MELTS

What is mechanical energy?

• The energy that an object has due to its temperature

• The energy that an object has due to its motion or position

• The energy that an object has due to its electrical charge

• The energy that an object has due to its sound

How can electrical energy be observed?

• As a current that flows in an open electric circuit.

• As a current that flows in a closed electric circuit.

• As a static charge accumulating on a surface.

• As a magnetic field around a conductor.

What is thermal energy?

• A form of coldness in an object.

• The absence of heat in a substance.

• A transfer of energy between substances of different temperatures.

• A type of light energy.

How is sound energy created?

• By the absorption of light by an object.

• When an object vibrates or moves with a back-and-forth motion.

• Through the transfer of thermal energy.

• By the reflection of light off an object.

What are the different types of energy that have been discussed?

• Mechanical, Electrical, Light, Thermal, Sound

• Motion, Elastic, Luminous, Thermal, Sound

• Magnetic, Electric, Light, Temperature, Silence

• Motion, Electric, Laser, Temperature, Sonic

According to the text, what type of energy does an apple tree absorb from the sun?

• Chemical energy

• Mechanical energy

• Light energy

• Thermal energy

What type of energy do we store in our bodies when we eat an apple?

• Mechanical energy

• Light energy

• Chemical energy

• Electrical energy

Into what type of energy is the chemical energy transformed when we perform activities such as swimming, running, or walking?

• Thermal energy

• Light energy

• Mechanical energy

• Electrical energy

What are some objects that require mechanical energy to perform their main function?

• A light bulb

• A car engine

• A microwave oven

• A speaker

Which of the following is an example of an object that requires electrical energy to perform its main function?

• A bicycle

• A windmill

• A refrigerator

• A drum