NSTSE (National Science Talent Search Exam- Unified Council) Class 6: Questions 1990 - 1997 of 2029
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Question number: 1990
Question
If a pulley is not frictionless, then
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | No variation |
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| b. |
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| c. |
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| d. |
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Question number: 1991
» Chemistry » Separation of Substances
Question
The substances which are feebly attracted by magnets are known as
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Diamagnetic substances |
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| b. | Ferromagnetic substances |
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| c. | Paramagnetic substances |
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| d. | Question does not provide sufficient data or is vague |
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Question number: 1992
Question
Due to which of the following reason efficiency of a simple machine is less than 100%?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Energy dissipation by sound |
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| b. | Presence of Friction |
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| c. | Load > Effort |
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| d. | None of the above |
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Question number: 1993
» Chemistry » Separation of Substances
Question
The magnetic power of magnet is maximum at
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Poles |
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| b. | Every part of magnet |
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| c. | Center |
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| d. | Not yet defined |
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Question number: 1994
» Chemistry » Separation of Substances
Question
Which magnet is more effective in producing magnetic field?
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Iron magnets |
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| b. | Nickel magnets |
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| c. | Cobalt magnets |
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| d. | Copper magnet |
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Question number: 1995
» Chemistry » Changes Around Us
Question
From the following physical changes, choose the irreversible process.
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Dicing of onion |
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| b. | Melting of ice |
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| c. | Coloring of car |
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| d. | Crumpling a paper |
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Question number: 1996
» Chemistry » Changes Around Us
Question
Is the Following Statement True or False?
Sharpening of a pencil is a chemical change?
Question number: 1997
» Chemistry » Separation of Substances
Question
Magnetic substances are attracted to
Choices
| Choice (4) | Response | |
|---|---|---|
| a. | Centre of magnet |
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| b. | North pole of magnet |
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| c. | South pole of magnet |
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| d. | All a. , b. and c. are correct |
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