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Physics Equations > Equations > Flashcards

Equations Flashcards

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1
Q

What is equation for weight?

A

weight = mass x gravitational field strength
kg N/Kg
W=mg

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2
Q

What is equation for work done?

A

work done = force x distance (along the line of action of the force)
W=Fs

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3
Q

What is the equation for a force applied to a spring?

A

Force applied to a spring = spring constant x extension

F=ke

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4
Q

What is the equation for moment?

A

Moment of a force = force x distance

M= Fd

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5
Q

What is the equation for pressure?

A

Pressure = force / area

P=F/A

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6
Q

What is equation for speed?

A

Speed= distance/time

S=d/t

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7
Q

What is the equation for acceleration

A

Acceleration = change in velocity/time taken

a=v/t

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8
Q

What is the equation for resultant force?

A

Resultant force= mass x acceleration

F=ma

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9
Q

What is the equation for momentum?

A

Momentum= mass x velocity
kgm/s kg m/s
p=mv

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10
Q

What is the equation for kinetic energy?

A

Kinetic energy = 0.5 x mass x velocity2
J kg m/s
E=0..5mv2

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11
Q

What is the equation for gravitational potential energy?

A

gpe= mass x gravitational field strength x height
kg n/kg
gpe= mgh

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12
Q

What is the equation for power?

A

power= energy transferred or work done/ time
W J J s
p=e/t or p=w/t

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13
Q

What is the equation for efficiency?

A

efficiency= useful output energy transfer/ total input energy

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14
Q

What is the equation for efficiency?

A

efficiency= useful power output/ total power input

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15
Q

What is the equation for wave speed?

A

wave speed = frequency x wavelength

m/s Hz m

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16
Q

What is the equation for charge?

A

charge flow = current x time
C A s
Q=It

17
Q

What is the equation for potential difference?

A

potential difference = current x resistance

V=IR

18
Q

What is the equation for power?

A

Power = potential difference x current

P=VI

19
Q

What is the equation for power?

A

Power= current2 x resistance

P=I2 R

20
Q

What is the equation for energy transferred?

A

Energy transferred = charge flow x potential difference
J C V
E=QV

21
Q

What is the equation for energy transferred?

A

Energy transferred = power x time
J W s
E=Pt

22
Q

What is the equation for density?

A

Density = mass/volume
kg/m3 kg m3
p=m/v

Physics Equations (1 decks)

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