2.2 and 3.1 Nature of Quantities and Motion Flashcards Preview

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Flashcards in 2.2 and 3.1 Nature of Quantities and Motion Deck (25)
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1

Is mass scalar of vector?

Scalar

2

Is density a scalar or a vector quantity?

Scalar

3

Is volume a scalar or a vector quantity?

Scalar

4

Is distance a scalar or a vector quantity?

Scalar

5

Is speed a scalar or a vector quantity?

Scalar

6

Is energy a scalar or a vector quantity?

Scalar

7

Is power a scalar or a vector quantity?

Scalar

8

Is weight a scalar or a vector quantity?

Vector

9

Is pressure a scalar or a vector quantity?

Vector

10

Is impulse a scalar or a vector quantity?

Vector

11

Is displacement a scalar or a vector quantity?

Vector

12

Is velocity a scalar or a vector quantity?

Vector

13

Is acceleration a scalar or a vector quantity?

Vector

14

Is momentum a scalar or a vector quantity?

Vector

15

Define Newton.

Force is 1N when 1kg of mass has an acceleration of 1ms-2

16

Why can the equation F = ma not be applied to particles travelling very close to the speed of light?

Mass of particles increases as speed gets closer to speed of light.

17

What factors affect thinking distance?

-higher speed
-tiredness
-alcohol and drugs
-distractions
-age

18

What factors increase braking distance?

-higher speed
-poor road conditions
-bad brakes
-bad tyres
-mass of car

19

Equation for thinking distance?

Reaction time x speed of car

20

What is impulse?

Change in momentum

21

What is the equation for impulse?

Force x time

22

What is the equation for impulse?

Force x time

23

Define braking distance

The distance travelled between when the brakes are applied and when the car stops

24

What's 1mph in ms?

0.447

25

Define velocity

Rate of change of displacement