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Learning Intention: To understand how to calculate the distance - speed - time.
Success Criteria:
Can successfully calculate distance - speed - time.
Copy the following formular:
Distance
Distance
The distance between two points on a map can be found by measuring the distance on the map and then converting it from centimetres to kilometres and/or metres. Most students do this by using the map’s linear scale, which will work for both printed and digital documents.
There are several ways to measure the distance between two points on a map. Some students use a length of string, while others use a pair of dividers. The following methods are more likely to be accurate because they make it easier to work around curves and sharp corners.
Take a look at this example:
Activity
Activity
Complete the following questions:
Question 1: If a cyclist travels at an average speed of 18 km/h, how long will it take to cover a distance of 27 km?
A) 1 hour
B) 1 hour and 15 minutes
C) 1 hour and 30 minutes
D) 2 hours
Question 2: A car travels 150 km in 2.5 hours. What is the car's average speed?
A) 50 km/h
B) 55 km/h
C) 60 km/h
D) 65 km/h
Question 3: How far will you travel if you walk for 2 hours at a speed of 4 km/h?
A) 6 km
B) 8 km
C) 10 km
D) 12 km
Question 4: If a train is traveling at a speed of 90 km/h, how long will it take to cover a distance of 135 km?
A) 1 hour
B) 1 hour and 15 minutes
C) 1 hour and 30 minutes
D) 2 hours
Question 5: A runner maintains a steady pace of 10 km/h for a 12 km race. How long will it take the runner to finish?
A) 1 hour
B) 1 hour and 10 minutes
C) 1 hour and 12 minutes
D) 1 hour and 20 minutes
(Teachers answers in the collapsible)
Answers:
1: C) 1 hour and 30 minutes
(Time = Distance / Speed = 27 km / 18 km/h = 1.5 hours = 1 hour and 30 minutes)
2: C) 60 km/h
(Speed = Distance / Time = 150 km / 2.5 hours = 60 km/h)
3: B) 8 km
(Distance = Speed × Time = 4 km/h × 2 hours = 8 km)
4: C) 1 hour and 30 minutes
(Time = Distance / Speed = 135 km / 90 km/h = 1.5 hours = 1 hour and 30 minutes)
5: B) 1 hour and 12 minutes
(Time = Distance / Speed = 12 km / 10 km/h = 1.2 hours = 1 hour and 12 minutes)
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