pushes and pulls - alston publishing · pdf filepushes and pulls name: class: date: t 3 what...

Pushes and Pulls

Name: Class: Date:

Consolidation Worksheet 1What Are Pushes and Pulls? Each of the actions in the box below is a push, a pull, or both! Write each letter in the correct space in the Venn diagram. The first one has been done for you.

A. Dragging a chair B. Rowing a boat C. Pressing a lift button

D. Typing on a computer keyboard E. Sweeping the floor F. Combing your hair

Actions

Push Pull

A

© 2012 Alston Publishing House Pte Ltd Science SMART Teacher’s Guide Grade 3 395

Pushes and Pulls

Name: Class: Date:

Consolidation Worksheet 2What Is a Force? Rita rolls a ball along the ground. An ‘X’ is drawn at the position where the ball stops.

a. If Rita rolls the ball with more force, where would the ball stop?

b. Tom is now standing at position ‘X’. He wants to roll the ball towards Rita. Should Tom exert a force to the left or to the right as shown in the picture?

Left Right

396 © 2012 Alston Publishing House Pte LtdAdditional Teacher’s Resources

Pushes and Pulls

Name: Class: Date:

Consolidation Worksheet 3What Are the Effects of Forces? Below are some statements about the effects of forces. Write ‘True’ or ‘False’ in the box beside each statement.

Statements True/False

i. Forces can be seen.

ii. The effects of a force can be seen and felt.

iii. A push is a force that brings an object nearer to us.

iv. To move an object, a force must be applied.

v. A force can change an object’s speed.

vi. A force cannot change an object’s size.

Pushes and Pulls

Name: Class: Date:

Consolidation Worksheet 2What Is a Force? Rita rolls a ball along the ground. An ‘X’ is drawn at the position where the ball stops.

a. If Rita rolls the ball with more force, where would the ball stop?

b. Tom is now standing at position ‘X’. He wants to roll the ball towards Rita. Should Tom exert a force to the left or to the right as shown in the picture?

Left Right


Pushes and Pulls

Name: Class: Date:

Fun and Games Circle Me Out!

Look at the picture below and observe what Smarty, Min, Ari, Rita and Tom are doing.

a. Circle in blue those applying only a pushing force.

b. Circle in red those applying only a pulling force.

c. Circle in green those applying both a pushing and pulling force.


Pushes and Pulls

Name: Class: Date:

Exam PracticeProcess skills: Observing, Analysing, Inferring

Tom and Ari have two similar plasticine balls. Tom is trying to stretch his plasticine ball, while Ari is trying to flatten his.

a. In the pictures above, draw arrows to show the direction of the forces exerted by Tom and Ari. [2 marks]

b. What types of force are Tom and Ari using?

Tom: [1 mark]

Ari: [1 mark]

c. What can we conclude from this activity about the effect of forces? [2 marks]

Hint:What change have the forces caused to the plasticine balls?

Tom’s plasticine ball Ari’s plasticine ball

Pushes and Pulls

Name: Class: Date:

Fun and Games Circle Me Out!

Look at the picture below and observe what Smarty, Min, Ari, Rita and Tom are doing.

a. Circle in blue those applying only a pushing force.

b. Circle in red those applying only a pulling force.

c. Circle in green those applying both a pushing and pulling force.


Ans

wer

s to

Add

ition

al Te

ache

r’s R

esou

rces

Ans

wer

s to

Add

ition

al Te

ache

r’s R

esou

rces

Pu

shes

an

d P

ull

s

Nam

e:

C

lass

:

Dat

e:

Co

nso

lid

atio

n W

ork

shee

t 1W

ha

t A

re P

ush

es a

nd

Pulls

? Ea

ch o

f the

act

ions

in th

e bo

x be

low

is a

pus

h, a

pul

l, or

bot

h! W

rite

each

lette

r in

the

corr

ect s

pace

in th

e Ve

nn d

iagr

am. T

he fi

rst o

ne h

as

been

don

e fo

r yo

u.

A.

Dra

ggin

g a

chai

r B.

Ro

win

g a

boat

C

. Pr

essin

g a

lift b

utto

n

D.

Typi

ng o

n a

com

pute

r ke

yboa

rd

E.

Swee

ping

the

floor

F.

Com

bing

you

r ha

ir

Act

ions

Push

Pull

A F

C D

B E

Pu

shes

an

d P

ull

s

Nam

e:

C

lass

:

Dat

e:

Co

nso

lid

atio

n W

ork

shee

t 2W

ha

t Is

a F

orc

e?

Rita

rol

ls a

ball

alon

g th

e gr

ound

. An

‘X’ i

s dr

awn

at th

e po

sitio

n w

here

th

e ba

ll st

ops.

a.

If R

ita r

olls

the

ball

with

mor

e fo

rce,

whe

re w

ould

the

ball

stop

?

b.

Tom

is n

ow s

tand

ing

at p

ositi

on ‘X

’. He

wan

ts to

rol

l the

bal

l tow

ards

Ri

ta. S

houl

d To

m e

xert

a fo

rce

to th

e le

ft o

r to

the

right

as

show

n in

th

e pi

ctur

e?

Left

Righ

t

The

ball

wou

ld s

top

afte

r th

e ‘X

’ / o

n th

e rig

ht o

f the

‘X’.

Tom

sho

uld

exer

t a fo

rce

to th

e le

ft.


Ch

ap

ter 6

Ans

wer

s to

Add

ition

al Te

ache

r’s R

esou

rces

Ans

wer

s to

Add

ition

al Te

ache

r’s R

esou

rces

Pu

shes

an

d P

ull

s

Nam

e:

C

lass

:

Dat

e:

Co

nso

lid

atio

n W

ork

shee

t 3W

ha

t A

re t

he

Effe

cts

of

Forc

es?

Belo

w a

re s

ome

stat

emen

ts a

bout

the

effe

cts

of fo

rces

. Writ

e ‘Tr

ue’ o

r ‘Fa

lse’ i

n th

e bo

x be

side

each

sta

tem

ent.

Stat

emen

tsTr

ue/F

alse

i.Fo

rces

can

be

seen

.

ii.Th

e ef

fect

s of

a fo

rce

can

be s

een

and

felt.

iii.A

pus

h is

a fo

rce

that

brin

gs a

n ob

ject

nea

rer

to u

s.

iv.

To m

ove

an o

bjec

t, a

forc

e m

ust b

e ap

plie

d.

v.A

forc

e ca

n ch

ange

an

obje

ct’s

spee

d.

vi.

A fo

rce

cann

ot c

hang

e an

obj

ect’s

size

.

False

False

False

True

True

True

Pu

shes

an

d P

ull

s

Nam

e:

C

lass

:

Dat

e:

Fu

n a

nd

G

ames

Cir

cle

Me

Ou

t!

Look

at t

he p

ictu

re b

elow

and

obs

erve

wha

t Sm

arty

, Min

, Ari,

Rita

and

To

m a

re d

oing

.

a.

Circ

le in

blu

e th

ose

appl

ying

onl

y a

push

ing

forc

e.

b.

Circ

le in

red

thos

e ap

plyi

ng o

nly

a pu

lling

forc

e.

c.

Circ

le in

gre

en th

ose

appl

ying

bot

h a

push

ing

and

pullin

g fo

rce.

(Rita

and

Min

sho

uld

be c

ircle

d in

blu

e.)

(Sm

arty

and

Ari

shou

ld b

e ci

rcle

d in

red

.)

(Tom

sho

uld

be c

ircle

d in

gre

en.)


Push

es a

nd P

ulls

Ans

wer

s to

Add

ition

al Te

ache

r’s R

esou

rces

Pu

shes

an

d P

ull

s

Nam

e:

C

lass

:

Dat

e:

Ex

am P

ract

ice

Pro

cess

sk

ills

: Obs

ervi

ng, A

naly

sing,

Inf

errin

g

Tom

and

Ari

have

two

simila

r pl

astic

ine

balls

. Tom

is tr

ying

to s

tret

ch h

is pl

astic

ine

ball,

whi

le A

ri is

tryi

ng to

flat

ten

his.

a.

In th

e pi

ctur

es a

bove

, dra

w a

rrow

s to

sho

w th

e di

rect

ion

of th

e fo

rces

exe

rted

by

Tom

and

Ari.

[2

mar

ks]

b.

Wha

t typ

es o

f for

ce a

re T

om a

nd A

ri us

ing?

To

m:

[1

mar

k]

A

ri:

[1

mar

k]

c.

Wha

t can

we

conc

lude

from

this

activ

ity

ab

out t

he e

ffect

of f

orce

s?

[2 m

arks

]

Hin

t:W

hat

chan

ge h

ave

the

forc

es

caus

ed t

o th

e pl

astic

ine

balls

?

Tom

’s pl

astic

ine

ball

Ari’

s pl

astic

ine

ball

Pull

Push

Forc

es c

an c

hang

e th

e sh

ape

of a

n

obje

ct.


Ch

ap

ter 6

Glossary

Chapter 6: Pushes and Pulls

Direction The path on which something is moving

Forcemeter An instrument used to measure force

Newton The unit of force

Speed The rate at which something moves

Stationary Not moving


Push

es a

nd P

ulls

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