U3 Energy Calculations Review

Energy can measured in the following units:

• Pounds

• Joules

• Amps

• Meters

We know that energy cannot be ___________ or destroyed.

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What do we calculate with this equation?

PE = M x G x H

• Elastic Potential Energy

• Total Energy

• Conservation of Energy

• Gravitational Potential Energy

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Organize these options into either potential or kinetic:

Groups:

(a) Potential Energy

,

(b) Kinetic Energy

• Gravitational

• Mechanical

• Chemical

• Thermal

• Elastic

• Radiant

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Energy in motion is called ___________

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A spring converts elastic potential energy into:

• Mechanical Kinetic Energy

• Thermal Kinetic Energy

• Mechanical Potential Energy

• Electrical Kinetic Energy

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Gasoline or the food we eat are examples of ____________ potential energy.

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A car crash is an example of what type of energy transfer?

• Radiation

• Convection

• Conduction

• Collision

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A skier is at the top of Dollar, about to do some sweet tricks. She weighs 45kg, and Dollar is 80m tall. TAKE YOUR TIME and calculate how much energy she has.

• 3,528 Joules

• 8,335 Joules

• 35,280 Joules

• 83,352 Joules

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A skier is at Dollar doing sweet tricks! She goes off a jump at 9 meters per second, and she weighs 45kg. TAKE YOUR TIME and calculate how much kinetic energy does she have?

• 202.5 meters

• 1822.5 Joules

• 202.5 Joules

• 1822.5 kilograms

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