from this investigation?  ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 

3

In this investigation4 9a:

what should we keep the same?  ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; 

9b:

what do we want to measure?

 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;  D 7ook at the pictures below. Tick 9 √ : the ob0ects that use springs.

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1

2

3

4

5

6

8

9

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