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Physics > Thermal energy/ electric > Flashcards

Thermal energy/ electric Flashcards

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1
Q

Thermal energy

A

The internal energy present in a system due to its temperature

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2
Q

Temperature

A

The measure of the average kinetic energy

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3
Q

Kinetic energy

A

The motion of particles in a substance. The energy resulting from movement of an object

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4
Q

Heat

A

The energy transferred from one system to another because of a difference in temperature

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5
Q

internal energy

A

Total potential energy and kinetic energy of the particles in a system

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6
Q

Specific latent heat

A

The amount of energy transfer necessary to change the state of one kilogram of a substance with no change in its temperature

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7
Q

Specific heat capacity

A

The amount of thermal energy transfer from necessary to raise the temperature of kilogram of a substance by one degree

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8
Q

0 degree’s into kelvin

A

273.15K

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9
Q

what are three components Kinetic molecular theory of matter

A

Matter is compose of tiny particles, Energy is transferred from one particle to another during collision, but at constant temperature the total energy of the system is constant, There particles are in constant, random motion and possess kinetic energy

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10
Q

does gas have potential energy

A

No

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11
Q

what has strong particle attraction, Gas, solid and or liquids

A

solids, liquids

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12
Q

What formula is used to find specific heat

A

Q= mcΔT

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13
Q

what formula is used to find latent heat

A

Q=mL

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14
Q

Conduction

A

the process by which heat or electricity is directly transferred trough the material of a substance when there is a difference in temperature

vibration of particles

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15
Q

convection

A

the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise and colder denser material to sink under the influence of gravity

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16
Q

radiation

A

the emission of energy as electromagnetic which causes ionization

transfer of heat in the form of light

17
Q

what is the charge of electrical energy

A

positive or negative

18
Q

electric current

A

the rate of movement of electric charge carriers from one part of a conductor to another

19
Q

electrical potential difference

A

the change in potential energy per unit charge between two defined points in a circuit

20
Q

what is the symbol of electrical potential difference

A

Volts

21
Q

power

A

the rate at which work is done

22
Q

conversation of charge

A

the conservation of charge states that electrical charges cannot be created or destroyed

23
Q

a cup of water has two holes. one at the top and one at the bottom. what will happen when they are uncovered. what hole will have more water coming out?

A

the bottom hole will have ore water coming out due to the higher pressure

24
Q

1 charge is equivalent to how many what

A

1 electron or proton

25
Q

symbol of charge

A

Q

26
Q

symbol of current

A

I

27
Q

symbol of power

A

W

28
Q

symbol of energy

A

J

29
Q

charge is too small to be measurable so it is measured in what

A

coulomb

30
Q

one charge if could be measured is equivalent to how many coulombs

A

-1.6 x 10-19 coulomb

31
Q

the SI unit of current is what and is equivalent to how many coulombs

A

amps and 1

32
Q

what do voltmeters measure

A

Voltage

33
Q

what are resistance symbols

A

R, Ω)

34
Q

define resistance

A

Resistance is a measure of the opposition to current flow in an electrical circuit.

35
Q

what does more interaction with particle sin a resistor =

A

more resistance so a longer resistor or a thinner resistor both cause more collisions in order for a charge to pass through.

36
Q

Ohm’s law

A

states the electric current is proportional to voltage and inversely proportional to resistance

Physics (1 decks)

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