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question_answer1)
Bottle opener is an example of
A)
An inclined plane done
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B)
First class lever done
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C)
2nd class lever done
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D)
3rd class lever done
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question_answer2)
Pick the odd one out.
A)
Friction done
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B)
Weight done
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C)
Energy done
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D)
Air resistance done
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question_answer3)
A simple machine
A)
Improves the movement only done
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B)
Do more work with less effort? done
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C)
Changes the direction of forces in all situation done
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D)
All of these done
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question_answer4)
Movement of water in ocean due to heating can be shown by the model of
A)
Boiling salt water till it begins to evaporate done
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B)
Mixing of fresh water (coloured red) in a large pan. done
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C)
Cooling of water until it freezes and then observing it as it thaws. done
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D)
Pouring heated coloured water into one end of a large pan of cool water done
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question_answer5)
Stapler belongs to which class of lever
A)
Class I lever done
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B)
Class II lever done
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C)
Class III lever done
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D)
Inclined plane done
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question_answer6)
A ramp is a good example of
A)
A lever done
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B)
A wedge done
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C)
A screw done
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D)
An inclined plane done
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question_answer7)
A dry comb after combing the hairs is brought near the tiny pieces of paper, what happens?
A)
The paper pieces will get repelled due to magnetic force done
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B)
The paper pieces will get repelled due to electrostatic force done
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C)
The paper pieces will get attracted and stick with comb due to electrostatic force done
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D)
The paper pieces will get attracted to comb due to friction force done
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question_answer8)
Which of the following form of energy is required to boil the water?
A)
Electric energy done
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B)
Heat energy done
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C)
Mechanical energy done
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D)
All of these done
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question_answer9)
(i) Scissors (ii) bottle opener (iii) nail cutter, (iv) forceps. Which of the followings are example of levers.
A)
(i) and (iv) done
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B)
(ii) and (iv) done
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C)
(i), (ii) and (iii) done
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D)
(i), (ii), (iii), (iv) done
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question_answer10)
In wheel barrow, which two simple machine mechanism is utilized to make the work easier.
A)
An inclined plane and a pulley. done
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B)
A wheel and axle and wedge done
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C)
Gears and wheels. done
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D)
A wheel and axle and lever done
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question_answer11)
The diagram shows the path of a ball when kicked at point P and return to the ground again at S.Tell the point at which the ball has the maximum potential energy.
A)
P done
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B)
Q done
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C)
R done
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D)
S done
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question_answer12)
Consider the following statements
Statement I: Work is done when book is pushed across the table. |
Statement II: Work is done when a heavy wall is pulled. |
Which of the following is correct about the statements?
A)
Statement I is true and II is false done
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B)
Statement I is false and II is true done
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C)
Both the statements are true done
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D)
Both the statements are false done
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question_answer13)
Which of the following form of energy is required to move the wheeled trolley?
A)
Mechanical done
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B)
Electrical done
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C)
Solar done
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D)
Heat done
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question_answer14)
While pulling the sledge in snow, which type of force comes in action?
A)
Heat done
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B)
Pressure done
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C)
Friction done
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D)
Energy done
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question_answer15)
When a ball is thrown in the air upward it comes down after some time, because of
A)
magnetic force done
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B)
gravitational force done
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C)
frictional force done
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D)
divine force done
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question_answer16)
A sea-saw is an example of
A)
Screw done
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B)
First class lever done
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C)
Second class lever done
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D)
Third class lever done
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question_answer17)
What is the unit of measurement of energy?
A)
Joule done
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B)
Newton done
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C)
Kilowatt done
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D)
None of these done
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question_answer18)
Which of the following activities involves the use of lever
(i) Using your arm to lift a hand bag |
(ii) Using scissor to cut clothes |
(iii) Using a wheel barrow to transfer tool |
A)
(i) and (ii) only done
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B)
(i) and (iii) only done
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C)
(ii) and (iii) only done
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D)
All of these done
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question_answer19)
The lid of a jar is which kind of simple machine
A)
Ramp done
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B)
Pulley done
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C)
Screw done
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D)
Wedge done
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question_answer20)
Regarding lever, select the correct statement from the given below
(i) In beam balance, fulcrum is in the middle |
(ii) A nutcracker is an example of third class lever |
(iii) In tongs the, the fulcrum and the load are at two ends |
(iv) Sea-saw is an example of first class lever |
A)
(i), (iii) and (iv) done
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B)
(ii) only done
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C)
(iii) and (iv) done
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D)
(i) and (ii) done
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question_answer21)
While loading of boxes on trucks ramp is used. The surface of the ramp is made smoother because, there would be less
A)
mass in box done
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B)
gravity pulling on the box done
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C)
Friction opposing the box done
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D)
distance to push the box done
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question_answer22)
In removing a nail from a wooden block using a hammer with nail remover, the effort, load and fulcrum positions can be shown as
A)
B)
C)
D)
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question_answer23)
Fulcrum is a
A)
pushing force done
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B)
Pulling force done
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C)
the fixed point of a lever done
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D)
An object done
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question_answer24)
A ship is heavier than an iron nail, but floats on the water surface, while nail sinks, because
A)
iron nail is thin and ship has large surface area done
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B)
iron nail is small and ship is big done
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C)
the ship has to save the life of many people done
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D)
The weight of ship becomes equal to the weight of water it displaces done
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question_answer25)
What is an effort in lever action?
A)
The fixed point of the bar done
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B)
The object that is removed done
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C)
The force applied to move the load done
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D)
None of these done
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question_answer26)
The head of an axe is wide at one end and pointed at the other end to help in cutting of wood. Here the head of the axe is an example of
A)
an inclined plane done
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B)
a pulley done
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C)
a wheel and axle done
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D)
a wedge done
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question_answer27)
What are the different simple machines used in the fishing rod?
A)
Pulley and inclined plane done
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B)
Pulley and wheel and axle done
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C)
Wheel and axle and lever done
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D)
Lever and inclined plane done
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question_answer28)
A hammer is being used as a lever to pull a nail out of piece of wood which of the following statement is false?
A)
Lever can change the direction of force done
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B)
Load is nearer to the fulcrum than the effort done
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C)
Pulling action is change to the vertical lifting action on nail done
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D)
Larger force is used using hammer than simple removal directly done
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question_answer29)
In a pair of scissors, identify the fulcrum, effort and load
A)
K - Effort, L - Load, M - Fulcrum done
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B)
K - Load, L - Effort, M - Fulcrum done
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C)
K - Effort - L - Fulcrum, M - Load done
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D)
K - Fulcrum - L - Load - M -Effort done
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question_answer30)
A ball is rolled on from the hill top with four labeled portion as P, Q, R, and S, which portion it will have its maximum kinetic energy.
A)
P done
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B)
Q done
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C)
R done
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D)
S done
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