Equations Flashcards
Memorise equations
1
Q
Distance travelled
A
Average speed x time
2
Q
Acceleration
A
Change in velocity ÷ time taken
3
Q
Force
A
Mass x acceleration
4
Q
Weight
A
Mass x gravitational field strength
5
Q
Efficiency
A
Useful energy transferred by device ÷ total energyvsupplied to the device
6
Q
MOMENTUM
A
MASS X VELOCITY
7
Q
Wave speed
A
Frequency x wave length
8
Q
Wave speed
A
Distance ÷ time
9
Q
Density
A
Mass ÷ volume
10
Q
Work done
A
Force x distance moved in direction of the force
11
Q
Change in gravitational potential energy
A
Mass X gravitational field strength x change in vertical height
12
Q
Kinetic energy
A
0.5 x MASS X (speed)squared
13
Q
Power
A
Work done ÷ time taken
14
Q
Energy transferred
A
charge moved x potential difference
15
Q
Charge
A
Current x time
