Forces Review

Which law of motion states that an object in motion will stay in motion and an object at rest will stay at rest unless acted upon by an unbalanced force?

• Newton's 1st Law of Motion
• Newton's 2nd Law of Motion
• Newton's 3rd Law of Motion

An object's resistance to its change in motion is its

• Friction
• Inertia
• Gravity
• Pressure

A 20 kg bike accelerates at 10 m/s².  what was the force?

• 25 Newtons
• 20 Newtons
• 200 Newtons
• 10 Newtons

Your car has a mass of 2500 kg and a force of 5000 N. How fast will it accelerate?

• 20 m/s²

• 0.5 m/s²

• 2 m/s²

• 120 N

The net force acting on the object is acting _____.

• to the right

• to the left

• up

• down

The net force (Fnet) acting on the object is _____ N.

A baseball player hits a ball with 400 N of force. How much force does the ball exert on the bat?

• 300

• 400

• 500

• Not enough info to tell

A small bug splats against a car windshield. Which object experiences greater force?

• The bug

• The windshield

• Both experience the same force

• Not enough info given

As mass increases, what happens to gravitational force?

• increases
• decreases
• stays the same
• i don't know

As mass increases, what happens to gravitational force?

• increases
• decreases
• stays the same
• i don't know