Key Concepts of Physics Flashcards
1
Q
Distance formula
A
Speed x time (st)
2
Q
acceleration formula
A
Change in velocity/change in time ({v-u}/t)
3
Q
Force formula (newtons second law)
A
mass x acceleration (f=ma)
4
Q
weight formula
A
Mass x gravity (mg)
5
Q
change in gpe formula
A
Mass x gravity x change in height
6
Q
Kinetic energy formula
A
0.5 x mass x velocity^2 (0.5mv^2)
7
Q
efficiency formula
A
Useful energy/total energy
8
Q
Wave speed formula
A
Wavelength x frequency
9
Q
work done formula
A
Force x distance (moved in direction of force) (E=Fd)
10
Q
Power formula
A
Work done/time=energy transferred/time taken
11
Q
Moment of force formula
A
Force x perpendicular distance
12
Q
Energy transferred formula
A
Charge moved x pd (E=QV)
13
Q
Charge formula
A
Current x time (Q=It)
14
Q
voltage formula
A
Current x pd (P=IV)
15
Q
Electrical power formula
A
Current^2 x resistance (P=I^2R)
