Conservation of Energy

What are the two types of Mechanical Energy? (ME)

• Kinetic and Potential Energy
• Kinetic and Nuclear Energy
• Potential and Chemical Energy
• Thermal and Kinetic Energy

Kinetic Energy is defined as

• Energy stored due to its location
• Energy of motion
• Energy stored in the bonds of molecules
• Heat energy

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The equation to find kinetic energy is

• KE=1/2mv²
• KE=mgh
• KE=1/2kx²
• KE=Fd

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A 70 kg runner has a velocity of 5 m/s. Her kinetic energy is

• 875 J

• 175 J

• 1750 J

• 350 J

• 900 J

gravitational potential energy is defined as

• the energy an object has due to its height above the ground
• the energy an object has due to its motion
• the energy a spring has due to its stretch
• the chemical energy stored in the molecules of atoms

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NGSS.MS-PS3-2

__________ is stored energy. 

• Potential
• Kinetic
• None of the above 
• All of the above 

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What kind of energy is in a moving skateboard?

• Potential
• Kinetic

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What kind of energy is in a person climbing a ladder?

• Potential
• Kinetic
• Both

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Which position has the most potential energy?

• A
• G
• C
• D

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NGSS.MS-PS3-2

An object has 64 J of kinetic,134 J of potential, then it will have _____ of mechanical energy.

• 8,576 J
• 189 J 
• 70J
• 198 J