YR 8 SC - Energy Revision Quiz 2

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.

Tags

NGSS.MS-PS3-4

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

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

• An e-reader
• a fan
• a manual pencil sharpener
• ipod

What best describes the energy conversion that occurs when you turn on a hair dryer?

• electric to kinetic to thermal and sound
• chemical to thermal to light and sound
• nuclear to electrical to thermal and sound
• kinetic to light to thermal and sound

Tags

NGSS.MS-PS3-5

In energy transformations, "wasted energy" usually takes what form?

• heat
• chemical energy
• light
• sound waves

Tags

NGSS.MS-PS1-4

Which is an example of radiant energy to thermal energy transformation?

• a greenhouse
• an electric stovetop
• an electric stove
• a car's brakes

What two forms of energy are given off by a burning candle?

• heat and light
• mechanical and electrical
• nuclear and light
• potential and heat

Tags

NGSS.MS-PS1-4

What is the best example of a device that converts electrical energy to light and sound?

• a clock radio
• a toaster
• a flashlight
• an electric toothbrush

Tags

NGSS.MS-PS3-5

Which of the following mechanical energy to electrical energy?

• solar calculator
• windmill
• glow stick
• firecracker

Tags

NGSS.MS-PS3-5