Veera Bala Rastogi and Shalini Mahajan Solutions for Chapter: Motion and Time, Exercise 4: PRACTICE TIME

The motion of the moon around the earth is called _____.

(Choose from: Revolution/Rectilinear motion)

The fast moving body has higher _____.

(speed/displacement)

_____ is the ancient time measuring device based on the size and position of shadow formed by the sun.

A _____ (sundial / stopwatch) can measure time interval up to one hundredth of a second.

The position of bob of a simple pendulum at rest is called its _____ (mean/extreme) position.

The intersecting point of two axes on a graph paper is called its _____.

You often see cars on a crowded road and people jogging in the park. Do you think there is any difference in the motion? State the type of motion of a car on a crowded road and a person jogging in the park.

An ant is moving with a constant speed of $2 \mathrm{m}/\min$. What distance will it travel in $45$ seconds? Calculate the distance in $\mathrm{m}, \mathrm{cm}$ and $\mathrm{km}$.