CA 4 Practice

What energy transformation occurs when a crock pot is plugged into an outlet and then the control knob is turned "on"?

• thermal to electrical

• mechanical to thermal

• electrical to thermal

• electrical to sound

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-5

What type of energy transformation happens in hydro-electric power?

• kinetic to potential

• sound to mechanical

• chemical to electrical

• mechanical to electrical

Tags

NGSS.MS-PS3-2

NGSS.MS-PS3-5

Which is a disadvantage of solar power?

• solar power is unclean

• reduces the need for fossil fuels

• can only be collected when the sun is shining

• in nonrenewable

Which of the following energy transformations occur when the lamp is plugged into the outlet and the bulb is inserted into the lamp?

• thermal - electrical - light

• electrical - light - thermal

• light - thermal - electrical

• electrical - thermal - light

Tags

NGSS.MS-PS3-5

Is this a heat, light, or sound source?

• Heat
• Sound
• Light

Tags

NGSS.4-PS3-2

NGSS.4-PS4-2

Is this a heat, light, or sound source?

• Heat
• Light
• Sound

Tags

NGSS.4-PS3-2

Is this a heat, light, or sound source?

• Sound
• Heat 
• Light

Tags

NGSS.4-PS3-2

Which object requires only mechanical energy to perform its main function?

• A
• B
• C
• D

Light hitting a mirror and bouncing off is an example of _____________________.

• reflection

• refraction

• transmission

• absorption

Tags

NGSS.MS-PS4-2

Light passing through a lens and bending is an example of ______________________________.

• reflection

• refraction

• transmission

• absorption

Tags

NGSS.MS-PS4-2