Changes in Energy

When a lightbulb is turned on, electrical energy is changed to ______.

• mechanical energy
• sound
• heat and light
• solar energy

What energy transformations take place when a battery-operated radio is in use?

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

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

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-PS1-4

NGSS.MS-PS3-3

The energy transformation that takes place when a flashlight is turned on is...

• Chemical - electrical - light
• Chemical - light - electrical
• Electrical - thermal - light
• Nuclear - light - electrical

Which energy transformation best describes what happens in an oven?

• Electrical ->Thermal
• Electrical -> Radiant
• Electrical -> Mechanical
• Electrical -> Chemical

Tags

NGSS.MS-PS1-4

The purpose of solar panels is to change ___________ energy into ____________.

• light, electrical
• light, chemical
• thermal, electrical
• thermal, chemical

Tags

NGSS.HS-PS3-3

Which answer would best fit this energy transformation:
chemical energy -> electrical, light and thermal energy

• turning on a flashlight
• nuclear power plant
• digesting an apple
• tanning bed

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-3

What machine changes electrical energy into light and sound energy?

• battery
• light bulb
• alarm clock
• apple