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Science > Physics Equations > Flashcards

Physics Equations Flashcards

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1
Q

What is the equation to calculate weight

A

Weight=mass x gravitational field strength (g)

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2
Q

How do you calculate Work Done

A

Work done= force x distance (along the line of action of the force

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3
Q

How to calculate force applied to a spring

A

Spring Constant x extension

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4
Q

Moment of a force

A

Force x distance (normal direction of force

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5
Q

Pressure

A

Force normal to a surface / area of that surface

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6
Q

Distance travelled

A

Speed x time

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7
Q

Acceleration

A

Change in velocity / time taken

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8
Q

Resultant force

A

Mass x acceleration

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9
Q

Momentum

A

Mass x velocity

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10
Q

Kinetic energy

A

O.5 x mass x (speed x speed)

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11
Q

Gravitational potential energy

A

Mass x gravitational field strength (g) x height

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12
Q

Power

A

Energy transferred / time

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13
Q

What links power, work done, time

A

Power= work done/ time

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14
Q

Efficiency

A

Useful power output / total power input

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15
Q

Wave speed

A

Frequency x wavelength

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16
Q

Charge

A

Current x time

17
Q

Potential difference

A

Current x resistance

18
Q

What links power, potential difference , current

A

Power= potential difference x current

19
Q

What links power, current, resistance

A

Power= (current x current) x resistance

20
Q

What links energy transferred, power, time

A

Energy transferred = power x time

21
Q

What links energy transferred, charge flow, potential difference

A

Energy transferred= charge flow x potential difference

22
Q

Density

A

Mass / volume

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