Vocab Quiz #4 -- Forces & Newton's Laws

What is the definition of force?

• A weight that pulls an object down

• A push or a pull that causes a change in the motion of an object

• How fast you're going

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How do you calculate force? What is the equation you use? (Hint: it was in the first picture.)

• f=m/a
• f=a/m
• f=m*a
• a=m*f

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Friction is a force that does what?

• helps an object move faster
• slows down or even stops the motion between two objects
• makes more gravity 

A push or pull.

• force
• gravity
• interaction
• acceleration

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Gravity is 

• A pushing force on the earth
• A magnetic force 
• A pulling force on the earth
• A friction force on the earth

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Which would require the most force to move?

• a toy car
• a sleeping cat
• a science book
• a chair with a friend sitting in it

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What is force measured in?

• Newtons
• Nucleus

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When mass increases then gravity

• Decreases
• Increases
• Stays the same

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What does the strength of gravity between two objects depend upon?

• Mass & distance
• Mass & weight
• Gravity & inertia
• Inertia & mass

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All objects in the universe have a gravitational attraction to each other. 

• True
• False

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