GCSE 1-9 physics formulae and units Flashcards
1
Q
speed =
A
distance ÷ time
2
Q
acceleration (a) =
A
change in velocity (v-u) ÷ time taken (t)
3
Q
force (F) =
A
mass (m) x acceleration (a)
4
Q
weight (W) =
A
mass (m) x gravitational field strength (g)
5
Q
momentum (p) =
A
mass (m) x velocity (v)
6
Q
change in gravitational potential energy (ΔGPE) =
A
mass (m) x gravitational field strength (g) x change in vertical height (Δh)
7
Q
kinetic energy (KE) =
A
1/2 x mass (m) x (speed)^2 (v^2)
8
Q
efficiency =
A
(useful energy transferred by the device) ÷ (total energy supplied by the device)
9
Q
wave speed (v) =
A
frequency (f) x wavelength (λ)
10
Q
wave speed 2 (v) =
A
distance (x) ÷ time (t)
11
Q
speed unit
A
m/s (metres per second)
12
Q
distance unit
A
m (metres)
13
Q
time unit
A
s (seconds)
14
Q
acceleration unit
A
m/s^2 (metres per second squared)
15
Q
velocity unit
A
m/s (metres per second)
