Unit 7- Energy

Which of the following best describes potential energy?

• Energy due to motion

• Energy stored due to position

• Energy transferred by heat

• Energy used in chemical reactions

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A roller coaster is at the top of a hill. What type of energy is primarily present at this point?

• Kinetic energy

• Potential energy

• Thermal energy

• Sound energy

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Explain how energy is transformed when a ball is thrown into the air and then caught.

• The ball gains kinetic energy as it rises and loses potential energy as it falls.

• The ball gains potential energy as it rises and gains kinetic energy as it falls.

• The ball loses both kinetic and potential energy as it rises and falls.

• The ball maintains constant energy throughout the motion.

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Which scenario best illustrates the transformation of kinetic energy into potential energy?

• A car accelerating on a flat road

• A book falling off a shelf

• A pendulum swinging to its highest point

• A light bulb being turned on

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A skier is at the top of a slope. As the skier moves down, what happens to the potential and kinetic energy?

• Potential energy increases, kinetic energy decreases

• Potential energy decreases, kinetic energy increases

• Both potential and kinetic energy increase

• Both potential and kinetic energy decrease

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Design an experiment to demonstrate the conversion of potential energy to kinetic energy using a simple pendulum.

• Describe how to measure the height and speed of the pendulum at different points.

• Explain how to calculate the total energy of the pendulum system.

• Discuss the role of friction in the pendulum's motion.

• Identify the materials needed for the experiment.

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A toy car is pushed up a ramp and then released. What type of energy transformation occurs as it moves up and then down the ramp?

• Kinetic to potential, then potential to kinetic

• Potential to kinetic, then kinetic to potential

• Thermal to kinetic, then kinetic to thermal

• Chemical to potential, then potential to chemical

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What is the primary factor that affects the amount of potential energy an object has?

• Its speed

• Its mass

• Its height above the ground

• Its temperature

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A diver stands on a diving board. As the diver jumps off, what happens to the energy?

• Potential energy is converted to kinetic energy

• Kinetic energy is converted to potential energy

• Both potential and kinetic energy are lost

• Energy remains constant

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Which of the following is an example of kinetic energy being transformed into potential energy?

• A car braking to a stop

• A ball rolling down a hill

• A spring being compressed

• A light bulb glowing

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