Physics Equations and Unit Conservation Flashcards
How do you go from Kg to g?
- Times by 1,000
How do you go from g to kg?
- Divide by 1,000
How do you go from kJ to J?
- Times by 1,000
How do you go from J to kJ?
- Divide by 1,000
How do you go from cm to m?
- Divide by 100
How do you go from m to cm?
- Times by 100
How do you go from m to mm?
- Times by 1,000
How do you go from mm to m?
- Divide by 1,000
What’s the Equation For Kinetic Energy?
- 0.5 x Mass (kg) x (Speed)² (m/s)
Whats The Equation for Gravitational potential?
- Mass (kg) x Gravitational field Strength (N/kg) x Height (m)
Whats The Equation for elastic potential energy?
- 0.5 x Spring constant (N/m) x (Extension)² (m)
Whats The equation for change in thermal energy?
- Mass (kg) x Specific heat capacity (J/kg℃) x Temperature Change (℃)
What’s the Equation for Specific Heat capacity?
- Change in Thermal energy (J) ÷ Mass (kg) x Temperature change (
What are the 2 Equation for power?
- 1) Energy transferred (J) ÷ Time (s)
- 2) Work done (J) ÷ Time (s)
What’s the equation of a period of a wave?
- 1 ÷ Frequency
What’s the equation of Wave speed?
- Frequency (Hz) x Wavelength (m)
Write down the equation for speed?
- Speed = Distance (m) ÷ time (s)
Write down the equation for acceleration?
- Acceleration (m/s²) = Change in velocity (m/s) ÷ time taken (s)
What are the standard units for speed in physics and how many metres are in a km?
- The standard unit for speed in physics is mph.
- There are 1,000 metres in a km.
Write down the equation for Resultant force?
- Resultant Force (N) = Mass (Kg) x Acceleration (m/s²)
What’s the equation to work out weight?
- Weight (N) = Mass (Kg) x Gravitational Field strength (N/Kg)
Write Down the overall stopping distance?
- Stopping Distance = Thinking distance + Braking distance
What’s the Equation to work out The force of the spring?
- Force (N) = Spring Constant (N/m) x Extension (m)
