Simple Machines
What kind of simple machine is a slide?
When we pull something, does it come closer or move further away
Comes closer
Does the color of an object change how gravity works?
No
How does a ramp help you move heavy objects?
You can push them up instead of lifting them
Can non-living things move by themselves?
No, we need to apply force to put them in motion
Which falls faster a paper ball or a piece of paper?
Paper ball
What kind of simple machine is a see-saw?
A lever
Can you see forces?
No, but you can see their effect (you cannot see a push or pull but you can see what happens to the object)
What properties affect how gravity works on an object?
Size, Shape, Weight
What kind of simple machine is a knife?
A wedge
If you push something on ice will it move slowly away or quickly?
What would happen if we didn't have gravity?
We would all float including objects
We would not be able to stand on the ground
What is the point in the middle of a lever called?
Fulcrum
Other than people, what other things can move objects?
Animals
Wind
Water
Gravity
Magnets
Machines
How does air affect gravity's pull on objects?
If the object is heavy, it has less air resistance and so it falls faster.
If the object is light, it has more air resistance and so it falls slower.