Forms of Energy and Energy Transformations

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

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
• ipod

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

• chemical to electrical to radiant

• radiant to electrical to sound

• chemical to radiant to mechanical to electrical

• electric to radiant to chemical

Tags

NGSS.HS-PS3-2

The picture shows a microwave oven. As a microwave oven is operated, electrical energy is transformed into all of the following types of energy EXCEPT —

• solar
• light
• thermal
• mechanical

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

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

• heat
• chemical energy
• light
• sound waves

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-3

According to the Law of Conservation of Energy, energy cannot be _________ or ____________. 

• destroyed, destroyed
• created, saved
• created, destroyed
• lost, found

What type of energy transformation occurs when using an electric pencil sharpener?

• electrical to mechanical

• sound to electrical

• mechanical to electrical

• potential to sound

Tags

NGSS.HS-PS3-3

What type of energy is stored in batteries or food?

• Potential energy

• Thermal energy

• Chemical energy

• Mechanical energy

Tags

NGSS.MS-LS1-7

NGSS.MS-PS3-2

How does the Law of Conservation of Energy apply to the changes in potential and kinetic energy of a marker as it falls to the floor?

• Potential energy is converted into kinetic energy.

• Kinetic energy is converted into potential energy.

• Kinetic energy is created as potential energy is destroyed.

• Potential energy is created as kinetic energy is destroyed.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS3-5

A bouncy ball falls off a shelf and bounces several times. Each bounce is lower than the one before. Soon the ball stops. Why doesn’t the ball keep bouncing?

• The energy becomes stored in the ball.

• Some of the energy is changed into mass.

• Energy is transferred to the air and ground.

• The air and ground slowly destroy the ball’s energy.

Tags

NGSS.MS-PS3-5