Newton's 2nd and 3rd Law

Multiple Choice

A 5 kg object is moving with an acceleration of 2 m/s squared. What is the force of the object? (F=ma)

• 20 N

• 10 N

• 2 N

• 5 N

Multiple Choice

An 10 kg object is moving with an acceleration of 2 m/s squared. What is the force of the object? (F=ma)

• 20 N

• 10 N

• 2 N

• 5 N

Multiple Choice

A 5 kg object is moving with an acceleration of 10 m/s squared. What is the force of the object? (F=ma)

• 20 N

• 10 N

• 50 N

• 5 N

Multiple Choice

When a force acts on an object, the object accelerates in the direction of the force.

• 1st Law

• 2nd Law

• 3rd Law

Multiple Choice

What is the unit of measurement for acceleration?

• kg

• N

• m/s2

Multiple Choice

A photograph of a bird perched on a fence post is shown.

Which description best identifies the action-reaction pair between the bird and the fence post?

• Action: The force of the bird on the wires

  Reaction: The force of the wires on the fence post

• Action: The force of the wires on the fence post

  Reaction: The force of the fence post on the bird

• Action: The force of the fence post on the bird

  Reaction: The force of the bird on the wires

• Action: The force of the bird on the post

  Reaction: The force of the fence post on the bird

Multiple Choice

Which Newton's Law best describes this statement, for every action there is an equal and opposite reaction?

• Newton's 1st Law

• Newton's 2nd Law

• Newton's 3rd Law

Multiple Choice

Newton's 3rd Law of Motion states...

• An object at rest will remain at rest unless acted upon by an outside force and causes a change in motion

• Force is equal to the mass and acceleration of an object.

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

• An object in motion will remain in motion at a constant speed and same direction unless an unbalanced force causes a change in motion.

Multiple Choice

A baseball bat hits a baseball with a force of 100 Newtons. What is the force and its direction exerted by the ball on the bat?

• 100 Newtons, same direction

• 100 Newtons, opposite direction

• 200 Newtons, opposite direction

• 200 Newtons, same direction

Multiple Choice

The rocket engines ignite and push the gases downward, what is the movement of the rocket?

• The rocket moves upward

• Mass of the rocket decreases

• The gases cause a reduction in air resistance

• The rocket moves downward

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