Energy Review

Maria’s father started a fire in the fireplace. He crumpled some paper, lit a match, and soon the logs in the fireplace were burning. In this case, the stored chemical energy in the logs was changed into

• electrical energy

• mechanical motion

• heat and light energy

• electrical and heat energy

Tags

NGSS.MS-PS1-2

Which example represents a transformation from light energy to electrical energy?

• 
• 
• 
• 

Bettina spoke into a microphone during the school play to increase the sound of her voice so the audience could hear her speak. The loudness of Bettina’s voice was changed by what type of energy?

• 
  

• sound energy

• mechanical energy

• electrical energy

• thermal energy

A lightbulb converts electrical energy into light and ________.

• chemical

• mechanical

• heat

• nuclear

Tags

NGSS.MS-PS3-5

A windmill converts the mechanical energy of wind into _________ energy produced by a generator.

• 
  

• heat

• nuclear

• chemical

• electrical

A book is pushed and released and it slides across a table for a short distance. The book quickly comes to a stop. The book originally has kinetic energy. To what form of energy is the kinetic energy transformed?

• The kinetic energy is transformed into heat.

• The kinetic energy is transformed into chemical energy.

• The kinetic energy is not transformed into any other type of energy.

• The kinetic energy is transformed into electrical energy.

Tags

NGSS.MS-PS3-5

You are learning about energy transformations in science class. Sally's group made this electromagnet using a battery and some wire. Describe the energy transformation you see here.

• electrical to magnetic

• magnetic to electrical

• mechanical to magnetic

• electrical to chemical

Tags

NGSS.MS-PS3-5

When Clayton lights a firework, its potential energy is converted to all but what form?

• 
  

• mass

• light

• thermal

• sound

Tags

NGSS.MS-PS3-5

Heat always travels from ________ to __________.

• hot to cold

• cold to hot

Tags

NGSS.MS-PS1-4

Most of the energy needed for all the processes on earth comes directly or indirectly from the sun. There is no medium or material connecting the sun to the earth. Therefore, the only type of heat transfer possible to transfer energy from the sun to the earth is

• 
  

• condensation

• conduction

• convection

• radiation