Energy Transformations

Think about a rollercoaster and the typical motions of these types of rides.​

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1. Does the rollercoaster go through a transfer of energy?​

2. What types of energy transfers does the rollercoaster go through as it moves across the rails? ​

3. What other types of energy are being transferred here?

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Bell work

Watch the pendulum swing.

Is the total amount of energy increasing decreasing, or staying the same?​

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What types of energy are there in the pendulum?

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Discuss and prepare to answer on the following slide.

Practice
Questions

The total energy stays the same.

Most important types of energy in this pendulum are gravitational potential energy and mechanical kinetic energy. ​

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The gravitational potential energy increases the higher the pendulum is because it has farther to fall. ​

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The mechanical kinetic energy increases because the ball is moving as fast as it can.

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When you lift an object higher it takes energy to do that. It can be tiring to climb stairs!​

When an object falls down it changes that stored energy from gravity into motion, which is mechanical kinetic energy.

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Transformation from Gravitational Potential Energy to Mechanical Kinetic Energy.

1. How can this skater gain energy to go fast in this half pipe?
   
   

2. What happens to all that energy when she reaches the bottom?

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Please make sure to write down the questions and the answers in your notebooks.

Skater Energy​

​‪Energy Skate Park‬ (colorado.edu)

3. Can the energy change back?
   
   

4. In the total sum of this energy would get changed into heat because of _________.

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Please make sure to write down the questions and the answers in your notebooks.

Skater Energy​

Finish the "Energy Transformations and Work CW" that is found on Showbie.

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Independent work