Front

What force is shown when you rub your hands together?

Back

Friction is the force that opposes the motion of two surfaces that are in contact.

Front

What is the amount of matter or 'stuff' in something?

Back

Mass is the measure of the amount of matter in an object.

Front

What force is used by a compass?

Back

Magnetism is the force that attracts or repels magnetic materials.

Front

What force holds us down on Earth and prevents us from floating away?

Back

Gravity is the force that pulls objects toward each other, keeping us grounded on Earth.

Front

What is a push or pull that causes an object to move, stop, or change direction?

Back

A force is any interaction that, when unopposed, will change the motion of an object.

Front

What is the force that opposes the motion of an object sliding on a surface?

Back

Friction is the force that resists the sliding motion of two surfaces in contact.

Front

What is the force that pulls objects toward the center of the Earth?

Back

Gravity is the force that attracts objects toward the center of the Earth.

Front

What do we call the force that can attract or repel magnets?

Back

Magnetism is the force associated with magnets that can attract or repel certain materials.

Front

What is the term for the total amount of matter in an object?

Back

Mass is the term used to describe the total amount of matter in an object.

Front

What is the effect of friction on moving objects?

Back

Friction slows down or stops the motion of moving objects.