Everyday Science Quiz | MCQ Test

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Science → MCQs → Everyday Science Quiz from 6 to 10. Science Multiple Choice Question (MCQ) Test.
EVERYDAY SCIENCE QUIZ

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6. For a fixed mass of gas at constant temperature, if we decrease volume, the pressure will
(A) also decrease
(B) increase
(C) remains constant
(D) none of these

7. The lifespan of Red Blood Cells is __________ days.
(A) 60
(B) 120
(C) 180
(D) 240

8. The density of water is
(A) 1 g/cm3
(B) 1.5 g/cm3
(C) 2 g/cm3
(D) none of these

9. Radioactivity was discovered by
(A) Lord Kelvin
(B) J. J. Thomson
(C) Ernest Rutherford
(D) Henri Becquerel

10. A device which converts chemical energy into electrical energy is called
(A) motor
(B) generator
(C) moving-coil meter
(D) battery

11. The Sun’s mass is mainly consist of hydrogen (about 73%). The second main constituent (about 25%) is
(A) hydrogen
(B) helium
(C) carbon dioxide
(D) nitrogen

ANSWERS: EVERYDAY SCIENCE QUIZ
6. (B) increase
7. (B) 120
8. (A) 1 g/cm3
9. (D) Henri Becquerel
10. (D) battery
11. (B) helium