The composition of air can be best represented by drawing a
Pie chart
Bar graph
Line graph
Histogram
An athlete attains a maximum speed of 36 km / h . This speed is equal to
5 m / s
10 m / s
15 m / s
20 m / s
A student draws a distance - time graph for a moving scooter and finds that a section of the graph is a horizontal line parallel to the time axis. Which of the following conclusion is correct about this section of the graph
The scooter has uniform speed in this section
The distance travelled by scooter is the maximum in this section
The distance travelled by the scooter is the minimum in the section
The distance travelled by the scooter is zero in this section
In relation to the road, the girl on the moving bicycle is
At rest
In motion
In oscillatory motion
In rotatory motion
Speedometer is not fixed for this
Car
Scooter
Bus
Bicycle
The basic unit of speed is
km/ min
m/min
km/h
m/s
The clocks and watches which are used for measuring time are based on
Rectilinear motion
Circular motion
Periodic motion
Rotational motion
Motion of a mango falling from a tree is
Oscillatory motion
Translatory motion
Rotatory motion
Which among the following is not a fundamental quantity?
Velocity
Length
Mass
Time
The most appropriate unit for expressing the speed of a space rocket is
m / s
m / h
Km / h
Km / min
