EoY 10 equations Flashcards

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1
Q

Average speed =

A

distance / time

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2
Q

Acceleration =

A

v - u / t

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3
Q

final velocity =

A

v2 = u2 + 2as

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4
Q

Force =

A

Mass x acceleration

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5
Q

Kinetic energy =

A

1/2 x mass x speed2

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6
Q

Weight

A

mass x gravitational field strength

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7
Q

Efficiency

A

useful output energy / total output energy x 100

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8
Q

Work done =

A

Force x distance

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9
Q

GPE =

A

mass x gravity x height

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10
Q

Pressure =

A

force / area

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11
Q

Density=

A

mass / volume

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12
Q

Critical angle =

A

sin-1 (1/refractive index)

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13
Q

Snell’s law

A

n = sin i / sin r

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14
Q

Power =

A

Work done / time taken

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