Forces and Motion Quiz

What is inertia?

• The pull of gravity on an object

• The tendency of an object to stay at rest or in motion

• The speed of an object

• The force that makes things move

What does gravity do?

• Attracts objects towards Earth

• Decreases motion

• Makes objects move faster

• Increases inertia

What is a grid?

• A type of motion

• A measure of speed

• A framework of spaced bars

• A type of force

What can slow down a moving object?

• A smooth surface

• A rough pavement surface

• The pull of gravity

• Inertia

What is needed to overcome inertia?

• A frame of reference

• A force

• Gravity

• A grid

What is a frame of reference?

• A type of force

• An object used for comparison

• A measure of speed

• A type of motion

Why is a grid useful?

• It helps to describe positions and motions

• It increases inertia

• It makes things fall faster

• It slows down moving objects

What happens to a ball on a smooth surface?

• It does not move

• It rolls faster

• It stops immediately

• It rolls slower

What can gravity do to objects?

• Make them float

• Increase their speed indefinitely

• Stop them from moving

• Make them fall towards Earth

What is an example of a frame of reference?

• A rolling ball

• A chair

• A football field

• A moving car