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Read ©
Forces
We see things move every day. We see people
walking, birds flying, and leaves falling to the
ground on a windy day. Things move in many ways.
They move up and down, right and left, and over
and under things. Look around your classroom.
What things are moving?
Force
A force makes something
move. A push is a force, and
it moves something away
from you. We push people
on swings. A pull is a force,
too, and it moves something
toward you. We pull things
in wagons. Can you name
something you push and What’s the cause of the wagon moving?
something you pull? What’s the effect of the girl pulling the w agon?
A small force causes a small movement and a big
force causes a big movement. When we use a
small force to throw a ball, it doesn't go far. When
we use a big force to throw the same ball, it goes a
long way.
It is easier to move a light thing than a heavy thing.
We can move a toy car with a small force because
it's light. We need a big force to move a real car
because it's heavy.
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