Physics Energy Review Unit

Energy due to the motion and position of an object is:

• Mechanical Energy
• Heat Energy
• Kinetic Energy
• Potential Energy

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Suppose three people were going sledding. What is one way to increase their potential energy?

• Wax the runners on the Wax the runners on the sled.
• Pull faster
• Find a taller hill
• Wait until the snow is deeper.

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What type of energy is occurring as a sled is moving down the hill?

• Potential energy
• Kinetic energy
• Thermal energy
• Moving energy

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A battery is added to a circuit to make a light bulb light. What two types of energy are being used?

• Chemical and electrical
• Thermal and solar
• Mechanical and chemical
• Electrical and kinetic

What type of energy does a burning candle represent?

• Heat
• Solar
• Potential
• Mechanical

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Animals use energy from food to move. What type of energy transformation is occurring?

• Mechanical to chemical
• Chemical to mechanical
• Heat to mechanical
• Thermal to mechanical

Green plants transform the Sun’s energy to food in a process called photosynthesis. What type of energy transformation is occurring?

• Solar to mechanical
• Solar to chemical
• Heat to chemical
• Radiation to heat

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The Law of Conservation of energy states that energy cannot be _____ or ______.

• Created; transformed
• Transformed; destroyed
• Created; destroyed
• Kinetic; potential

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Wrapping wire around an iron core and running an electric current through it creates a(n):

• Electric motor
• Generator
• Current
• Electromagnet

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A force of repulsion or attraction of magnetic materials is:

• Magnetism
• Magnetic Field
• An electric motor
• Gravity

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