SPH3U Energy Unit Review

A change from one form of energy into another is called:

• Work

• Power

• Energy transformation

• Conservation of energy

Tags

NGSS.HS-PS3-3

What is efficiency?

• The total amount of energy lost

• The % of energy lost as heat

• The % of energy used to perform work

• How long it takes for energy to be conserved

Which of the following is an example of an energy-efficient device?

• Loudspeaker

• Incandescent light bulb

• Gasoline-powered car

• LED bulb

Tags

NGSS.MS-PS3-3

Energy is transferred from the sun to solar panels through the process of:

• Radiation

• Convection

• Conduction

• All of the answers are correct

Tags

NGSS.HS-PS3-4

How can moving water produce electricity?

• It is used to turn a turbine in a dam

• The energy from the evaporation of water is used to produce heat

• Water in plants is used to create conduction currents

• The kinetic energy from fish that swim into a dam is captured and stored

Tags

NGSS.HS-PS3-3

Which of the following best describes how wind power is captured?

• It is captured through the blades on a wind turbine.

• It is captured through solar panels on the blades of a windmill

• It is captured through convection currents in the air

• All of the answers are correct

Tags

NGSS.HS-PS3-3

Energy due to the motion and position of an object is:

• Mechanical Energy

• Heat Energy

• Kinetic Energy

• Potential Energy

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-1

NGSS.MS-PS3-4

Suppose three people were going sledding. What is one way to increase their gravitational potential energy?

• Wax the runners on the sled

• Pull faster

• Find a taller hill

• Wait until the snow is deeper

Tags

NGSS.HS-PS2-4

What form of energy increases as a sled moves down a hill?

• Potential energy

• Kinetic energy

• Nuclear energy

• Elastic potential energy

Tags

NGSS.MS-PS3-5

NGSS.MS-PS3-1

A battery is added to a circuit to light up a bulb. What two types of energy are involved?

• Chemical and electrical

• Thermal and solar

• Mechanical and chemical

• Electrical and kinetic