Basic Science Practice Question and Answer
8 Q: Which rays are the latest research for use in medicine and war?
2049 05f912ebed6785c0fc0d910b0
5f912ebed6785c0fc0d910b0- 1X raysfalse
- 2Laser raystrue
- 3Gamma raysfalse
- 4cathode raysfalse
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Answer : 2. "Laser rays"
Q: Tungsten resistance to temperature rise?
2001 05ef41568bea49d16b47d39a1
5ef41568bea49d16b47d39a1- 1decreasesfalse
- 2increasestrue
- 3there is no changefalse
- 4All thesefalse
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Answer : 2. "increases"
Explanation :
At high temperatures, the tungsten filament gets hot and atoms in the filament vibrate more. The electrons in the current now collide more with the atoms & more energy is needed to push the current through the filament. Hence, the resistance of tungsten increases with temperature.
Q: Why put a wooden handle in the kettle?
1878 05fc9cf7dcac441723c82be24
5fc9cf7dcac441723c82be24- 1because of fashionfalse
- 2Wood is a bad conductor of heat and the handle is not hottrue
- 3is lightfalse
- 4None of thesefalse
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Answer : 2. "Wood is a bad conductor of heat and the handle is not hot"
Q: Which of the gas is not known as green house gas?
1862 05edef8a5d1536a09d5745f35
5edef8a5d1536a09d5745f35- 1Methanefalse
- 2Hydrogentrue
- 3Nitrous oxidefalse
- 4Carbon dioxidefalse
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Answer : 2. "Hydrogen"
Explanation :
Whereas oxygen, nitrogen, and argon are not examples of greenhouse gases.
Q: What of the following statements is incorrect?
1825 05f9130e59e18f97b7040f069
5f9130e59e18f97b7040f069- 1Iron sinks in waterfalse
- 2Wood floats on waterfalse
- 3Mercury floats on watertrue
- 4Iron floats in mercuryfalse
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Answer : 3. "Mercury floats on water"
Q: Which vitamin is high in orange?
1818 05f91312cd6785c0fc0d915c2
5f91312cd6785c0fc0d915c2- 1Dfalse
- 2Afalse
- 3Ctrue
- 4Bfalse
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Answer : 3. "C"
Q: The first Indian Satellite Aryabhatta was launched in
1814 05f4cbaf5081699374e8068be
5f4cbaf5081699374e8068be- 11974false
- 21975true
- 31976false
- 41977false
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Answer : 2. "1975"
Explanation :
The Aryabhata spacecraft, named after the famous Indian astronomer, was India's first satellite; it was completely designed and fabricated in India and launched by a Soviet Kosmos-3M rocket from Kapustin Yar on April 19, 1975.
Q: The science that deals with the relationship of various organisms with their environment is known as?
1812 15ee997bfeee45c3b837419d9
5ee997bfeee45c3b837419d9- 1anthropologyfalse
- 2economicsfalse
- 3ecologytrue
- 4geologyfalse
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Answer : 3. "ecology"
Explanation :
Ecology is the study of the relationships between living organisms, including humans and their physical environment. The German scientist Earnst Haeckel was the first to use this word in 1869.