CBSE Class 7 Science Reproduction in Plants Quiz 1

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CBSE › Class 7 › Science › Reproduction in Plants

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1. A bus travels 54 km in 90 minutes. The speed of the bus is

A 0. 6 m/s B 10 m/s C 5. 4 m/s D 3. 6 m/s

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

A S = D T B T = \(\frac{S}{D}\) C S = \(\frac{1}{T}\) × D D S = \(\frac{T}{D}\)

3. Observe the figure given below:

A A to B and back to A B O to A, A to B and B to A C B to A, A to B and B to O D A to B

4. Nearly all the clocks make use of

A straight line motion B periodic motion C random motion D circular motion

5. A simple pendulum takes 42 sec. to complete 20 oscillations. What is its time period?

A 2. 1 s B 4. 2 s C 21 s D 8. 40 s

6. Time period of a simple pendulum depends upon its

A weight of bob B length C both (a) and (b) D None of these

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

A A leaking tap B Simple pendulum C Shadow of an object during the day D Blinking of eyes

8. On which axis is dependent variable represented?

A x-axis B y-axis C On any axis D Depends on the data

9. The correct symbol to represent the speed of an object is:

A 5 m/s B 5 mp C 5 m/s D 5 s/m

10. 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. His average speed in km/h is

A 8. 3 B 7. 2 C 5 D 3. 6

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