Compound Measures (Speed, Density, Pressure)Cambridge IGCSE Maths: Subtopic test
10 questions, 26 marks
Cambridge IGCSE Maths
Compound Measures (Speed, Density, Pressure)
Total 26 marks
Name
Class
Date
- 1A cyclist travels 45 km in 2.5 hours at a constant speed.(a)Find the cyclist's average speed.[1 mark]
- A15 km/h
- B18 km/h
- C20 km/h
- D22.5 km/h
(b)At the same speed, how far would she travel in 4 hours?[1 mark]- A60 km
- B66 km
- C72 km
- D80 km
(c)At the same speed, how long would it take to travel 63 km?[1 mark]- A3 hours
- B3.5 hours
- C4 hours
- D4.5 hours
Total for question 1: 3 marks
- 2A metal block has a mass of 540 g and a volume of 60 cm. A second block, made of the same material, has a volume of 85 cm.(a)Find the density of the metal block.[2 marks](b)Find the mass of the second block, which has a volume of 85 cm and is made of the same material.[2 marks]
Total for question 2: 4 marks
- 3A force of 250 N is applied over an area of 0.5 m. Meanwhile a tap fills a tank at a flow rate of 12 litres per minute.(a)Find the pressure exerted, using pressure = force area.[3 marks](b)Find how long the tap would take to fill an empty tank of capacity 90 litres, giving your answer in minutes and seconds.[3 marks]
Total for question 3: 6 marks
- 4A city has a population of 850000 people and covers an area of 340 km. A currency exchange booth converts money at a rate of 1 dollar to 3.67 units of local currency, charging a flat fee of 5 dollars per transaction.(a)Find the population density of the city, in people per km.[4 marks](b)A tourist exchanges 200 dollars. Find the amount of local currency received, given the flat fee is deducted first and the remaining dollars are then converted.[4 marks](c)A second city has an area of 280 km and a population density of 3200 people per km. Find its population, then find the combined population density of both cities together (total population divided by total area), correct to 1 decimal place.[5 marks]
Total for question 4: 13 marks
End of questions