force

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

• A parked car

• A baseball that has been thrown to home plate.

(T or F?) A balanced force is only an object that is not moving. 

• True 
• False

Balanced or Unbalanced?

• Balanced 
• Unbalanced

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

• Balanced
• Unbalanced

What is the unit to MEASURE force?

• Kilogram
• Meter
• Pascal
• Newton

A ____________ is a push or a pull on an object.

• friction
• force
• magnet
• gravity

If these teams are pulling with the same amount of force what will happen?

• The boy in blue will win.
• They will not move at all.
• The boy in red will win.
• Both will fall down.

Examples of forces that make something move are...

• pushes
• pulls
• both pushes and pulls

Why is it harder for the boy in Image B to get down the hill?

• Motion

• Friction

• Work

• Gravity

What force brings the pencil down?

• Friction

• Magnetic

• Static Electricity

• Gravitational