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question_answer1)
Movement across rough surfaces causes ____ friction.
A)
More done
clear
B)
Less done
clear
C)
No done
clear
D)
Very less done
clear
E)
None of these done
clear
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question_answer2)
We are able to stay on the ground due to:
A)
Buoyant force done
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B)
Elastic force done
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C)
Gravitational force done
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D)
Electrical force done
clear
E)
None of these done
clear
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question_answer3)
_______ force, is the upward push of water on a floating object.
A)
Gravitational done
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B)
Mechanical done
clear
C)
Buoyant done
clear
D)
Frictional done
clear
E)
None of these done
clear
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question_answer4)
Which among the following is incorrect?
A)
Force can change the direction of a moving object. done
clear
B)
Force can change the shape of an object. done
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C)
Force can change the colour of an object. done
clear
D)
Force can stop a moving object. done
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E)
None of these done
clear
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question_answer5)
A rolling ball gets slow down on its own because of:
A)
Gravitational force done
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B)
Frictional force done
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C)
Elastic force done
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D)
Buoyant force done
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E)
None of these done
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question_answer6)
Elastic force is responsible for:
A)
Falling of an apple from the tree. done
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B)
Pushing down of a mug in water. done
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C)
Rubbing of matchstick over matchbox. done
clear
D)
Regaining the original shape by a stretched rubber band. done
clear
E)
None of these done
clear
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question_answer7)
____ reduces the friction between different parts of a machine.
A)
Oil done
clear
B)
Milk done
clear
C)
Water done
clear
D)
Juice done
clear
E)
None of these done
clear
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question_answer8)
The ____ between the types of vehicles and the road enables them to move forward.
A)
Electricity done
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B)
Magnetism done
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C)
Friction done
clear
D)
Gravity done
clear
E)
None of these done
clear
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question_answer9)
Which force brings the bits of paper near a charged ballon?
A)
Frictional force done
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B)
Electrostatic force done
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C)
Magnetic force done
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D)
Gravitational force done
clear
E)
None of these done
clear
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question_answer10)
Which of the following statements is correct?
A)
Friction is always harmful for us. done
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B)
Friction is always useful for us. done
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C)
Friction is a necessary evil. done
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D)
All the above done
clear
E)
None of these done
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question_answer11)
The unit of energy is:
A)
Newton done
clear
B)
Joule done
clear
C)
Pascal done
clear
D)
Metre done
clear
E)
None of these done
clear
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question_answer12)
Which of the following energies is used by plants to produce their food?
A)
Sound energy done
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B)
Solar energy done
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C)
Wind energy done
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D)
Muscular energy done
clear
E)
None of these done
clear
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question_answer13)
Name the fixed point around which the rod of a lever moves.
A)
Load done
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B)
Effort done
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C)
Fulcrum done
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D)
Friction done
clear
E)
None of these done
clear
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question_answer14)
Which among the following is incorrect?
A)
The ability to do work is called energy. done
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B)
Work is Force \[\times \] Distance. done
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C)
Energy and work have same unit. done
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D)
All the above done
clear
E)
None of these done
clear
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question_answer15)
Which among the following is a first class lever?
A)
Scissors done
clear
B)
Stapler done
clear
C)
Seesaw done
clear
D)
All the above done
clear
E)
None of these done
clear
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question_answer16)
In second-class lever:
A)
Fulcrum is located between the load and the effort. done
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B)
There are two fulcrum. done
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C)
Load is located between the fulcrum and the effort. done
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D)
Effort is located between the fulcrum and the load. done
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E)
None of these done
clear
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question_answer17)
Which among the following is not a use of a pulley?
A)
Pulley is used to draw water from well. done
clear
B)
Pulley is used to staple paper sheets. done
clear
C)
Pulley is used in flag raising. done
clear
D)
Pulley is used in elevators. done
clear
E)
None of these done
clear
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question_answer18)
Which among the following is a form of energy?
A)
Mechanical energy done
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B)
Potential energy done
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C)
Muscular energy done
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D)
All the above done
clear
E)
None of these done
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question_answer19)
Energy possessed by a body due to its position is:
A)
Potential energy done
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B)
Kinetic energy done
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C)
Muscular energy done
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D)
Wind energy done
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E)
None of these done
clear
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question_answer20)
___ is the object on which work is to be performed by a lever.
A)
Effort done
clear
B)
Load done
clear
C)
Fulcrum done
clear
D)
Seesaw done
clear
E)
None of these done
clear
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question_answer21)
Which among the following is not a simple machine?
A)
Pulley done
clear
B)
Lever done
clear
C)
Axe done
clear
D)
Hammer done
clear
E)
None of these done
clear
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question_answer22)
Match the follwing:
1. Energy | A. sound energy |
2. Battery posses | B. chemical energy |
3. Work | C. heat energy |
4. Music player has | D. movement of object due to application of force |
5. Burning of wood gives | E. capacity to do work |
A)
1 - A, 2 - B, 3 - C, 4 - D, 5 - E done
clear
B)
1 - D, 2 - C, 3 - E, 4 - A, 5 ? B done
clear
C)
1 - E, 2 - B, 3 - D, 4 - A, 5 - C done
clear
D)
1 - D, 2 - B, 3 - C, 4 - A, 5 ? E done
clear
E)
None of these done
clear
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question_answer23)
Which among the following statements is correct?
A)
Energy can be transformed from one form to another. done
clear
B)
Energy cannot be created. done
clear
C)
Energy cannot be destroyed. done
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D)
All the above done
clear
E)
None of these done
clear
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question_answer24)
Which among the following is a second class lever?
A)
B)
C)
D)
E)
None of these done
clear
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question_answer25)
Energy possessed by a body due to its motion is:
A)
Potential energy done
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B)
Kinetic energy done
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C)
Light Energy done
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D)
Heat energy done
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E)
None of these done
clear
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question_answer26)
Match the following:
Column A | Column B |
i. First class lever | A. Fishing rod |
ii. Second class lever | B. Battery |
iii. Third class lever | C. Scissors |
iv. Chemical energy | D. Bottle opener |
A)
(i - D), (ii - A), (iii - B), (iv- C) done
clear
B)
(i - B), (ii - C), (iii - D), (iv - A) done
clear
C)
(i - C), (ii - D), (iii - A), (iv - B) done
clear
D)
(i - C), (ii - A), (iii - D), (iv - B) done
clear
E)
None of these done
clear
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question_answer27)
Name the simple machine which is used to hold things together
A)
Wheel and axle done
clear
B)
Pulley done
clear
C)
Screw done
clear
D)
Inclined plane done
clear
E)
None of these done
clear
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question_answer28)
A simple machine consists of a small wheel with a groove around its outer edge.
A)
Axe done
clear
B)
Scissors done
clear
C)
Pulley done
clear
D)
Wedge done
clear
E)
None of these done
clear
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question_answer29)
A pair of tongs is an example of:
A)
First class lever done
clear
B)
Second class lever done
clear
C)
Third class lever done
clear
D)
Fourth class lever done
clear
E)
None of these done
clear
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question_answer30)
Which among the following statements is correct?
A)
Unit of force is newton. done
clear
B)
Force is pushing or pulling an object. done
clear
C)
Force applied on an object does not always cause it to move. done
clear
D)
All the above done
clear
E)
None of these done
clear
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question_answer31)
The unit of work is:
A)
Newton done
clear
B)
Metre done
clear
C)
Joule done
clear
D)
Joule per minute done
clear
E)
None of these done
clear
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question_answer32)
Which among the following statements is correct for the first class lever?
A)
The fulcrum is located between the load and the effort. done
clear
B)
The effort is located between the load and the fulcrum. done
clear
C)
The load is located between the fulcrum and the effort. done
clear
D)
Either [a] or [b] done
clear
E)
None of these done
clear
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question_answer33)
Which among the following statements is correct?
A)
Screw is a small wheel with a groove around its edge. done
clear
B)
Ice-tongs are an example of first-class lever. done
clear
C)
A bicycle has a wheel and axle arrangement. done
clear
D)
A screw is a third class lever. done
clear
E)
None of these done
clear
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question_answer34)
The energy obtained from the heat generated within the earth is:
A)
Wind energy done
clear
B)
Geothermal energy done
clear
C)
Solar energy done
clear
D)
Electrostatic energy done
clear
E)
None of these done
clear
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question_answer35)
"Energy can neither be created nor be destroyed but it can be changed from one kind to another" is a statement of:
A)
Law of wasting energy done
clear
B)
Law of conservation of energy done
clear
C)
Law of nature done
clear
D)
Law of gravity done
clear
E)
None of these done
clear
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question_answer36)
Joule, the unit of work. One Joule is equal to:
A)
m/s done
clear
B)
Nm done
clear
C)
\[m/{{s}^{2}}\] done
clear
D)
N done
clear
E)
None of these done
clear
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question_answer37)
Which among the following is a type of mechanical energy?
A)
Kinetic energy only done
clear
B)
Potential energy only done
clear
C)
Both [a] and [b] done
clear
D)
Electrostatic energy done
clear
E)
None of these done
clear
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question_answer38)
How much work is done, when a force of ION is applied on a wooden box to move it by 3 metre?
A)
30 NM done
clear
B)
10 Nm done
clear
C)
3.33 Nm done
clear
D)
3 Nm done
clear
E)
None of these done
clear
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question_answer39)
Which type of lever is shown in the given figure?
A)
First class lever done
clear
B)
Second class lever done
clear
C)
Third class lever done
clear
D)
Fourth class lever done
clear
E)
None of these done
clear
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question_answer40)
Which quantity determines the kinetic energy of a moving object?
A)
Time done
clear
B)
Distance done
clear
C)
Position done
clear
D)
Motion done
clear
E)
None of these done
clear
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