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.
What is the acceleration due to gravity 'g' on the moon, if g is 10-2 on the earth?
0. 10 ms-2
0.74ms-2
1.6ms-2
10.00ms-2
Correct answer is C
s = 10-2 on earth
g = 6 ms-2 on earth
Earth on moon = \(\frac{10}{6}\)
= 1.6ms-2
When a ball rolls on a smooth level ground, the motion of its center is
translational
oscillatory
random
rotational
Correct answer is A
A ball rolling along a smooth surface observes translational motion at the center while the rest of the body rotates round the center.
0.25 m
0.45 m
0.58 m
1.00 m
Correct answer is A
T = 2\(\pi\) \(\sqrt\frac{L}{g}\)
1 = 2 x 3.142\(\sqrt\frac{L}{10}\)
(since the pendulum pass its lowest point twice in a second, hence the frequency is 1 and period T= \(\frac{1}{F}\))
L= 0.25m
Which of the following is the dimension of pressure?
ML-1T-2
MLT-2
ML2T-3
ML-3
Correct answer is A
Pressure = heg
= m x \(\frac{kg}{m^3}\) x \(\frac{m}{5^2}\)
= ML-1T-2
The graphite rods surrounding the uranium fuel rods in a nuclear reactor, are used to
absorb the neutrons and hence halt the nuclear process
create the neutrons and hence slow up the nuclear process
slowdown the neutrons and hence slow up the nuclear process
speed up the neutrons and hence speed up the nuclear process
Correct answer is C
No explanation has been provided for this answer.