Energy forms, conversions, efficiency, and transfers

Which of the following energy conversion 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

What type of energy is represented in the picture?

• Gravitational Potential Energy

• Elastic Potential Energy

• Chemical Potential Energy

What energy conversion takes place when a phone is playing music?

• Electrical to chemical to light
• Sound to chemical to mechanical
• Chemical to electrical to sound
• Light to electrical to thermal

Tags

NGSS.HS-PS3-3

Which of the following devices transforms electrical energy into mechanical energy?

• An e-reader

• A fan

• A manual pencil sharpener

• An iPod

Which of the following best describes the energy conversion that occur when a flashlight running on batteries is turned on?

• Chemical to electrical to light

• Light to electrical to sound

• Chemical to elastic to mechanical to electrical

• Electric to radiant to chemical

Turning on a lamp is an example of an energy conversion from electrical to two other forms. Which two are they?

• Elastic

• Light

• Thermal

• Chemical

What type of energy is represented in the picture?

• Gravitational Potential Energy

• Elastic Potential Energy

• Chemical Potential Energy

What type of energy is represented in the picture?

• Thermal

• Chemical

• Sound

• Nuclear

Tags

NGSS.MS-LS1-6

What energy conversion occurs when howler monkeys call to each other loudly in the forest?

• Chemical --> Mechanical --> Sound

• Chemical --> Sound --> Thermal

• Sound --> Chemical --> Nuclear

• Mechanical --> Chemical --> Sound

What type of energy is represented in the picture?

• Gravitational Potential Energy

• Elastic Potential Energy

• Chemical Potential Energy

Tags

NGSS.MS-PS3-2