Mechanical Energy Quiz for Physics Class
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Questions and Answers

What is mechanical energy the sum of?

  • Potential energy and chemical energy
  • Mechanical energy and nuclear energy
  • Kinetic energy and potential energy (correct)
  • Kinetic energy and thermal energy

Which of the following is an example of mechanical energy?

  • Ice melting in a drink
  • A guitar string vibrating (correct)
  • A car in a traffic jam
  • A light bulb glowing

Which statement is true about an object with mechanical energy?

  • It exists only when moving at high speeds.
  • It has energy only due to its position.
  • It can have both kinetic and potential energy. (correct)
  • It cannot be at rest.

Which scenario describes a transition of mechanical energy?

<p>A roller coaster at the top of a hill then speeding down (B)</p> Signup and view all the answers

Which of the following does NOT represent mechanical energy?

<p>A boulder sitting still on the ground (D)</p> Signup and view all the answers

What type of energy is associated with the movement of a soccer ball flying through the air?

<p>Kinetic Energy (B)</p> Signup and view all the answers

Which of the following is an example of potential energy?

<p>A rock sitting at the edge of a cliff (D)</p> Signup and view all the answers

What form of energy is released when chemical bonds break?

<p>Chemical Energy (A)</p> Signup and view all the answers

Which energy type is produced by the movement of tiny particles and is felt as heat?

<p>Thermal Energy (D)</p> Signup and view all the answers

Which example is associated with electrical energy?

<p>Lightning in the sky (C)</p> Signup and view all the answers

Flashcards

Mechanical energy

Mechanical energy is the total energy an object has due to its motion and position.

Kinetic energy

Kinetic energy is the energy an object has due to its motion.

Potential energy

Potential energy is the energy an object has due to its position.

How is mechanical energy calculated?

Mechanical energy is the sum of kinetic and potential energy.

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Examples of mechanical energy

Examples of mechanical energy include a guitar string vibrating, thunder after a lightning strike, someone clapping their hands, a windmill spinning, and a roller coaster at the top of a hill and then speeding down.

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What is kinetic energy?

Energy an object has due to its motion. The faster or heavier the object, the more kinetic energy it has.

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What is potential energy?

Energy stored due to an object's position or shape. It can be transformed into kinetic energy when the object moves.

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What is chemical energy?

Energy stored in the bonds of molecules. Released when those bonds break.

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What is thermal energy?

Energy caused by the movement of particles in matter. Faster movement means greater heat.

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What is electrical energy?

Energy of moving electric charges (electrons).

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