What is speed?
Speed is how fast things move.
We push something. What is the effect?
It moves away from us.
What happens when you push a door with a small force?
It opens slowly.
Can a force change the speed of things?
Yes, it can.
What's the effect of the door being pushed with a small force?
The door opens slowly.
Name things that move fast.
A train, a car, a horse, a runner, etc.
Can a force make something move?
Yes, it can.
What causes a small movement?
a small force
Why can we move a toy car with a small force, but need a big force to move a real car?
A toy car is light. A real car is heavy. It is easier to move a light thing than a heavy thing.
What causes a big movement?
a big force
What is a push?
A push is a force that moves something away from you.
What's the cause of the wagon moving?
The girl is pulling the wagon.
We pull something. What is the effect?
It moves towards us.
What happens when you push a door with a big force?
It opens quickly.