equations Flashcards
weight (N) =
mass (kg) X gravitational field strength (N/kg)
mass (kg) =
weight (N) / gravitational field strength (N/kg)
gravitational field strength (N/kg) =
weight (N) / mass (kg)
work done (J) =
force (N) X distance (m)
force (N) =
work done (J) / distance (m)
distance (m) =
work done (J) / force (N)
force (N) (extension equation)
spring constant (N/m) x extension (m)
elastic potential energy (J) =
1/2 X spring constant (N/M) X extension (squared) (m)
distance travelled (m) =
speed (m/s) X time (s)
acceleration (m/s^2) =
change in velocity (m/s) / time (s)
final velocity^2 (m/s) - initial velocity^2 (m/s) =
2 X acceleration X distance
stopping distance=
thinking distance + braking distance
momentum ( kg m/s) =
mass(kg) X velocity (m/s)
period (s) =
1/ frequency (Hz)
wave speed(m/s) =
frequency (Hz) X wavelength (m)
