Forces and Energy

What is the net force?

• 40 N left
• 0 N Balalnced
• 400 N right
• 40 N right

How will this object move? 

• It won't move. 
• It will move to the right. 
• It will move to the left. 
• It will move in both directions. 

How will this object move? 

• It won't move. 
• It will move to the right. 
• It will move to the left. 
• It will move up. 

What is the net force?

• 30 N left
• 25 N right
• 5 N left
• 55 N right

Which could be an example of an unbalanced force?

• A plate sitting on a dining table
• A ball at the top of a hill that is not moving
• Earth orbiting the Sun 
• A baseball that has been thrown to home plate.

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

• Balanced force
• Unbalanced force

Balanced or Unbalanced?

• Balanced 
• Unbalanced

Are forces balanced or unbalanced when a car is moving at a constant speed in a straight line?

• Balanced
• Unbalanced

Are forces balanced or unbalanced when a marble rolls down a ramp?

• Balanced
• Unbalanced

Are forces balanced or unbalanced when skateboarding down a ramp?

• Balanced
• Unbalanced