Newton's Laws of Motion

Front

What will happen if you're in a car, and the driver slams on the brake? Options: You will stop moving, You will continue moving forward, You will gradually slow down, You will speed up.

Back

You will continue moving forward.

Front

According to Newton's first law, an object in motion will stay in motion unless:
- An opposing force acts on it.
- It's in outer space.
- It stops.
- It remains at rest.

Back

An opposing force acts on it.

Front

What might happen if you were in a braking car, and you weren't wearing your seat belt?

Back

You'd fly forward through the windshield.

Front

What causes a ball rolling across a rug to slow to a stop?

Back

Friction resists the ball's forward motion.

Front

What part(s) of a moving car experience the most friction?

Back

Front

Which of the following is an opinion about friction?

• It occurs any time two objects are in contact
• It always acts in the opposite direction as motion
• It slows objects down too much
• It prevents objects on earth from staying in motion forever

Back

It slows objects down too much

Front

If an unbalanced force acts on an object, what will happen?

Back

It will accelerate in the same direction as the force.

Front

Ordinarily, gravity and the normal force counterbalance each other. In other words:

Back

They cancel each other out

Front

What is net force?

Back

The combined forces acting on a particular object

Front

According to Newton's third law, what happens when you push against a wall?

Back

The wall pushes back at you with the same amount of force.