Forces

A force is a push or a

What is the net force?

• 20 N 
• 0 N 
• 400 N 
• 40 N 

What is the net force?

• 17 N Right
• 3 N Right
• 3 N Left
• 17 N Left

What force is responsible for keeping objects on the ground and causing them to fall when dropped?

• Electromagnetic force

• Strong nuclear force

• Weak nuclear force

• Gravity

Where is magnetic force encountered at home?

• On the refrigerator

• In magnetic toys

• In the kitchen

• In the living room

Which force opposes the motion of objects when they rub against each other?

• Gravity

• Friction

• Magnetism

• Electricity

What is force in physics?

• A push on an object

• A pull on an object

• A combination of push and pull on an object

• A change in the state of an object

What are some examples of forces in physics?

What is the unit of force?

• Joule (J)

• Watt (W)

• Newton (N)

• Pascal (Pa)

Indicate on the diagram where the weight force occurs.