Forces and Motion

What causes a change in an object's motion?

• Balanced forces

• Acceleration

• Unbalanced forces

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What is the name for a push or pull?

• A movement
• A force
• Speed
• Density

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What Unit do we Measure Force in? 

• Newtons
• Joules
• Force
• Don't know

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Any change in an objects speed or direction

• Inertia
• Force
• Acceleration
• Reaction

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

• Motion
• Friction
• Work
• Displacement

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How are speed and velocity different?

• Speed includes direction
• Speed indicates momentum
• Velocity includes Momentum
• Velocity includes direction

What law is best described

A person not paying attention while skateboarding hits a rock. The skateboard stops...they don't.

• The Law of Inertia (1st law)

• The Law of Acceleration (2nd law)

• The Law of Conservation of Momentum

• Action Reaction Law (3rd law)

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What is Newton's First Law

• F=ma
• Every action has an equal and opposite reaction
• An object at rest stays at rest, an object in motion stays in motion. 
• Friction 

A person is pushed forward into their seatbelt when a car stops

• 1st
•  2nd
• 2 and 3
• 3rd 

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Newton's third law states that any action will have a(n) _______ and ______ reaction

• Equal and similar
• Equal and opposite
• Equal and different
• Greater and opposite

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