Physics Flashcards
(19 cards)
1
Q
Average speed
A
Distance/time
2
Q
Average velocity
A
Displacement/time
3
Q
Acceleration
A
Change in velocity/time
4
Q
Force
A
Mass * acceleration
5
Q
Weight on earth
A
Mass * 10m/s
6
Q
Momentum
A
Mass * velocity
7
Q
Density
A
Mass/volume
8
Q
Hookes Law
A
Force= constant * extension
9
Q
Pressure
A
Force/area
10
Q
Pressure under water
A
Height* density * gravitational field strength
11
Q
Moment of a force
A
Force * perpendicular distance from pivot
12
Q
Work
A
Force * distance
13
Q
Power
A
Work/time
14
Q
Kinetic energy
A
1/2 * mass * velocity
15
Q
Gravitational potential energy
A
Mass * gravitational field strength * height
16
Q
Efficiency (%)
A
Useful energy output / total energy input
17
Q
Energy
A
Mass * specific heat capacity * change in temperature
18
Q
Wave speed
A
Frequency * wavelength
19
Q
Refractive index
A
Speed of light in vacuum/ speed of light in material
