Forces

An _______ force must act on an object for it to CHANGE it's motion

• balanced
• unbalanced
• gravitational
• electrical

What is defined as a push or pull?

• force

• motion

• vector

• speed

This type of force resist motion between two surfaces that are pressed together

• contact
• gravity
• friction

If the net force is equal to zero, the forces acting on the object are

• balanced

• unbalanced

Balanced forces do not change the objects speed or 

• direction
• distance 
• time
• mass

The unit of force is

• m/s
• m/s^2
• newton
• kg

Forces that have a net force of zero ( the object is still).

• Balanced force
• Unbalanced force

What is the net force?

• 5000 N right
• 4000 N right
• 40 N left
• 4000 N left

Jonny and Patty are pushing against a basketball. Both of them push against theball on opposite sides with a force of 20 N to keep the ball still. What is the net force?

• 400 N
• 24 N
• 0 N
• 40 N

What is the net force in this picture?

• 50 Newtons to the right
• 950 Newtons to the right
• 950 Newtons to the left
• 50 Newtons to the left