Forces, Energy and Motion Review

What is the value of g on Earth?

• 9.81 m/s^2
• 9.81 N
• 9.81 m
• 9.81 s/m^2

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

• True
• False

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When plants convert the sun's energy into food, which type of energy is it?

• kinetic
• chemical
• thermal
• radiant

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A Newton is a derived unit of force that is actually... (Think of the units involved in Newton's second law of motion) 

• Kg m/s²
• Kg m/s
• Kg 
• Kg m²/s² 

Both of these are measured in Newtons

• Force and acceleration
• Force and weight
• Mass and weight
• Mass and acceleration

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What is the SI unit used to measure weight?

• Grams 
• Liters
• Pounds 
• Newtons 

Free-falling objects on Earth in a vacuum fall at a rate of...

• 98 m/s
• 9.8 mm/s
• 9.8 m/s/s
• 9..8 m/s

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What type of force is shown in the picture above?

• Magnetic
• Gravitational
• Applied
• Normal

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What force ultimately slows the roller coaster to a stop?

• Applied
• Normal
• Friction
• Magnetic

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Which of the following is a unit of energy?

• Kilowatts
• Grams
• Meters per Second
• Joules

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