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Physics > EQUATION > Flashcards

EQUATION Flashcards

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1
Q

weight

A

mass x 9.8

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2
Q

work done

A

force x distance

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3
Q

distance travelled

A

speed × time

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4
Q

kinetic energy

A

1/2 x mass x v2

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5
Q

gravitational potential energy

A

mass x gravitational field strength x change of height

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6
Q

elastic potential energy

A

1/2 x k(spring constant) x extension2

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7
Q

power

A

energy transferred/ time taken

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8
Q

efficiency

A

useful output energy transferred by device/ total input energy supplied to device x 100

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9
Q

energy transferred (t m)

A

m x specific heat capacity x change in temperature

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10
Q

potential difference (volt)

A

energy transferred / charge (coulombs)

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11
Q

resistance (ohm)

A

potential difference / current (amperes)

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12
Q

power supplied

A

current x potential differenceformula for power in terms of curret and resistanc

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13
Q

power (current and hom)

A

current2 x resistance

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14
Q

charge flow

A

current x time

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15
Q

energy transferred in temrs of power

A

power x time

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16
Q

efficiency in terms of power

A

output power/ input power x 100

17
Q

density

A

mass/ volume

18
Q

pressure

A

force / area

19
Q

momentum

A

mass x velocity

20
Q

two formulas for change in energy , matter

A

m x specific heat capacity x change in temperature

m x specific latent heat

21
Q

pressure for a fixed room temperature (g) or mass

A

constant/volume

22
Q

moment of a force

A

force x distance

23
Q

acceleration

A

change in velocity/ time taken

24
Q

speed

A

distance/time

25
Q

newtons second law

A

mass x acceleration

26
Q

force (change in momentum)

A

change in momentum/time taken

27
Q

force (extension)

A

spring constant x extension

Physics (10 decks)

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