Equations Flashcards
What is the equation for density?
Density (kg/m3) = mass (kg) / volume (m3)
What is the equation for distance travelled?
Distance (m) = speed (m/s) * time (s)
What is the equation for acceleration?
Acceleration (m/s2) = change in velocity (m/s) / time (s)
What is the equation for kinetic energy?
Kinetic energy (J) = 0.5 * mass (kg) * speed (m/s)2
What is the equation for force?
Force (N) = mass (kg) * acceleration (m/s2)
What is the equation for momentum?
Momentum (kgm/s) = mass (kg) * velocity (m/s)
What is the equation for work done?
Work done (J) = force (N) * distance travelled (m)
What are the 3 equations for power?
Power (W) = work done (J) / time (s)
Power (W) = potential difference (V) * current (A)
Power (W) = current (A)2 * resistance (Ω)
What is the equation for force exerted by a spring?
Force (N) = 0.5*extension (m) * spring constant (N/m)
What is the equation of elastic potential energy?
Elastic potential energy (J) = 0.5 * spring constant (N/m) * extension (m)2
What is the equation for gravity force?
Gravity force (N) = mass (kg) * gravitational field strength (N/kg)
What is the equation for potential energy in a gravitational field?
Potential energy (J) = mass (kg) * height (m) * gravitational field strength (N/m)
What is the equation for pressure?
Pressure (Pa) = force on a surface (N) * surface area of surface (m2)
What is the equation for charge?
Charge (C) = current (A) * time (s)
What is the equation for potential difference?
Potential difference (V) = current (A) * resistance (Ω)
