Forces and Motion

Front

What is mass?

Back

Mass is the amount of matter in an object, usually measured in kilograms or grams.

Front

How does mass affect motion?

Back

The greater the mass of an object, the less effect a force will have on its motion.

Front

What is friction?

Back

Friction is a force that resists the motion of two surfaces sliding against each other.

Front

Why does oil make machines work faster?

Back

Oil reduces the friction between the parts of the machine, allowing them to move more freely.

Front

What happens when you push a toy car with more force?

Back

The toy car will roll faster down a ramp.

Front

What is gravity?

Back

Gravity is a force that pulls objects toward each other, such as the Earth pulling us down.

Front

What is a force?

Back

A force is a push or pull that can change the motion of an object.

Front

What is the relationship between force and motion?

Back

A force applied to an object can cause it to start moving, stop moving, or change direction.

Front

What type of force opposes motion?

Back

Friction is the type of force that opposes motion.

Front

If two objects are pushed with the same force, which will move farther?

Back

The object with less mass will move farther.