NCERT Class VII Science Solutions: Chapter 13-Motion and Time Part 1

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MULTIPLE CHOICE QUESTIONS

Question 1:

Which of the following cannot be used for measurement of time?

  1. A leaking tap.

  2. Simple pendulum.

  3. Shadow of an object during the day.

  4. Blinking of eyes.

Answer: D

Question 2:

Two clocks A and B are shown in Figure Clock A has an hour and a minute hand, whereas clock B has an hour hand, minute hand as well as a second hand. Which of the following statement is correct for these clocks?

  1. A time interval of 30 seconds can be measured by clock A.

  2. A time interval of 30 seconds cannot be measured by clock B.

  3. Time interval of 5 minutes can be measured by both A and B.

  4. Time interval of 4 minutes 10 seconds can be measured by clock A.

Two clocks A and B are shown in Figure

Two Clocks a and B.

Two clocks A and B are shown in Figure

Answer: C

Question 3:

Two students were asked to plot a distance-time graph for the motion described by Table A and Table B.

Table A

Distance-Time Graph (Q)
distance-time graph (Q)

Distance

Moved

(M)

0

10

20

30

40

50

Time

(minutes)

0

2

4

6

8

10

Table B

Distance-Time Graph (A)
distance-time graph (A)

Distance

Moved

(M)

0

5

10

15

20

25

Time

(minutes)

0

1

2

3

4

5

As showing in images is a distance-time graph of the uniform

Distance-Time Graph of the Uniform

As showing in images is a distance-time graph of the uniform

The graph given in Figure is true for

  1. Both A and B.

  2. A only.

  3. B only.

  4. Neither A nor B.

Answer: A

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