Pushes and Pulls
Throwing a ball. Push or Pull?
It's a push
What keeps us on the ground?
Gravity
What does friction do?
Causes something to slow down or stop.
What forces cause motion?
Pushes and pulls.
Bringing your book closer to you. Push or Pull?
Pull
How does gravity affect juggling?
The balls that are thrown up keep coming back down.
Why are bowling alley lanes smooth?
The ball will roll faster on a smooth surface.
An object's location is called what?
Position
Two boys playing football are pushing against each other with the same amount of force. What will happen?
The boys won't move because they both have the same force.
What affects how much we weigh. Why?
If a ball is rolling on a bumpy surface, will it roll faster or slower? Why?
The surface causes friction so it will go slower.
What would happen if you pushed a swing really hard?
It would move fast.
Is magnetism a push or a pull?
It's a pull.
Is gravity strongest the further away we are from the ground?
No it gets weaker.
Why is it hard to ride a bike on grass?
The friction makes it harder to go faster.
If you put a lot of force into moving a heavy box, what happens?
The box will move.
Why is magnetism a noncontact force?
It pulls an object and makes it move without touching it.
If we were on the moon, would our weight change? Why?
There's not as much gravity on the moon so we would weigh less.
Is it easier to drive a car on a dirt road or a paved road? Why?
Paved road because it's smooth.
If you are playing tug of war and the rope comes to you, what are those forces called? Why?
Unbalanced. You're applying more force.