force and motion

If a ball is rolled down a ramp at 30cm and then at 40cm, the variable would be

• distance

• balance

• friction

• position

True or False

Applying force to an object always causes it to move

When testing two types of ball ramps you need to use the ______ size ramps.

• bigger

• smaller

• same

• different

Which two tools can measure the mass of an object and the distance of an object?

• balance and push

• meter stick and balance

• push and pull

• friction and energy

______ can slow the motion of an object.

• Push

• friction

• inertia

• force

How can you test the strength of a magnet?

• put water on it and see if it holds

• see how much it can pick up

• picking it up with another magnet

• try to break it

Something that changes in an investigation is called

• friction

• potential

• variable

• spring scale

True or false

All forces are equal

true or false

Experiments cannot test the effects of force on an object

To test friction on the same object, ________ surfaces are needed

• same

• wet

• different

• directional