Understanding Forces and Motion

What is a force?

• A type of energy

• A push or pull that can change the motion of an object

• A type of friction

• A state of rest

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Zoe is observing different forces at play in her environment. She notices that some forces require contact, while others do not. Which of the following is a Non Contact Force?

• Dynamic Friction

• Static Friction

• Gravity

• Horizontal Force

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What happens when Abigail and Olivia push a box from opposite sides with equal force?

• The box speeds up

• The box accelerates

• The box will not move

• The box changes direction

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What type of force keeps a book at rest on a table until pushed?

• Horizontal Force

• Gravity

• Static Friction

• Dynamic Friction

According to Newton, what happens to an object at rest if no external force acts on it?

• It will accelerate

• It will change direction

• It will stay at rest

• It will start moving

A push or pull is referred to as a: 

• vector
• force
• air resistance

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Is it possible for an object to move at constant speed without a force pulling or pushing it?

• No, it requires constant force.
• Only if it is in a vacuum.
• It can only happen in a circular motion.
• Yes, it is possible.

Force is measured in

• pascals
• newtons
• joules
• watts

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 A force that causes an object to slow down when it touches another object is     

(a)  

One person pushes a box with a force of 100 N and another person pushes on the same box in the opposite direction with a force of 90 N. What is the net force acting on the box?

• 100 N
• 90 N
• 10 N
• 0 N

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