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Physics Equations > Physics Equations (from memory) > Flashcards

Physics Equations (from memory) Flashcards

Equations you are required to be able to recall and apply.

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1
Q

What is the Earth’s gravitational field strength? (Equation AND actual Numerical value(s))

A
  • Weight / Mass

* 10 / 9.8 / 9.81

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2
Q

Equation for Weight?

A

Mass x Gravitational Field Strength

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3
Q

Work Done? (2 ways)

A
  • Force x Distance

* Power x Time

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4
Q

How could you find spring constant?

A

Force applied to the spring / extention

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5
Q

How would you find extension?

A

Force applied to the spring / spring constant

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6
Q

How do you calculate the force applied to a spring?

A

Spring constant x Extension

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7
Q

What are the 3 equations for force?

A
  • Work Done / Distance
  • Moment of a Force /Distance
  • Pressure x Area
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8
Q

Density?

A

Mass / Volume

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9
Q

Volume?

A

Mass / Density

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10
Q

Pressure?

A

Force / Area

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11
Q

How would you find the area of a surface?

A

Force Applied / pressure

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12
Q

How would you find speed?

A

Distance / Time

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13
Q

Resultant Force?

A

Mass x Acceleration

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14
Q

What are the 2 ways to find acceleration?

A
  • Change in Velocity / Time taken

* Resultant Force / Mass

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15
Q

How could you find Velocity? (2/3 ways)

A
  • Acceleration x Time taken (finds change in Velocity)
  • √Kinetic Energy / (0.5 x Mass)

• Momentum / Mass [HIGHER TIER ONLY]

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16
Q

Kinetic Energy?

A

0.5 x Mass x (Velocity)²

17
Q

Gravitational Potential Energy?

A

Mass x Gravitational Field Strength x Height

18
Q

State how to find the height of something

A

Gravitational Potential Energy / (Mass x Gravitational Field Strength)

19
Q

Energy Transfer? (4 ways)

A
  • Power x Time
  • Charge Flow x Potential Difference
  • Useful Out Put Energy Transfer / Efficiency (total input energy transfer)
  • Total Input Energy Transfer x Efficiency (useful output energy transfer)
20
Q

Momentum? [HIGHER TIER ONLY]

A

• Mass x Velocity

21
Q

Wavespeed?

A

Frequency x Wavelength

22
Q

Wavelength?

A

Wavespeed / Frequency

23
Q

Frequency?

A

Wavespeed / Wavelength

24
Q

What are the 2 ways to find charge flow?

A
  • Current x Time

* Energy Transferred / Potential Difference

25
Q

List the 4 ways to find current

A
  • Charge Flow / Time
  • Potential Difference / Resistance
  • Power / Potential Difference
  • √Power / Resistance
26
Q

Potential Difference? (3 ways)

A
  • Current x Resistance
  • Power / Current
  • Energy Transferred / Charge Flow
27
Q

Resistance? (2 ways)

A
  • Potential Difference / Current

* Power / (Current)²

Physics Equations (2 decks)

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