Physics Questions and Answers
If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.
If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.
Which of the following statements about the mass and the weight of a body is not correct? its
mass is a scalar quantity
weight is a function of the gravitational pull on it
mass on earth and on the moon is the same
weigh at the equatior and at the poles is the same
Correct answer is D
No explanation has been provided for this answer.
The molecular structure of a liquid is such that
the molecules have unlimited freedom of movement
molecular movement is restricted to vibration only
intermolecular collisions take place
all molecules moves move with the same speed
Correct answer is C
No explanation has been provided for this answer.
P is negatively charged while S is positively charged
P is positively charged while S is negatively charged
both P and S are positively charge
both P and Q are negatively charged
Correct answer is D
No explanation has been provided for this answer.
Which of the following reactions represents nuclear fusion?
\(^2_1H + ^2_1H \to ^3_2He + ^1_0n\)
\(^235_92U + ^1_0n \to ^145_56Ba + ^90_36Kr \)
\(^234_90TH \to ^0_-1n + ^3_2He + ^1_0Pa\)
\(^238_92U \to ^4_2H \to ^3_2He + ^234_90Th\)
Correct answer is A
No explanation has been provided for this answer.
Nuclear fission is preferred to nuclear fusion in the generation of energy because?
very high temperature are required for fusion
the raw material of fusion are not easily obtained
energy obtained from fusion is relatively smaller
the by product of fusion are very dangerous
Correct answer is C
Nuclear Fusion occurs at very high temperature. I.e Thermonuclear reaction.