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

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Question 4:

A bus travels in . The speed of the bus is

Question 5:

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

Question 6:

Observe Figure

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.

Question 7:

Fig. shows an 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

Question 8:

The correct symbol to represent the speed of an object is

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