NCERT Class VII Science Solutions: Chapter 13-Motion and Time Part 2

Download PDF of This Page (Size: 203K)

Question 4:

A bus travels in . The speed of the bus is

Answer: B

Question 5:

If we denote speed by S. distance by D and time by T, the relationship between these quantities is

Answer: C

Question 6:

Observe Figure

As showing in images is a simple pendulum

Simple Pendulum

As showing in images is a simple pendulum

The time period of a simple pendulum is the time taken by it to travel from

  1. A to B and back to A.

  2. O to A, A to B and B to A.

  3. B to A, A to B and B to O.

  4. A to B.

Answer: A

Question 7:

Fig. shows an oscillating pendulum.

As showing in images is a oscillating pendulum

Shows an Oscillating Pendulum

As showing in images is a oscillating pendulum

Time taken by the bob to move from A to C is and from C to O is . The time period of this simple pendulum is

Answer: D

Question 8:

The correct symbol to represent the speed of an object is

Answer: A

Question 9:

Boojho walks to his school which is at a distance of 3 km from his home in 30 minutes. On reaching he finds that the school is closed and comes back by a bicycle with his friend and reaches home in 20 minutes. Ills average speed in km/h is

  1. 8.3

  2. 7.2

  3. 5

  4. 3.6

Answer: B

Developed by: