Conservation of Energy Lesson

10.3 Conservation of Energy

By Ms. Alaa Mattar

Warmer Activity

By Ms. Alaa Mattar

Multiple Choice

Which equation belongs to Kinetic Energy

Multiple Choice

Which equation belongs to Potential Energy?

Multiple Choice

What is the conservation energy?

• It means energy can never be forgotten

• It means energy can never be created nor destroyed

• It means energy can always be concluded

Learning Check Point 1

By Ms. Alaa Mattar

Multiple Choice

What happens if the ball does not fall straight down but rolls down a ramp? (assuming no friction)

• It will not effect the system's energy, no matter what the path is

• It will effect the system's energy because path is different

• Energy will only increase or decrease depending on the path

Multiple Choice

• 6300 J

• 3100 J

• 2000 J

Learning Check Point 3

By Ms. Alaa Mattar

Multiple Choice

If a hill farther along the track were higher than the first one, the roller-coaster car would not be able to climb the higher hill. Why?

• because the energy required to do so would be equal to the total mechanical energy of the system.

• because the energy required to do so would be greater than the total mechanical energy of the system.

• because the energy required to do so would be less than the total mechanical energy of the system.

Multiple Choice

As you ski down the slope, your speed _________ as more potential energy is transformed to kinetic energy

• decreases

• increases

• does not change

Multiple Choice

The reference level is chosen to be the height of the bob at the

• lowest point

• highest point

• nutella with vanilla icecream

Plenary

By Ms. Alaa Mattar

Open Ended

Any questions?