Newton's Laws of Motion

Multiple Choice

 What is the unit called that measures force?

• weight
• meter
• Newton
• kilogram

Multiple Choice

The tendency of an object to resist a change in motion is...

• inertia
• kinetic energy
• vector
• net force

Multiple Choice

What is Newton's First Law

• F=ma

• Every action has an equal and opposite reaction

• An object at rest stays at rest, an object in motion stays in motion. 

• Friction 

Multiple Choice

Newton's second law of motion describes acceleration as force divided by __________.

• mass

• inertia

• speed

• direction

Multiple Choice

A force of 90N is applied to each cart below, which one will accelerate the fastest?

• Cart 1
• Cart 2
• Cart 3 
• Cart 4

​Example question:

​How much force is required to accelerate a 2kg mass at 3m/s²?

​

force = mass x acceleration

force = 2 x 3

force = 6 N​

​

How much force is required to accelerate a 10kg mass at 3m/s²?

​

Force = 10 x 3

force = 30 N​

Multiple Choice

F= mass * acceleration

A 20 kg bike accelerates at 10 m/s². what is the force acting upon it?

• 25 Newtons

• 20 Newtons

• 200 Newtons

• 10 Newtons

Multiple Choice

$$F=m\times a\ \ or\ \ a=\frac{F}{m}$$

According to __________, the acceleration of an object is equal to the net force acting on the object divided by the object's mass. 

• Newton's Second Law

• Newton's Third Law

• Newton's First Law

Multiple Choice

Newton's Third Law States...

• Objects in motion stay in motion and objects at rest stay at rest
• Force is equal to mass times acceleration
• For each action there is an equal and opposite reaction

Multiple Choice

A baseball player bats a ball with a force of 1,000 N. The ball exerts a reaction force (without any additional forces action on it) against the bat of...

• Less than 1, 000 N
• 1,000 N
• More than 1,000 N

Multiple Choice

Balanced or unbalanced?

• balanced

• unbalanced

Multiple Choice

An object's velocity can be changed by changing its speed, its direction, or both.

• True

• False

Multiple Choice

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