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Flashcards in Physics Equations (from memory) Deck (27):
1

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

• Weight / Mass
• 10 / 9.8 / 9.81

2

Equation for Weight?

Mass x Gravitational Field Strength

3

Work Done? (2 ways)

• Force x Distance
• Power x Time

4

How could you find spring constant?

Force applied to the spring / extention

5

How would you find extension?

Force applied to the spring / spring constant

6

How do you calculate the force applied to a spring?

Spring constant x Extension

7

What are the 3 equations for force?

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

8

Density?

Mass / Volume

9

Volume?

Mass / Density

10

Pressure?

Force / Area

11

How would you find the area of a surface?

Force Applied / pressure

12

How would you find speed?

Distance / Time

13

Resultant Force?

Mass x Acceleration

14

What are the 2 ways to find acceleration?

• Change in Velocity / Time taken
• Resultant Force / Mass

15

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

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

• Momentum / Mass [HIGHER TIER ONLY]

16

Kinetic Energy?

0.5 x Mass x (Velocity)²

17

Gravitational Potential Energy?

Mass x Gravitational Field Strength x Height

18

State how to find the height of something

Gravitational Potential Energy / (Mass x Gravitational Field Strength)

19

Energy Transfer? (4 ways)

• 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

Momentum? [HIGHER TIER ONLY]

• Mass x Velocity

21

Wavespeed?

Frequency x Wavelength

22

Wavelength?

Wavespeed / Frequency

23

Frequency?

Wavespeed / Wavelength

24

What are the 2 ways to find charge flow?

• Current x Time
• Energy Transferred / Potential Difference

25

List the 4 ways to find current

• Charge Flow / Time
• Potential Difference / Resistance
• Power / Potential Difference
• √Power / Resistance

26

Potential Difference? (3 ways)

• Current x Resistance
• Power / Current
• Energy Transferred / Charge Flow

27

Resistance? (2 ways)

• Potential Difference / Current
• Power / (Current)²