Science chapter 3 and 4

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Questions and Answers

Energy

Ability to do work or cause change

Motion

Change in position relative to another.

Force

Push or pull

Work

<p>Anytime you exert a force on an object that causes it to change its motion and the same direction that you exert that force.</p> Signup and view all the answers

Power

<p>The rate at which work is done</p> Signup and view all the answers

Potential energy

<p>Energy resulting from the position or shape of an object</p> Signup and view all the answers

Kinetic energy

<p>Energy and object has because of it being in motion</p> Signup and view all the answers

Mechanical energy

<p>Amount of energy an object has due to its motion shape or position</p> Signup and view all the answers

Nuclear energy

<p>Type of potential energy stored in the nucleus. Produces heat.</p> Signup and view all the answers

Fission

<p>The nucleus splits through fission</p> Signup and view all the answers

Thermal energy

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

Faster particles equals

<p>More heat which equals more energy</p> Signup and view all the answers

Chemical energy

<p>Form of potential energy released when chemical bonds are broken.</p> Signup and view all the answers

Electrical energy

<p>Energy from electrical charges plus electrons.</p> Signup and view all the answers

Electro magnetic radiation

<p>Kinetic energy that travels through space in waves. (Through air or water)</p> Signup and view all the answers

Energy transformation

<p>When one form of energy transforms into another one</p> Signup and view all the answers

Energy transfer

<p>When energy moves from one object to another</p> Signup and view all the answers

Law of conservation of energy

<p>When an object loses energy, another must gain it.</p> Signup and view all the answers

Conduction

<p>Transfer of energy from one object to another through contact</p> Signup and view all the answers

Convection

<p>Transfer of heat through the movement of fluids (anything that flows like air)</p> Signup and view all the answers

Convection currents

<p>Air heated and rises (cooler air sinks)</p> Signup and view all the answers

Flashcards

Energy

Ability to do work or cause change.

Motion

Change in position relative to another object.

Force

A push or pull.

Work

Work is done when a force causes an object to move in the same direction as the force.

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Power

The rate at which work is done.

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Potential Energy

Energy resulting from the position or shape of an object.

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Kinetic Energy

Energy an object has because it is in motion.

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Mechanical Energy

Total energy an object has due to its motion, shape, or position.

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Nuclear Energy

Type of potential energy stored in the nucleus of an atom.

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Fission

Process where the nucleus of an atom splits, releasing energy.

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Thermal Energy

Total kinetic and potential energy of an object.

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Faster Particles & Heat

Faster particles mean more heat which equals more energy.

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Chemical Energy

Form of potential energy released when chemical bonds are broken.

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Electrical Energy

Energy from electrical charges and electrons.

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Electromagnetic Radiation

Kinetic energy that travels through space in waves.

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Energy Transformation

When one form of energy changes into another.

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Energy Transfer

When energy moves from one object to another.

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Law of Conservation of Energy

Energy cannot be created or destroyed, only transferred or transformed.

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Conduction

Transfer of energy from one object to another through direct contact.

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Convection

Transfer of heat through the movement of fluids (like air or water).

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Convection Currents

Patterns of air movement where heated air rises and cooler air sinks.

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