Mechanical Energy

What are the units for energy?

• Watts

• Joules

• Newtons

• meters

What has to be true about an object for it to have kinetic energy?

• it must be moving

• it must be elevated

• it must be experiencing a net force

• it must be accelerating

Tags

NGSS.HS-PS3-2

Does your desk have kinetic energy right now? Explain and justify your answer.

• yes because it is sliding across the room right now

• no because it is not moving

• yes because it has someone sitting in it

• no because it is here on earth

Tags

NGSS.HS-PS3-2

What is potential energy?

• the energy an object has due to its position or condition
• the energy an object has due to its motions
• the energy an object has due to its chemical composition
• theh energy an object has due to its atomic structure

Tags

NGSS.MS-PS3-2

When does an object have no kinetic energy?

• when it is at rest
• when it is moving very slowly
• when the only force that is acting on it is gravity
• when it has no electrical charge

Tags

NGSS.HS-PS3-2

What is energy?

• The pivot point allowing a lever to move

• A push or a pull

• Measurement of weight

• The ability to move or allow something to move

What is an example of kinetic energy?

• A: Water moving down a waterfall

• B: A car parked in a driveway

• C: A baby waving its hands

• D: Both A and C

Tags

NGSS.MS-PS3-5

What is an example of potential energy?

• A book sitting on a shelf

• A car moving down the highway

• A person playing basketball

• Both B and C

Tags

NGSS.MS-PS3-2

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

Tags

NGSS.HS-PS3-2

Kinetic Energy is defined as

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

Tags

NGSS.HS-PS3-2