Flashcards in Topic 3 - Speeding Up Deck (11):

1

## A snail crawls 10cm in 2mins. A slug creeps 6cm in 1mins. Which is faster?

### The slug

2

## How do you calculate an objects average speed?

### Average speed = distance travelled divided by time taken

3

## A man runs 100m in 20 seconds. How fast is he running?

### 100 divided by 20 = 5m/s

4

## A man runs 200m in 45s. How fast is he going?

### 200m divided by 45s = 4.4m/s

5

## A car takes 0.45s to travel through the first light gate and 0.54s to travel through the next light. Is it speeding up or slowing down?

### Slowing down

6

## What is Issac Newton’s first law?

###
Forces balanced:

2 possible states of motion - stationary or constant velocity

7

## What is Issac Newton’s second law?

###
Forces Unbalanced:

The object is either slowing down or speeding up

8

## What is constant velocity?

### When an object is moving the same direction at the same speed

9

## If a rockets thrust and the weight are the same what will happen?

### It will not move because it can’t fly if the weight is the exact same as the thrust.

10

## What do you call the force that slows things down in water?

### Drag

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