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physics\ > equation for speed > Flashcards

equation for speed Flashcards

distance/time

1
Q

Equation for force

A

Force = mass * acceleration

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2
Q

(Average) speed equation

A

Distance (moved) / time (taken)

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3
Q

Acceleration equation

A

Change in velocity / time taken

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4
Q

Final velocity equation

A

Final velocity^2 = initial velocity^2 + 2(acceleration x displacement)

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5
Q

Weight equation

A

weight = mass x gravitational field strength

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6
Q

Stopping distance equation -_-

A

Stopping distance = thinking distance + braking distance

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7
Q

Force equation (momentum)

A

Change in momentum (kg m/s) / time (s)

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8
Q

Moment equation

A

Moment (Nm) = Force (N) x perpendicular distance (m)

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9
Q

Voltage equation

A

Voltage (V) = current (I) x resistance (R)

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10
Q

Charge

A

Charge (C) = Current (I) x Time (t)

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11
Q

What
Is charge measured in

A

Coulomb

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12
Q

Energy transferred

A

Energy transferred = charge x voltage

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13
Q

Energy transferred (2)

A

Energy transferred = charge x current x resistance

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14
Q

Electrical power = current x voltage

A
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15
Q

Wave speed equation

A

Wave speed = frequency (hz) x wavelength

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16
Q

Critical angle

A

Sin c = 1/n (n is the refractive index)

17
Q

Refractive index (n) = speed of light in a vacuum (c) / speed of light in that material (v)

A
18
Q

Refractive index (snells law) = sin i/ sin r

A
19
Q

Efficiency equation

A

(Useful energy output / total energy output ) x 100%

20
Q

Work done = force x distance moved

A
21
Q

Energy in kinetic energy store

A

1/2 x mass x (speed)^2

22
Q

Density equation

A

Density = Mass / volume

23
Q

Pressure equation

A

force / area

24
Q

Pressure difference equation

A

Height x density x gravitational field strength

25
Q

Specific heat capacity

A

Change in thermal energy (J) = mass x specific heat capacity x change in temp

26
Q

Momentum

A

Velocity x mass

physics\ (5 decks)

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