If an object covers equal distances in equal intervals of time, its speed is said to be uniform.
True
False
When two bodies are moving in the same direction, their relative speed is equal to the sum of their speeds.
True
False
The average speed of a body is the product of total distance covered and the total time taken by the body.
True
False
The average speed of a body is the product of the total distance covered and the total time taken.
True
False
A car covers a distance of 80 km in 5 h, so the speed of the car is 40 km h-1.
True
False
The distance covered by a body in unit time is called its speed.
True
False
Click the correct answer.
A cyclist travels at a speed of 18 km h-1. How much distance will he cover in 40 min?
160 km
16 km
120 km
12 km
The speed of a train is 120 km h-1. In how much time will the train cover 420 km?
3.5 hours
2.5 hours
2.4 hours
4.5 hours
A truck covers a distance of 40 km in 30 min. What is the speed of the truck in km h-1?
80 km h-1
75 km h-1
83 km h-1
70 km h-1
In how many hours can a distance of 57.6 km be covered at a speed of 8 m s-1?
2 hours
5 hours
9 hours
11 hours
A 180 m long train crosses a 240 m long bridge in 12 seconds. What is the speed of the train in km h-1?
126 km h-1
122 km h-1
128 km h-1
118 km h-1
How many kilometres can a bike cover in 4 minutes at a speed of 63 km h-1?
4.2 km
3.7 km
3.6 km
4.1 km
A 130 m long train crosses a person in 4 s. What is the speed of the train in m s-1?
32.5 m s-1
31.9 m s-1
30.7 m s-1
32.25 m s-1
A boat travels with a speed of 17 km h-1 in still water. If the speed of the stream is 7 km h-1, what is the time taken by the boat to go 72 km downstream?
3 hours
2 hours
5 hours
7 hours
Click the correct answer.
An airplane travels 700 km in 50 minutes. Its speed is
.
840 km h-1
745 km h-1
700 km h-1
A 220 m long train, travels at a uniform speed of 36 km h-1. It will take
seconds to pass an electric pole.
22
25
28
A boat can travel with a speed of 13 km h-1 in still water. If the speed of the stream is 7 km h-1, then the speed of the boat upstream is
.
6 km h-1
4 km h-1
20 km h-1
Rohan crosses a platform in 5 minutes with a speed of 1.5 m s-1. The length of the platform is
.
450 m
420 m
380 m
If the total distance covered by a body is 2,500 m and the total time taken is 125 s, then its average speed is
m s-1.
20
23
32
A car runs at a speed of 220 m min-1. The distance it would cover in 2 hours is
.
26,400 m
22,450 m
24,880 m
The distance covered by a body in unit time is called its
.
speed
average speed
relative speed
speed is the speed of one object with respect to another object.
