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