period 6 - Forces Review

Front

What is friction?

Back

Friction is a force that opposes the motion of an object, causing it to slow down or stop.

Front

What occurs when two objects rub against each other?

Back

Friction occurs.

Front

What is the action-reaction principle?

Back

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

Front

What forces act when you jump up?

Back

Both the force from your legs pushing against the ground and the force of gravity pulling you down.

Front

What forces act on a freely falling object?

Back

Only gravitational force.

Front

What is the Law of Inertia?

Back

An object at rest stays at rest, and an object in motion stays in motion unless acted upon by a net external force.

Front

What is gravity?

Back

Gravity is a force that attracts two bodies towards each other, commonly experienced as the force that pulls objects towards the Earth.

Front

What is air resistance?

Back

Air resistance is a type of friction that acts against the motion of an object moving through air.

Front

What happens to an object in motion when no net force acts on it?

Back

It continues to move at a constant velocity.

Front

What is the difference between mass and weight?

Back

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