May Test Flashcards
(17 cards)
1
Q
Speed
A
Distance / time
2
Q
Acceleration
A
(V-U) / Time
3
Q
Velocity
A
Distance / time
4
Q
Momentum
A
Mass x velocity
5
Q
Force
A
Change in momentum / time
6
Q
Newtons 3rd Law
A
If A exerts a force on B, then B exerts an equal but opposite force on A
7
Q
Why are car safety features good
A
They increase the time it takes to change momentum
8
Q
Frequency
A
Velocity / wavelength
9
Q
Oscillation
A
Vibration
10
Q
Frequency
A
1 / time
11
Q
Diffraction
A
Spreading out of waves when they pass through a gap
12
Q
Efficiency
A
Useful energy / total energy
13
Q
Distance travelled
A
Speed x time
14
Q
Resultant force
A
Mass x acceleration
15
Q
Newtons 1st Law
A
An object will remain stopped unless an unbalanced force acts upon it
16
Q
Weight
A
Mss x gravitational field strength
17
Q
Gradient
A
Change in vertical / change in horizontal
