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Physics > Energy Test > Flashcards

Energy Test Flashcards

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1
Q

Conduction

A

Heat that is transferred through a solid by the collision of atoms

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2
Q

Convection

A

A natural stirring of a fluid where warm fluid rises and cold fluid sinks, producing a circular current

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3
Q

Radiation

A

The transfer of thermal energy by electromagnetic waves or fast-moving particles

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4
Q

What are the 3 methods of thermal energy transfer

A

Conduction
Convection
Radiation

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5
Q

Law of Conservation of Energy

A
  1. Energy can never be created nor destroyed

2. It can only change from one form to another

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6
Q

What is negative work?

A

When the force is opposite in direction to the displacement

ex. a car slowing down

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7
Q

What is zero work?

A

For work to be done:

  1. A force must act on the object
  2. The object must change position
  3. There must be a component of the force parallel to the direction of the motion

any situation that does not meet these conditions would result in zero work being done

ex. when you push again the wall, the wall does not move so no work is done on the wall.

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8
Q

What are the 10 different forms of energy?

A

Radiant, kinetic, potential, gravitational potential, elastic potential, chemical potential, nuclear potential, electrical potential, thermal, and sound energy

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9
Q

Radiant Energy

A

the energy of electromagnetic waves

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10
Q

Kinetic Energy

A

the energy possessed by an object due to its motion

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11
Q

Potential Energy

A

energy stored in matter due to its position or the arrangement of its parts

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12
Q

Gravitational Potential Energy

A

the potential energy associated with the gravitational field

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13
Q

Elastic Potential Energy

A

the potential energy stored in an object when it is temporarily forced out of shape

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14
Q

Chemical Potential Energy

A

the potential energy stored in chemical bonds

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15
Q

Nuclear Potential Energy

A

the potential energy stored in the nucleus of an atom

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16
Q

Electrical Potential Energy

A

the potential energy associated with electric charges

17
Q

Thermal Energy

A

the energy associated with the movement and interactions of the particles in an object (the total kinetic and potential energy of an object’s particles)

18
Q

Sound Energy

A

the energy stored in sound waves

19
Q

Thermal Energy

A

the total kinetic and potential energy of the particles within an object

20
Q

Heat

A

the energy transferred from one object to another

21
Q

Temperature

A

the measure of the average kinetic energy

22
Q

Describe the information given on the Energuide label

A
  1. An appliance’s average annual energy consumption in kilowatt hours
  2. The annual energy consumption range for similar models
  3. The energy efficiency of the appliance relative to similar models
23
Q

What type of unit is a kilowatt-hour?

A

it is a unit of energy

24
Q

Latent heat

A

the thermal energy needed for a phase change

25
Q

Latent heat of fusion

A

the quantity of thermal energy transferred in a phase change from solid to liquid or the reverse

UNITS: kJ

26
Q

Latent heat of vaporization

A

the quantity of thermal energy transferred in a phase change from liquid to gas or the reverse

UNITS: kJ

27
Q

Specific Latent Heat of Vaporization

A

the quantity of thermal energy needed to change 1kg of a substance from liquid to gas or the reverse

UNIT: kJ/kg

28
Q

Specific Latent Heat of Fusion

A

the quantity of thermal energy needed to change 1kg of a substance from solid to liquid or the reverse.

UNIT: kJ/kg

29
Q

Temperature, Energy, and Changes of State:

Section I

A

Substance is a solid that is increasing in temperature

30
Q

Temperature, Energy, and Changes of State:

Section II

A

Melting/Freezing/Fusion point – the substance is changing phase from a solid to liquid. The temperature does not change

31
Q

Temperature, Energy, and Changes of State:

Section III

A

Substance is a liquid that is increasing in temperature

32
Q

Temperature, Energy, and Changes of State:

Section IV

A

Vaporization/Condensation point – the substance is changing phase from a liquid to a gas. The temperature does not change

33
Q

Temperature, Energy, and Changes of State:

Section V

A

Substance is a gas that is increasing in temperature

Physics (5 decks)

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