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.
Electrical resistance is a property of an electrical energy to be converted into
mechanical energy
heat energy
magnetic energy
chemical energy
Correct answer is B
No explanation has been provided for this answer.
Which of the following statements about elastic collision is correct?
momentum is lost due to the sound produced
loss of momentim is equal to loss in kinetic energy
both kinetic energy and momentum are conserved
kinetic energy is lost while momentum is conserved
Correct answer is C
No explanation has been provided for this answer.
The time rate of change of momentum is
impulse
force
power
pressure
Correct answer is B
No explanation has been provided for this answer.
0.25ms-2
0.50ms-2
2.00ms-2
5.00ms-2
Correct answer is D
amax = \(\omega^2 r = 10^2 \times \frac{5}{100} = 5ms^{-2}\)
The amplitude of the motion of a body performing simple harmonic motion decreases with time because
friction force dissipate the energy of motion
the frequency of oscillation varies with time
the period of oscillation varies with time
energy is supplied by some external agency
Correct answer is B
No explanation has been provided for this answer.