Mastery Force and Motion

What happens to an object when two or more forces act on it in the same direction?

• The object's mass increases

• The net force increases

• The net force decreases

• The net force becomes zero

What is the result of a net force acting in the opposite direction of an object's motion?

• The object's speed decreases

• The object's speed remains the same

• The object's speed increases

• The object changes shape

What happens to an object if the net force acting on it is zero?

• It accelerates indefinitely

• It maintains a constant speed and direction

• It stops immediately

• Its mass increases

What units are used to measure the strength of a force?

• Joules (J)

• Kilograms (kg)

• Meters per second squared (m/s^2)

• Newtons (N)

Calculate the Net Force. 

• 60N, Left 
• 40N, Right 
• 0N
• 60N, Right

What is the net force?

• 20 N 
• 0 N 
• 400 N 
• 40 N 

What is the net force?

• 17N Left

• 3 N, right

• 10N Right

• 3N Left

Because of inertia, a resting object will remain at ________.

• rest
• a constant speed
• school
• inertia 

Because of inertia, a moving object will keep ________ unless acted on by an unbalanced force.

• at rest

• moving

• in one spot

• inertia

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

• inertia
• kinetic energy
• vector
• net force