Flashcards
PHYSICS EQUATIONS
Flashcards do conjunto (26)
- 1What is the equation for kinetic energy?Kinetic energy (J) = (0.5 x mass(kg)) x (speed(m/s))^2
- 2What is the equation for elastic potential energy?Elastic potential energy (J) = (0.5 x spring constant(N/m)) x (extension(m))^2
- 3What is spring constant?The stiffness of an elastic material.
- 4What is the equation for change in thermal energy?Change in thermal energy (J) = Mass (kg) x specific heat capacity (J/kg°C) x temperature change (°C)
- 5What is the equation for gravitational potential energy?Gravitational potential energy (J) = Mass (kg) x gravitational field strength (N/kg) x height (m)
- 6What are the 2 equations for power?Power (W) = Energy transferred (J)/ time (s)
or
Power (W) = Work done (J)/ time (s) - 7What are the 2 equations for efficiencyEfficiency (no unit, measured in %) = Useful output energy transfer (J)/ total input energy transfer (J)
or
Efficiency (no unit, measured in %) = Useful power output (W)/ total power input (W) - 8What is the equation for charge flow?Charge flow (C) = Current (A) x time (s)
- 9What is the equation for potential difference?Potential difference (V) = Current (A) x resistance (Ω)
- 10What are the 2 equations for power (in circuits)Power (W) = Potential difference (V) x current (A)
Or
Power (W) = (Current (A))^2 x resistance (Ω) - 11What are the 2 equations for energy transferred?Energy transferred (J) = Power (W) x time (s)
or
Energy transferred (J) = Charge flow (C) x potential difference (V) - 12What is the coil equation?Potential difference across primary coil (V) x current in primary coil (A) = Potential difference across secondary coil (V) x current in secondary coil (A)
- 13What is the the equation for density?Density (kg/m^3 or g/cm^3 (ask teacher)) = Mass (kg)/volume (m^3)
- 14What is the equation for thermal energy needed for a change of state?Thermal energy needed for a change of state (J) = Mass (kg) x specific latent heat (J/kg)
- 15What is the equation for weight?Weight (N) = Mass (kg) x gravitational field strength (N/kg)
- 16What is the equation for work done?Work done (J) = Force (N) x distance (m) (along the line of action of the force)
- 17What is the equation for force in terms of elasticity?Force (N) = Spring constant (N/m) x extension (m)
- 18What is the equation for distance travelled?Distance travelled (M) = Speed (m/s) x time (s)
- 19What is the equation for acceleration?Acceleration (m/(s^2)) = Change in velocity (m/s)/time taken (s).
- 20What is the equation that links velocity, acceleration and distance?(final velocity (m/s))^2 - (initial velocity (m/s))^2 = 2 x acceleration (m/(s^2)) x distance (m)
- 21What is the equation for resultant force?Resultant force (N) = Mass (kg) x acceleration (m/(s^2))
- 22What is the equation for momentum?Momentum (kg m/s) = mass (kg) x velocity (m/s)
- 23What is the equation for a period (the interval of time it takes for a motion to repeat)?Period (s) = 1/frequency (Hz)
- 24What is the equation for wave speed?Wave speed (m/s) = Frequency (Hz) x wavelength (m)
- 25What is the equation for the force on a conductor (at right angles to a magnetic field) carrying a current?Force on a conductor (at right angles to a magnetic field) carrying a current = magnetic flux density x current x length
- 26What is the equation for specific heat capacity?Specific heat capacity (J/kg°C) = Change in thermal energy (J)/(mass (kg) x temperature change (°C))
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- GCSE Core Science FlashCards sobre PHYSICS EQUATIONS, criado por Ilan Craig em 05-05-2024.
- Criado por
- Ilan Craig
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