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Phsyics > Formulas > Flashcards

Formulas Flashcards

1
Q

What is the formula for work?

A

Work = force * distance moved in the direction of applied force.

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2
Q

How do you figure out kinetic energy?

A

KE = 1/2 * mass * velocity²

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3
Q

How do you find out GPE (Gravitational Potential Energy)?

A

GPE = mass * gravitational field strength * height

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4
Q

What is the formula for power?

A

Power = work done / time taken
P = E/T

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5
Q

What is the formula for a “moment”?

A

Moment = force (N) * perpendicular distance from pivot (m)

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6
Q

What does λ mean?

A

It means wavelength. Greek letter for lambda

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7
Q

What is the formula wavelength (λ )?

A

λ = velocity / frequency

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8
Q

What is the formula for time period?

A

Time period = 1/ Frequency

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9
Q

What is the formula for distance?

A

Distance = speed * time

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10
Q

What is the formula for acceleration?

A

acceleration = final velocity - initial velocity
/ time

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11
Q

What is the formula for force?

A

Force = mass * acceleration

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12
Q

What is the speed of sound in air?

A

330 - 343 m/s

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13
Q

What is the speed of light?

A

3 * 10⁸ m/s

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14
Q

What is the formula for energy?

A

E = MC²
Energy = Mass * Speed of light⁸

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15
Q

What is the formula for efficiency?

A

Efficiency = useful power out / total power in

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16
Q

Formula for Pressure?

A

Pressure = Force / Area

17
Q

The formula for elastic potential energy?

A

Ee = 1/2 * spring constant (N/m) * extension(metres)

18
Q

Pressure in fluids formula?

A

P = density * GFS(gravitational field strength) * height/depth

19
Q

What is the formula for force exerted on a spring?

A

F = k * x
Force = spring constant * extension

20
Q

How can you calculate weight?

A

weight = mass * gravitational field strength

21
Q

Equation for specific heat capacity?

A

Q = m * c * change in T
Heat energy = mass * specific heat capacity * change in temp

22
Q

Formula for voltage?

A

V = IR
Voltage = Current * resistance

Phsyics (2 decks)

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