Push & Pull are Forces A force is a push or a pull. PUSH is an action of moving an object away. PULL is an action of bringing an object towards us. pressing an iron squeezing a sponge kicking a ball stepping on a scale hitting a nail poking a hole in the donut cycling stretching a spring dragging a suitcase raising a flag drawing back an arrow on a bow pulling a nail opening a door opening a can of soda Push & Pull sawing a wood rowing a boat playing a violin scrubbing the floor playing a yoyo wringing a wet table cloth inflating a bicycle tyre
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Push & Pull are Forces
A force is a
push or a pull.
PUSH is an action
of moving an
object away.
PULL is an action
of bringing an
object towards us.
pressing an
iron
squeezing
a sponge
kicking a
ball
stepping
on a scale
hitting a
nail
poking a
hole in the
donut
cycling
stretching a
spring
dragging a
suitcase
raising a
flag
drawing
back an
arrow on a
bow
pulling a
nail
opening a
door
opening a
can of soda
Push &
Pull
sawing a
wood
rowing a
boat
playing a
violin
scrubbing
the floor
playing a
yoyo
wringing a
wet table
cloth
inflating a
bicycle tyre
Effects of a Force
a force
cannot be
seen but their
effects can be
observed or
felt
can change
the shape of
an object
can change
the motion of
an object
A lump of dough is pressed.
The dough is flattened.
An empty aluminium tin is
crushed. The tin is
crumpled.
A spring is stretched. The
spring extended.
A sugar cane is squeezed
through the rollers. The
sugar cane is flattened.
a force changes
shape of an
object
A Force Changes Motion of an Object
move
a stationary
object
stop
a moving
object
change the
direction of a
moving object
make an object
moves slower
(decelerate an
object)
make an object
moves faster
(accelerate an
object)
The golfer hits the
stationary golf ball.
The golf ball starts to
move.
The hockey player
uses his hockey stick
to stop the ball. The
hockey ball stops
moving.
The player hits at an
angle to the moving
volleyball. The
direction of the
volleyball changes.
An unsporting player
pulls the shirt of his
opponent. This slows
down the movement
of his opponent.
The player pushes the
skateboard with his
foot. This makes the
board move faster.
Friction in Action
Different type of surfaces, produce different amount of friction.