# Y9 Stopping Distance

Match the unit to the quantity.
Distance
Time
Power
Acceleration
Mass
Volume
Force
Energy
Speed
Current
Frequency
Resistance
Hz
N
s
m
kg
J
A
W
m/s
m/s2
g/cm3
ohms
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Slide 1: Drag question
ScienceLower Secondary (Key Stage 3)

This lesson contains 27 slides, with interactive quizzes, text slides and 1 video.

Lesson duration is: 50 min

## Items in this lesson

Match the unit to the quantity.
Distance
Time
Power
Acceleration
Mass
Volume
Force
Energy
Speed
Current
Frequency
Resistance
Hz
N
s
m
kg
J
A
W
m/s
m/s2
g/cm3
ohms

#### Slide 1 -Drag question

Motion

#### Slide 2 -Slide

Stopping Distance
Learning objective
• Describe the difference between thinking and braking distance.
• Calculate stopping distance from thinking and braking distance.

#### Slide 3 -Slide

You are driving along a road. A hazard appears and you must apply the brakes. The distance covered by the car from the moment the hazard appears until the car stops is called the stopping distance.
You want the stopping distance to be as short as possible to avoid collisions and injuries.

#### Slide 5 -Slide

Thinking distance is affected by things that may improve or worsen your perception or reflexes

#### Slide 6 -Slide

Braking distance is affected by the condition of the road or your vehicle.

#### Slide 7 -Slide

What
will affect...
Thinking Distance
Braking
Distance

#### Slide 9 -Slide

The wear on the brake pads.
A
Thinking
B
Braking

#### Slide 10 -Quiz

Snowy or icy conditions
A
Thinking
B
Braking

#### Slide 11 -Quiz

Alcohol consumption
A
Thinking
B
Braking

A
Thinking
B
Braking

#### Slide 13 -Quiz

Using a mobile phone
A
Thinking
B
Braking

Tyre condition
A
Thinking
B
Braking

#### Slide 15 -Quiz

Distractions in the car
A
Thinking
B
Braking

#### Slide 16 -Quiz

Which car will have the longest stopping distance at the following speeds?
A
10 m/s
B
30 m/s
C
15 m/s
D
35 m/s

#### Slide 17 -Quiz

Which car will have the longest stopping distance at the following speeds?
A
8 m/s
B
21 m/s
C
2.2 m/s
D
13 m/s

#### Slide 18 -Quiz

Which car will have the longest stopping distance in the following conditions?
A
B
C

#### Slide 19 -Quiz

Which car will have the longest stopping distance with the following masses?
A
1000 kg
B
2000 kg
C
3000 kg
D
1500 kg

#### Slide 20 -Quiz

The thinking distance of the driver was 2m, drag the car to the correct thinking distance.

#### Slide 21 -Drag question

The thinking distance was 6m, the braking distance was 8m. What was the total stopping distance?

#### Slide 22 -Drag question

The stopping distance of the car was 11m. The braking distance was 3m. Drag the car to the thinking distance.

#### Slide 23 -Drag question

The car is travelling at 7 m/s. The driver takes 2 seconds to react, how far did the car travel in that time?

#### Slide 24 -Drag question

The car is travelling at 2.5 m/s. The driver takes 2 seconds to react, how far did the car travel in that time?

#### Slide 25 -Drag question

The car is travelling at 2 m/s. The driver takes 4 seconds to react, how far did the car travel in that time?