Physics Equations (from memory) Flashcards
Equations you are required to be able to recall and apply.
What is the Earth’s gravitational field strength? (Equation AND actual Numerical value(s))
- Weight / Mass
* 10 / 9.8 / 9.81
Equation for Weight?
Mass x Gravitational Field Strength
Work Done? (2 ways)
- Force x Distance
* Power x Time
How could you find spring constant?
Force applied to the spring / extention
How would you find extension?
Force applied to the spring / spring constant
How do you calculate the force applied to a spring?
Spring constant x Extension
What are the 3 equations for force?
- Work Done / Distance
- Moment of a Force /Distance
- Pressure x Area
Density?
Mass / Volume
Volume?
Mass / Density
Pressure?
Force / Area
How would you find the area of a surface?
Force Applied / pressure
How would you find speed?
Distance / Time
Resultant Force?
Mass x Acceleration
What are the 2 ways to find acceleration?
- Change in Velocity / Time taken
* Resultant Force / Mass
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]
Kinetic Energy?
0.5 x Mass x (Velocity)²
Gravitational Potential Energy?
Mass x Gravitational Field Strength x Height
State how to find the height of something
Gravitational Potential Energy / (Mass x Gravitational Field Strength)
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)
Momentum? [HIGHER TIER ONLY]
• Mass x Velocity
Wavespeed?
Frequency x Wavelength
Wavelength?
Wavespeed / Frequency
Frequency?
Wavespeed / Wavelength
What are the 2 ways to find charge flow?
- Current x Time
* Energy Transferred / Potential Difference
