Newton's Laws

A magician pulls a tablecloth out from under dishes and glasses on a table without disturbing them.

• Newton's 1st Law
• Newton's 2nd Law
• Newton's 3rd Law
• None of them

A person’s body is thrown outward as a car rounds a curve on a highway.

• Newton's 1st Law
• Newton's 2nd Law
• Newton's 3rd Law
• None of them

Rockets are launched into space using jet propulsion where exhaust accelerates out from the rocket and the rocket accelerates in an opposite direction.

• Newton's 1st Law
• Newton's 2nd Law
• Newton's 3rd Law
• None of them

A picture is hanging on a wall and does not move.

• Newton's 1st Law
• Newton's 2nd Law
• Newton's 3rd Law
• None of them

A person not wearing a seatbelt flies through a car window when someone slams on the breaks because the person’s body wants to remain in continuous motion even when the car stops.

• Newton's 1st Law
• Newton's 2nd Law
• Newton's 3rd Law
• None of them

What does the second part of Newton’s first law say about objects at rest?

• They cannot move unless they have a lot of friction.

• If they are heavy, they will stay at rest, but if they are light, they will move.

• They will stay at rest unless an outside force makes them move.

• They have more inertia than objects in motion.

Isaac Newton stated for every action there is an

_________ and _________ reaction.

• equal and same

• equal and opposite

• unequal and same

• unequal and opposite

Your friend kicks a soccer ball, and it stops a few feet from you. What needs to happen to it in order for it to return to your friend?

• Friction has to be applied to the ball.

• Force has to be applied to the ball.

• Speed has to be applied to the ball.

• Inertia has to be applied to the ball.

What does friction do to a moving object?

• Makes it rise

• Slows it down

• Speeds it up

• All of the above

How is velocity different from speed?

• Velocity is when an object goes in reverse.

• Velocity is the direction an object moves in, and it has nothing to do with speed.

• Velocity is speed and direction together.

• Velocity is not at all different from speed.