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Flashcards in May Test Deck (17)
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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