General Science

1. The value of acceleration due to gravity changes with

a. latitude.

b. depth.

c. altitude.

d. all of these.

2. When a stone is thrown on a window pane, the glass is broken into pieces. However, when a high speed bullet passes. through the. window pane, it makes a clean hole. Why ?

a. Because the bullet is made of a special metal.

b. Because the particles of glass near the hole, cannot share the very quick motion of the bullet and remain undisturbed.

c. Because of both of these.

d. Because of none of these.

3. Which of the following is the Newton's law of motion?

a. Every body continues in its state of rest or of uniform motion in a straight line unless it is compelled by external forces to change that state.

b. The rate of change of momentum of a body is directly proportional to the impressed force and takes place in the direction of the force.

c. To every action, there is an equal and opposite reaction.

d. All of these.

4. A stone, tied to a string, is being whirled round in a horizontal circle. The string suddenly breaks. What will be the motion of ther stone ?

a. The stone will continue to move in a circle fbr sometime.

b. The stone will fly off, in a straight line path, along the tangent.

c. The stone will immediately fall to the ground.

d. The stone will first move, along the radius of the circle, to the centre of the circle and finally drops to the ground.

5. A light year is a unit of

a. time.

b. distance.

c. velocity.

d. intensity of light.

6. How does, saft straw work?

a. When air is sucked, a low pressure is created inside the straw. But pressure outside the straw remains high. This differenct in pressure forces the soda upwards.

b. When air is sucked, the force of adhesion between the soda and. straw is reduced. Due to this reduction in the magnitude of the adhesive force, the soda rises in the straw.

c. When air is sucked, eddy currents are produced inside the straw. These eddy currents force the soda to rise upwards.

d. All of these.

7. Why does a ship made of steel float though a steel ball sinks

a. Because ship is propelled by an engine,.

b. In the case of ship. action and reaction are equal and opposite whereas in,case of ball action is greater than reaction.

c. The force of gravitation between the earth and the ship is ,enough to keep ship stable. In the case of ball, this force is so. small ~that the ball cannot be stable.

d. Because weight of water displaced by a ball is less than its own weight, while the weight of water displaced by a ship is greatm than its own weight.

8. Why a person leans forward when climbing a hill

a. Because, when a person bends forward, the line passing through the c6tre of gravity of the person does not lie within his feet. Therefore, the equilibrium is stable and the person can climb easily.

b. Because, when a person leans f6rward, the line passing through the centre of gravity of the person lies within his feet. Therefore, the equilibrium is stable and the person can climb easily.

c. Because, when a person leans forward, the force of friction between his feet and the ground is reduced. Therefore, the chances of slipping are considerably reduced.

d. None of these.

9. The total quantity of motion contained in a body is given by its

a. speed.

b. velocity,

c. momentum.

d. mass.

10. Why a cyclist bends slightly inwards when taking a turn ?

a. Because it provides him the centripetal force necessary to keep him stable.

b. Because he wants to have a better view of the traffic ahead.

c. Both of these.

d. None of these.

General Knowledge

1. World Geography -Test-01

2. World Geography -Test-02

3. World Geography -Test-03

4. Geography of India -Test-01

5. Geography of India -Test-02

6. Geography of India -Test-03

7. Geography of India -Test-04

8. Geography of India -Test-05

9. History of India - Test - 01

10. History of India - Test - 02

11. History of India - Test - 03

12. History of India - Test - 04

13. History of India - Test - 05

14. History of India - Test - 06

15. History of India - Test - 07

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Facts about Plant

Fact 27

Ginkgo (Ginkgo biloba) is one of the oldest living tree species it dates back to about 250 million years ago. Dawn redwood (Metasequoia glyptostroboides) is another ancient species it dates back about 150 million years. Both were known in the fossil record before they were found alive.