Energy Review

Energy transformations occur when...

• energy is created through conduction
• energy changes from one form to another
• two forces slide together that are touching
• a chemical reaction takes place

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-4

NGSS.MS-PS1-4

Which of the following energy transformations occur when a lamp that is plugged into a wall socket is functioning correctly?

• Chemical to light
• Electrical to chemical
• Electrical to light
• Chemical to electrical

Which of the following shows an energy transformation from chemical energy to electrical to light energy?

• A bolt of lightning lights the night sky.
• A candle glows brightly in the dark.
• A fire in a fireplace lights up a room.
• A battery causes a flashlight to shine.

A television works by transforming electrical energy into what other kinds of energy?

• Light, thermal, and sound
• Thermal, chemical, and solar
• Sound, mechanical, and electrical
• Light, chemical, and mechanical

Which of the following shows the correct order of the energy transformations that occur when green plants produce their food from the Sun’s energy?

• chemical to thermal
• light to chemical
• thermal to light
• chemical to electrical

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Water high in the air falls due to gravity, the moving water spins turbines, and they create/store electricity...
Pick the BEST Energy Conversion below for a Hydroelectric Dam.

• Mechanical to Electrical
• Electrical to Mechanical to Thermal
• Potential to Kinetic to Electrical
• Kinetic to Mechanical to Electrical

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-1

NGSS.MS-PS3-2

What energy transformation occurs as a mouse produces body heat?

• Chemical --> Thermal

• Thermal --> Chemical

• Electrical --> Thermal

• Thermal --> Mechanical

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-4

The Law of Conservation of Energy states that energy is never _____________ or ____________, only transformed.

• created, destroyed

• created, subtracted

• added, subtracted

• destroyed, subtracted

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-4

NGSS.MS-PS3-3

A skydiver jumps out of a helicopter. What is happening in terms of energy?

• He is gaining potential energy as he falls, and losing kinetic energy.

• He is gaining kinetic energy as he falls and losing potential energy.

• His kinetic and potential energy is always the same.

• He is gaining kinetic and potential energy at the same time.

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-2

Which of the following IS NOT a key ingredient in determining work?

• velocity

• force

• displacement

• cause

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-4