Practice Physics gk quiz - general science mcq Online Quiz (set-1) For All Competitive Exams
Q-1) If pieces of equal size of woods, wax and iron falling from a same height, which one will reach the surface of the Earth first?
(a)
(b)
(c)
(d)
Q-2) If an object is falling from above, its weight remains
(a)
(b)
(c)
(d)
Q-3) The mass of a body on the Earth is 100 kg (acceleration due to gravity, $g_e = 10 m/s^2$). If acceleration due to gravity on the Moon is ($g_e = 106 m/s^2$), then the mass of the body on the Moon is
(a)
(b)
(c)
(d)
Q-4) A pendulum clock can run faster in
(a)
(b)
(c)
(d)
Q-5) Consider the following statements. A Simple Pendulum is set into oscillation. Then, - the acceleration is zero when the bob passes through the mean position.
- in each cycle the bob attains a given velocity twice.
- both acceleration and velocity of the bob are zero when it reaches its extreme position during the oscillation.
- the amplitude of oscillation of the simple pendulum decreases with time.
Which of these statements are correct?
(a)
(b)
(c)
(d)
Q-6) Who propounded the universal law of gravitation?
(a)
(b)
(c)
(d)
Q-7) A ball is dropped from the top of a high building with a constant acceleration of 9.8 m/$s^2$. What will be its velocity after 3 s?
(a)
(b)
(c)
(d)
Q-8) A girl is swinging on a swing in sitting position. When the girl stands up, the period of the swing will
(a)
(b)
(c)
(d)
Q-9) Earth’s escape velocity is
(a)
(b)
(c)
(d)
Q-10) Which of the following pairs is correctly matched?
Column I
Column II
A. Radium
1. Alexander Fleming
B. Penicillin
2. Madam Curie
C. X-ray
3. Edward Jenner
D. Smallpox
4. W.K. Roentgen
Choose the correct option from the codes given below for (A), (B), (C), and (D).
| Column I | Column II |
| A. Radium | 1. Alexander Fleming |
| B. Penicillin | 2. Madam Curie |
| C. X-ray | 3. Edward Jenner |
| D. Smallpox | 4. W.K. Roentgen |
(a)
(b)
(c)
(d)
Q-11) Who among the following anticipated Newton by declaring that all things gravitate to the Earth?
(a)
(b)
(c)
(d)
Q-12) The acceleration due to gravity of a destructive Earthquake will be
(a)
(b)
(c)
(d)
Q-13) If the radius of the Earth were to shrink by one percent, its mass remaining the same, the value of g on the Earth’s surface would
(a)
(b)
(c)
(d)
Q-14) Who gave the theory of gravity?
(a)
(b)
(c)
(d)
Q-15) A smooth plane inclined at an angle q with the horizontal as shown in the given figure. A body starts from rest and slides down on the inclined surface. The time taken by the body to reach the bottom is
(a)
(b)
(c)
(d)
Q-16) Satellite is kept moving in its orbit around the Earth; it is due to
(a)
(b)
(c)
(d)
Q-17) If an apple is released from an orbiting spaceship, it will
(a)
(b)
(c)
(d)
Q-18) The time period of a pendulum
(a)
(b)
(c)
(d)
Q-19) Weightlessness is
(a)
(b)
(c)
(d)
Q-20) What will happen if an object is thrown into space with the speed of 8 km/s?
(a)
(b)
(c)
(d)