Energy Flashcards

November 21st (29 cards)

1
Q

Law of Conservation of energy

A

Energy can not be created nor destroyed only changed in form

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2
Q

Energy

A

Ability to cause change in temperature, shape, speed or direction of an object

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3
Q

Kinetic Energy

A

Energy from objects in motion depends on the mass and speed of an object

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4
Q

voltage

A

measure of how difficult it is for electrons to flow through a material.

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5
Q

joule

A

Measure of the capacity to do work or generate heat

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6
Q

parallel circuit

A

multiple branches for electricity to flow

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7
Q

ohms law

A

Voltage = current x resistance

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8
Q

Electrodes

A

Good conductor of electricity that usually, connects non-metals circuit

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9
Q

Series Circuit

A

Only 1 path for the electric Current to follow

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10
Q

Energy Transformation

A

The change of energy from one form to another

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11
Q

Electricity

A

The form of energy resulting from the existence of charged particles

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12
Q

Transformers

A

Device that transfers some electric energy from one current to another

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13
Q

Alternating Current

A

The value of the quantity and direction of the current is not constant. It changes at a regular interval

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14
Q

Semiconductors

A

It conducts sometimes but not others

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15
Q

Resistance

A

The measure of how difficult it is for electrons to flow through a material

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16
Q

Catalyst

A

Substance that changes the rate of a chemical reaction.

17
Q

Electric Current

A

the steady flow of electrons through a conductor. Electric Current is measured in unit of ampres

18
Q

Ions

A

an atom or molecule with a net electric charge

19
Q

Direct Current

A

Electric Current that flows consistently in one direction

20
Q

current

A

The rate of flow of negative charges in an electric current

21
Q

Battery

A

A device that stores chemical energy and converts it to electrical energy

22
Q

Potential Energy

A

Energy that comes from position or condition

23
Q

Conductors

A

materials that allow thermal energy to be easily transferred

24
Q

Watts

A

Unit of power measuring electric flow

25
Circuit
26
Insulators
Material where electrons can't move easily from place to place - ex) plastic, wood, glass, and rubber
27
Power
The rate at which energy is transferred by a circuit
28
Difference between parallel circuit and series circuit? + drawing
parallel circuit has more than one branch for electricity to flow through series circuit only has one branch for electricity to flow through.
29
Difference between endo thermic and expo thermic + example