Year 8

# Displacement-time graphs (Part 2)

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## Lesson details

### Key learning points

- In this lesson, we will think further about displacement-time graphs and when the relationship may or may not be linear.

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### 5 Questions

Q1.

Fill in the gap: Starting from home, Sue walked for 2 km at a steady speed of _____ km per hour.

0.1 km/h

0.17 km/hr

2 km/h

Q2.

Fill in the gap: After 20 minutes, Sue stopped to chat for _____ minutes.

20

30

50

Q3.

Fill in the gap: Sue then continued at a steady speed of _____ km per hour until she reached the shops.

0.1 km/h

0.17 km/h

2 km/h

Q4.

Bob and Sue reach the shops at what time?

9:00

9:38

9:53

Q5.

Assuming Bob and Sue both start their journeys from home, who lives furthest from the shops?

Sue

### 5 Questions

Q1.

What is the key difference between a distance-time graph and a displacement time graph?

Speed can only be worked out from a distance time graph

The correct answer is not mentioned above

There are no differences

Q2.

Which option below shows the journey represented by the graph?

Option 1

Option 2

Option 4

Q3.

Which option below shows the journey represented by the graph?

Option 2

Option 3

Option 4

Q4.

Which option below shows the journey represented by this graph?

Option 1

Option 2

Option 3

Q5.

Which ONE of the following statements could be TRUE about the graph below?

A car has an average speed of 15 km/h

A car has an average speed of 20 km/h

A car has an average speed of 50 km/h