Energy Transfers and Transformations

At which point(s) on the roller coaster is the gravitational potential energy at its maximum?

• A
• B
• C
• D

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At which point(s) on the roller coaster is the kinetic energy at its maximum?

• A
• B
• C
• D

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What does the Law of Conservation of Energy state?

• Energy cannot be created or destroyed
• Nothing can exchange energy
• Energy will increase over time.
• Energy will decrease over time.

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What happens when the ball goes from the highest position to the lowest position

• PE and KE increases and decreases together

• Impossible to know without knowing the mass of the object

• the PE decreases while KE increases

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Imagine dropping a basketball. When would it have the most gravitational potential energy?

• When it is closest to the ground
• When it is at the highest point
• When it is halfway down
• It has the same amount of gravitational PE at all points

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Heat is the movement of ______.

• radiation
• thermal energy
• cold
• fire

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What type of energy is in this picture?

• Kinetic
• Potential
• Chemical
• Sound

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Daily Review - What is the potential energy of a 25 kg backpack sitting on a 0.8 m high table?

PE = mgh

Potential energy is based on ....

• height

• speed

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What is the energy transformation?

• Kinetic to Mechanical to Electrical
• Kinetic to Mechanical to Kinetic
• Electromagnetic to Mechanical to Electrical
• Kinetic to Sound to Electrical

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