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.
Determine the magnitude of P in the diagram above
16N
20N
32N
40N
Correct answer is C
X = 50 sin30 = 30 x 0.5 = 25cm
40 x 20 = p x 25
p = 40×2025
= 32N
30ms-1
25ms-1
20ms-1
15ms-1
Correct answer is A
S = 12(a+b)h
60 = 12(15+25)h
h = 120040=30m/s
An atom 23491P emits a gamma radiation. The resultant nuclide is
23090Th
23491Pa
23490Th
23489Ac
Correct answer is B
No explanation has been provided for this answer.
Fusion is not usually used for generating electric power because
no energy is released when fusion takes place
very high temperatures are required to initiate fusion reaction
the raw materials needed is not easily available
heavy nuclei are involved
Correct answer is B
No explanation has been provided for this answer.