6.7A, 6.7B, 6.7C Review

Front

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

Back

Gravity

Front

Which force is responsible for keeping a book at rest on a table?

Back

Normal force

Front

What is the definition of balanced forces?

Back

Balanced forces are equal in size and opposite in direction, resulting in no change in motion.

Front

What does Newton's third law state?

Back

For every action, there is an equal and opposite reaction.

Front

How do you find the net force when multiple forces are acting on an object?

Back

Add the forces in one direction and subtract the forces in the opposite direction.

Front

What is friction?

Back

Friction is a force that opposes the motion of an object.

Front

What is the normal force?

Back

The normal force is the support force exerted upon an object that is in contact with another stable object.

Front

What is the difference between mass and weight?

Back

Mass is the amount of matter in an object, while weight is the force of gravity acting on that mass.

Front

What is an example of an unbalanced force?

Back

A soccer ball being kicked is an example of an unbalanced force.

Front

What happens to an object at rest when balanced forces act on it?

Back

It remains at rest.