UNIT 1 speed and velocity -- m/s acceleration -- m/s^2 time -- seconds distance -- meter mass -- kg force -- Newtons (N) weight (is a force) -- Newtons (N) gravitational field strength -- (N/kg) 9.8 or 10
average speed, distance moved, time taken
v = s / t
average speed, v = distance moved, s / time taken, t
acceleration, change in velocity, time taken
a = ( v - u ) / t
acceleration, a = change in velocity, (v - u) / time taken, t
final speed, initial speed, acceleration, distance moved
v² = u² + (2 * a * s)
(final speed)² = (initial speed)² + (2 * acceleration * distance moved)
area under velocity-time graph = distance traveled
distance traveled = ½ * base * height
force, mass, acceleration
f = m * a
force = mass * acceleration
weight, mass, gravitational field strength
W = m * g
weight = mass * gravitational field strength