Energy and Motion Flashcards
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Questions and Answers

What is energy?

  • The speed of an object
  • The ability to do work (correct)
  • A push or pull
  • The energy of motion

    • What results when a force causes an object to move?

    Work

    What is a force?

    A push or pull

    What is potential energy?

    <p>The energy of position or shape</p> Signup and view all the answers

    What is kinetic energy?

    <p>The energy of motion</p> Signup and view all the answers

    Mechanical energy is equal to the sum of _____ and _____ energy.

    <p>kinetic, potential</p> Signup and view all the answers

    What does speed depend on?

    <p>Distance traveled and time taken</p> Signup and view all the answers

    What is acceleration?

    <p>Rate of change of speed or velocity</p> Signup and view all the answers

    What does energy transformation refer to?

    <p>A change from one form of energy to another</p> Signup and view all the answers

    The law of conservation of energy states that energy can be created.

    <p>False</p> Signup and view all the answers

    What is energy transfer?

    <p>The process of energy moving from one object to another</p> Signup and view all the answers

    What is a wave?

    <p>A disturbance or vibration that transfers energy</p> Signup and view all the answers

    What is thermal energy?

    <p>The total energy of the particles that make up an object</p> Signup and view all the answers

    What kind of energy does a compound have that changes as its atoms rearrange?

    <p>Chemical energy</p> Signup and view all the answers

    What is electrical energy?

    <p>The energy of electrical charges</p> Signup and view all the answers

    What causes sound energy?

    <p>An object's vibrations</p> Signup and view all the answers

    What is light energy?

    <p>Energy produced by the vibrations of electrically charged particles</p> Signup and view all the answers

    What is nuclear energy?

    <p>Energy associated with changes in the nucleus of an atom</p> Signup and view all the answers

    Which of the following is NOT a form of energy?

    <p>Momentum</p> Signup and view all the answers

    Study Notes

    Energy Concepts

    • Energy: Fundamental ability to perform work.
    • Work: Occurs when a force moves an object in its direction; involves force and displacement.
    • Force: A vector quantity defined by a push or pull, characterized by magnitude and direction.

    Types of Energy

    • Potential Energy: Energy stored due to an object's position or shape; can be gravitational or elastic.
    • Kinetic Energy: Energy of a moving object; depends on mass and speed.
    • Mechanical Energy: Combined total of kinetic and potential energy in an object (KE + PE = ME).

    Motion and Rates

    • Speed/Velocity: Speed is how fast an object moves, depending on distance and time. Velocity includes direction.
    • Acceleration: Indicates the rate of change of velocity; positive acceleration speeds up, negative slows down.

    Energy Dynamics

    • Energy Transformation: The process of changing energy from one form to another (e.g., potential to kinetic).
    • Conservation of Energy: Principle stating energy cannot be created or destroyed, only transformed or transferred.
    • Energy Transfer: Movement of energy from one object to another, facilitating work or change.

    Energy Types and Examples

    • Wave Energy: Energy transmitted by disturbances, such as sound and light waves.
    • Thermal Energy: Total energy of particles in an object, relates to temperature.
    • Chemical Energy: Energy stored in chemical bonds; released during chemical reactions; a type of potential energy.
    • Electrical Energy: Energy resulting from the movement of electric charges.
    • Sound Energy: Produced by vibrations of an object, traveling as waves.
    • Light Energy: Generated from vibrations of electrically charged particles; enables vision.
    • Nuclear Energy: Energy from nuclear reactions, involving changes in an atom's nucleus.

    Summary of Energy Forms

    • Thermal: Related to particle motion and temperature.
    • Chemical: Potential energy in molecular bonds, changes during reactions.
    • Electrical: Involves charged particles and currents.
    • Sound: Energy from vibrating objects.
    • Light: Energy from vibrating charged particles.
    • Nuclear: Energy from atomic nucleus changes.

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    Description

    Test your knowledge on fundamental concepts of energy, motion, and forces with these flashcards. Each card presents key definitions and terms to help you understand physics better. Perfect for students learning about the principles of energy and motion.

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