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question_answer1)
The magnets shown here will
A)
Attract each other done
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B)
Repel each other done
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C)
Pull each other done
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D)
Cannot say. done
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question_answer2)
When a push or pull comes into physical contact with the object, it is called _____ force.
A)
Gravitational done
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B)
Magnetic done
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C)
Frictional done
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D)
Mechanical done
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question_answer3)
_____ is a form of renewable energy.
A)
Coal done
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B)
Petroleum done
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C)
Wind done
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D)
None of these done
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question_answer4)
In a lever the fixed point around which the rod moves is called ____.
A)
Effort done
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B)
Load done
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C)
Pulley done
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D)
Fulcrum done
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question_answer5)
Which of the following set ups represent a second class lever?
A)
B)
C)
D)
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question_answer6)
Select the odd one out.
A)
B)
C)
D)
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question_answer7)
In the activity shown in the picture ___ energy is being converted into energy.
A)
Mechanical sound done
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B)
Sound, kinetic done
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C)
Mechanical, kinetic done
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D)
Solar, potential done
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question_answer8)
Shred a paper in tiny pieces. Take a comb and comb your hair. Now bring the comb closer to the paper pieces. What will you observe?
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 to the comb due to electrostatic force. done
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D)
The pieces will get attracted and stick to the comb due to frictional force. done
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question_answer9)
The given diagram shows four gears. Raj applied a force to make the smallest gear P, rotate in a clockwise direction as shown. In which direction will gears Q, R and S rotate?
A)
B)
C)
D)
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question_answer10)
A cup of water was heated for eight minutes. The thermometers show the temperature readings during different times of heating.
What can be the temperature when it is heated for three minutes?
A)
27 done
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B)
28 done
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C)
29 done
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D)
30 done
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question_answer11)
The diagram below shows four beakers of water, P, Q, R and S, at different temperature and volume.
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Which one of the following statements is true?
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A)
Beaker P has the most heat energy. done
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B)
Beaker R has more heat energy than beaker Q. done
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C)
Beaker S has more heat energy than beaker R. done
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D)
Beaker P and beaker S have the same amount of heat energy. done
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question_answer12)
Read the given statements regarding the lever and select the correct ones.
(i) In beam balance, fulcrum is in the middle, |
(ii) A nutcracker is an example of third-class lever. |
(iii) In tongs, the fulcrum and the load are at the two ends. |
(iv) See-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_answer13)
The given diagram shows a hill with four labelled positions W, X, Y and Z. When a ball is rolled down the hill, then from which position will it finish rolling with the greatest speed?
A)
Position W done
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B)
Position X done
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C)
Position Y done
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D)
Position Z done
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question_answer14)
The diagram below shows the path taken by a ball when Sundram kicks it. The potential energy of the ball is highest at ____.
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_answer15)
Refer to the given pictures (i) and (ii) and select the correct option regarding it.
A)
Force Q and force Z represent the same force. done
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B)
Force P will be larger when the weight of the object is less done
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C)
Force Z and force X act to increase the speed of the object. done
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D)
Both (a) and (b) done
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question_answer16)
A)
X and Y done
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B)
Y and Z done
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C)
Z only done
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D)
Only done
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question_answer17)
Four similar-sized magnets, P, Q, R and S were hung from strings of different lengths as shown in the diagram. A tray of iron pins was placed below the magnets. Each magnet attracted a different number of pins as shown in the diagram.
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Which magnet was most likely the weakest?
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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_answer18)
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The diagram above shows three pulley systems. In each system, an effort is applied to lift the same load. The distance moved by the effort is greater than that moved by the load in _________.
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A)
P only done
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B)
P and Q done
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C)
P and R done
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D)
Q and R done
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question_answer19)
Megha used the five items shown in the picture to learn more about magnets.
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Which one of the following is not a possible observation for Megha when all 4 rings are placed one on top of the other through the wooden stand?
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A)
B)
C)
D)
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question_answer20)
Four groups of everyday objects were made by Shashank. Out of these only one group has the same type of machines. Identify this group and select the correct option.
A)
Lift, escalator, crane done
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B)
Nutcracker, wheelbarrow, screwdriver done
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C)
Door knob, handle of an eggbeater, see saw done
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D)
Axe, lift, door knob done
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