Some Natural Phenomena Worksheet-5

Some Natural Phenomena Worksheet-5

1. Interaction of charges is called

(a) Lightning                                 (b) Electrical discharges

(c) Earthing                                   (d) None to these

2. The shaking of earth is called

(a) Tsunami                                   (b) Volcano

(c) Earthquake                              (d) None of these

3. Suppose you are in a car and it is raining heavily with thunderstorms. Then what is the best way to protect yourself from a possible thunder storm fall?

(a) Remain in the car

(b) Get out of the car and take cover under the car

(c) Run to the nearby tree

(d) Get out and stand under an electric pole

4. Lightning occurs due to

(a) Electric discharge                  (b) Rain

(c) Wind                                         (d) Lord Varun's anger.

5. Electrical charge can be transferred from a charged object to another through

(a) Vacuum       (b) Air                (c) Insulator      (d) Conductor

6. Which of the following is the best thing to do during heavy lightning?

(a) Lying on the ground in an open place

(b) Going into the nearest water body

(c) Staying indoors away from metallic doors or windows

(d) Standing under a tall tree

7. A lightning conductor installed in a building

(a) Does not allow the lightning to fall on the building

(b) Repels the lightning

(c) Forces the lightning to fall in an area where there are no building

(d) Conducts electric charge to the ground when lightning strikes the building

8. A glass rod rubbed with silk

(a) Repels a plastic straw rubbed with polythene

(b) Attracts another glass rod rubbed with silk

(c) Attracts a plastic straw rubbed with polythene

(d) None of these

9. Lightning rods are made of

(a) Copper         (b) Plastic          (c) Bakelite        (d) Sand paper

10. The point of origin of an earthquake, from where the seismic waves are said to spread out is

(a) Fault point                               (b) Epicenter

(c) Focus point                              (d) None of these

Answer Key:

(1)-(a); (2)-(c); (3)-(a); (4)-(a); (5)-(d); (6)-(c); (7)-(d); (8)-(c); (9)-(a); (10)-(c)