bE+o~MA-TlON

A force acts on a body.

Which list contains only quantities that can be changed by the force?

A mass, shape, velocity

B mass, shape, volume
C mass, velocity, volume
~hape, velocity, volume

2 A force acts on a body.

Which properties of the body may all be changed by

A mass, shape and size

B mass, shape and velocity
C/mass, size and velocity
J shape, size and velocity

Some students plan to use a~ring to m-'e a spnng balance with a linear scale.
graph shows hcl the ltenJ:{i of their spring changes with the load on it.

Q-6,,111:;;,___ _ _ _ _ _ _ _ _...,..._...,

0 2 4 6 8 10 12 14
load/ N

of a balance with a linear scale using this spring?

C 10 N to 12 N D 10 N to 14 N
4 A force 1s applied to a body.

Whi~ property of the body cannot be changed by tho foroo?

~ i t s mass
B its shape
C its size
D its veloeity

5 The graph shows the extension of a piece of copper wire as the load on rt 1s increased

extension
of wire

load the wirS:es easier to extend.

Clr1talll th ·re omes harder to extend.
lo tly proportional for all loads.
I re ersely proportional for all loads.

an elastic solid as it deforms?

metal wall
on
A spring extends by 6.0 cm when a 15 N weight is suspended from its lower erJd.
Three of these springs are used as shown to support a 90N weight.

y(... · ?-S")\
'JI~ )'1D
) ~b 'i\

90 N

B 12cm ~6cm 11o~m

Ion-load curves for four fibres.

at to stret~£ over the range of loads shown?

load
 An extension-load graph is plotted to show the resuIt o
f .111 c easing th8 load on a spring
9 r

Which point marks the limit of proport1onallty for this spring?

extension

10 A 100 g mass is suspended from a spring next to a vertical metre rule. The top of the spring is
level with the 0.0 cm marl<. The bottom of the spring is level with the 27 .2 cm mark

spring
xy.._
Jo
27.2cm- {-
___,__~ 100 g ::) c; ~g

II re9faced with a 600 g mass. The length of the spring 1s now 89 7 cm. The
MChed the limit of proportionality.
II ....~ t h a 200 g mass. What is the length of the spring?
vJI' 33.4an C 39.7cm D 54.4cm
 i k)t
5),(
');,t. lc.r,,((o'('(I

wire, of Initial length 1000 mm, extends by 4 mm when a load of 2 N is aQded to it.

the length of the wire when a further 3 N 1s added, assuming that the wire does not
1JI.Vond the limit of proportionality?
B 1008mm /101omrn D 1012mm

a length of 9 cm when loaded with a 200 g mass. The exterr-,;1an-mase

3
extension / cm
2

mass/ g

hat is the new length of the spring?

D 10cm

spring changes when a load of 1ON is hung on it. •

What is the new length of the spring?

14cm ~Scm
1-0 Y'.J
),(.

;:) ';)_ 0 - 1£ y<-

- ) 0 (~
14 The extension of a spring is measured as weights are added. The graph shows the results.

Which point is the spring's limit of proportionality?

D
extension

... -.
of the graph shows the limit of pro · !elid?

extension

load

D PQ
A 1Nd L 1s suspended from two springs that are in parallel. The extension of each spring is x

.,. then arranged to hang vertically, one below the o

I extension of the two springs?

C 2x
17 An extension-load graph for a wire is shown .

6 7-+..,..+.,...lr,-IH"T'T"-,_rrr"+-f-+-1'+T+-J:1T,..T.lJ_1-CJ....:r.-:r:o::i:+:r-iPR-=r-+1t=rR-q:]

0--P-..........................+-'-"................~---"':-"'-:-"........'""""1'-~--,
0 20 40 60 80
load IN

What Is tt'J' load at the limit of proportionality for the wire?

A 4N B 15N ~?ON

' 5

f-metre rule balanced at its mid-point.

20cm
I
rule

t )"S bo Ne IY>
, metal block

C 100N D 150N
A lteel spring is stretched by a load. The load is increased.
the extension is proportional to the load . The spring reaches its hmit of proportionality at L.

le the correct graph of t:e extension against load for the spring~

extension '
L

·. \
• I
'·•·'"'
' ,
load

D
C

extension

load
MJring balance is calibrated to give readings in newtons.
IMPh shows how the length of the spring varies with the load.
7

length of 6
spring/an
5

load/ N

ofth~alan~to extend by 3 cm.

C 10N D 15N

5
, extends by 4 mm when a load of 2 N is added to it.

be If a further 3 N is added, assuming it does not extend beyond

1.012m

·i.,_
~10m D

~,-0
k>L -:;J 5 ~(})~
-:/~--: 0- X y jt--:; ,0
;, 0 's -; k-
22 The table shows how the extension of a spring varies with load.
.- Ir
load IN 0 2 4 6 8 10 12 I 14 16
extension / cm 0 6
3 9 12 1
I
Between which two loads would you find the limit of proportionality?
ON and 2N
nd 10N
and 12N

nds by 4 cm when 10 N is suspended from it. TWO- of )hltsesprings are used as

a 30 N load.

30 N

C 8cm ~ 2 cm

•not be changed if a force is applied to it?