A rock with a mass of 5 kg is perched on a ledge that is 10 meters high. What is the potential energy of the rock?

What equation would you use to solve this problem?

• PE = m * g * h

• KE = 0.5 * m * v²

• PE = 5 * 9.8 * 10

• KE = 0.5 * 5 * 10 * 10

Tags

NGSS.HS-PS2-4

NGSS.HS-PS3-1

A car with a mass of 1200 kg is traveling at a speed of 20 m/s. Calculate the kinetic energy of the car.

What equation would you use to solve this problem?

• PE = m * g * h

• KE = 0.5 * m * v²

• PE = 5 * 9.8 * 10

• KE = 0.5 * 5 * 10 * 10

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

A 70 kg runner sprints at a speed of 8 m/s.

What is the mass in this question?

• 8 m/s

• 9.8 m/s²

• 70 kg

• There is no mass

A car with a mass of 1200 kg is traveling at 20 m/s.

What is the speed (or velocity) in this question?

• 20 m/s

• 9.8 m/s²

• 1200 kg

• There is no mass

At which point does the cart have the most potential energy?

• A

• B

• C

• D

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

At which point does the cart have the most kinetic energy?

• A

• B

• C

• D

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2

At which point(s) does the cart have BOTH potential AND kinetic energy?

• A

• B

• C

• D

Tags

NGSS.HS-PS3-2

At which point(s) does the cart have the most Total Energy?

• A

• C

• D

• All points have the same total energy

Tags

NGSS.HS-PS3-1

The Law of Conservation of Energy says that:

• Energy can be created, but once it is used it disappears forever

• Energy cannot be created or destroyed

• Energy can't be created but can be destroyed

• Energy can be created and destroyed

Tags

NGSS.MS-PS3-5

What is one of the main benefits of renewable energy?

• Once you use the energy source, you can't get it back

• The energy source can either be regrown, or it won't run out

• It puts harmful poisins in the atmosphere

• It reduces the number of greenhouse gases in the atmosphere

Tags

NGSS.HS-ESS3-4