Introduction
General Science is a subject or course of study in which the elements of several sciences are studied. General Science is a very important topic in several competitive exams.
General Science primarily is a combination of Physics, Chemistry, Biology and Earth & Environmental Sciences. Physics, Chemistry, Biology and Earth and Environmental Sciences are very useful for the general understanding of our environment and existence of life on the human planet. The article General Science Quiz Sets lists some of the important quiz questions for the General Science section of various exams including UPSC, Railways recruitment and other government sector related recruitments in India.
Physics is the scientific study of forces such as heat, light, pressure, gravity, and electricity.
Chemistry involved with elements and compounds composed of atoms, molecules, and ions.IT is a branch of science that involves the study of the composition, structure and properties of matter.
Biology, a branch of science is the study of life and living organisms, including their physical structure, chemical processes, molecular interactions, physiological mechanisms, development and evolution.
Quiz
1. Light year is
(b) 
(c)
(d)
Ans:B
5.A car is moving on a road and rain is falling vertically. Select the correct answer.
-
(a) light emitted by the sun in one year.
(b) time taken by light to travel from sun to earth.
(c) the distance traveled by light in free space in one year.
(d) time taken by earth to go once around the sun.
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(a) an acceleration
(b) a deceleration
(c) a uniform speed
(d) all of the above
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(a) current
(b) voltage
(c) power
(d) electric energy
(b)
(c)
(d)
Ans:B
5.A car is moving on a road and rain is falling vertically. Select the correct answer.
-
(a) The rain will strike the wind screen only
(b) The rain will strike the front screen only
(c) The rain will strike both the screens
(d) The rain will not strike any of the screens
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(a) atmosphere
(b) bar
(c) pascal
(d) mm of Hg
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(a)[ML[latex]T^–1[/latex]]
(b)[ML[latex]T^2[/latex]]
(c)[ML[latex]T^–2[/latex]]
(d)[M [latex]L^–1[/latex][latex]T^–3[/latex]]
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(a) force
(b) moment of force
(c) momentum
(d) power
-
(a) 1
(b) 2
(c) 3
(d) 4
-
(a) zero
(b) [latex]Π[/latex]r
(c) 2r
(d) 2[latex]Π[/latex]r
11. The numerical ratio of average velocity to average speed is
-
(a) always less than one
(b) always equal to one
(c) always more than one
(d) equal to or less than one
-
(a) magnitude
(b) direction
(c) both (a) and (b)
(d) time
-
(a) Motion of moon around earth
(b) Motion of planet around sun
(c) Motion of car on crowded road
(d) Motion of a moving fan
-
(a) 1.0 m/s
(b) 0.5 m/s
(c) 0.25 m/s
(d) 0.43 m/s
-
(a) there is no force acting on it
(b) the force acting on it not in contact with it
(c) the combination of forces acting on it balances each other
(d) the body is in vacuum
-
(a) Car A is faster than car D
(b) Car B is the slowest.
(c) Car C is faster than car D.
(d) Car C is the lowest.
-
(a) due to inertia of rest, road is left behind and man reaches forward
(b) due to inertia of motion upper part of body continues to be in motion in forward direction while feet come to rest as soon as they touch the road
(c) he leans forward as a matter of habit
(d) of the combined effect of all the three factors stated in (a), (b) and (c)
-
(a) (1) and (2) only
(b) (3) and (4) only
(c) (1), (2) and (3) only
(d) (1), (2), (3) and (4).
-
(a) unchanged
(b) reduced
(c) increased
(d) nothing can be said
21. The force exerted by the floor of an elevator on the foot of a person standing there, is more than his weight, if the elevator is
-
(a) going down and slowing down
(b) going up and speeding up
(c) going up and slowing down
(d) either (a) or (b)
-
(a) ma
(b) ma – mg
(c) mg – ma
(d) mg + ma
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(a) the material used in car is inferior than the material used in truck.
(b) car experience the greater force of impact than the truck.
(c) momentum transferred to the truck is greater than the momentum transferred to the car.
(d) momentum transferred to the car is greater than the momentum transferred to the truck.
-
(a) always acts opposite to the direction of motion
(b) always acts in the direction of motion
(c) may act in the direction of motion
(d) always acts perpendicular to the direction of motion
-
(a) along the direction of motion of the coin w.r.t. ground
(b) opposite to the direction of motion of the coin w.r.t. ground
(c) towards the centre of the disc
(d) away from the centre of the disc
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(a) must be equal to the force applied by the monkey on the rope.
(b) must be less than the force applied by the monkey on the rope.
(c) must be greater than the force applied by the monkey on the rope.
(d) may be equal to, less than or greater the force applied by the monkey on the rope.
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(a) Flight of a jet plane
(b) A cricket player lowering his hands while catching a cricket ball
(c) Walking on floor
(d) Rebounding of a rubber ball
-
(a) first law of motion
(b) second law of motion
(c) third law of motion
(d) Newton’s law of gravitation
-
(a) 1 joule
(b) 100 joule
(c) 36 joule
(d) 3.6 × [latex]10^3[/latex] kilo joule
-
(a) x=[latex]\frac{h}{2}[/latex] , y=[latex]\frac{b}{2}[/latex]
(b) x=[latex]\frac{b}{2}[/latex] , y=[latex]\frac{h}{2}[/latex]
(c) x=[latex]\frac{b}{3}[/latex] , y=[latex]\frac{h}{3}[/latex]
(d) x=[latex]\frac{h}{3}[/latex] , y=[latex]\frac{b}{3}[/latex]
31. For a body falling freely under gravity from a height
-
(a) only the potential energy goes on increasing
(b) only the kinetic energy goes on increasing
(c) both kinetic energy as well as potential energy go onincreasing
(d) the kinetic energy goes on increasing while potential energy goes on decreasing
-
(a) the gravity does not act on bodies moving with high speeds
(b) the thrust of the jet compensates for the force of gravity
(c) the flow of air around the wings causes an upward force, which compensates for the force of gravity
(d) the weight of air whose volume is equal to the volume of the plane is more than the weight of the plane
-
(a) both parts will have numerically equal momentum
(b) lighter part will have more momentum
(c) heavier part will have more momentum
(d) both parts will have equal kinetic energy
-
(a) the total kinetic energy is conserved
(b) the total mechanical energy is not conserved
(c) the linear momentum is not conserved
(d) the linear momentum is conserved
-
(a) Linear momentum
(b) K.E
(c) Angular momentum
(d) None of these
-
(a) the angular velocity decreases
(b) the moment of inertia decreases
(c) the angular velocity stays constant
(d) the angular momentum increases
-
(a) nearer to B
(b) nearer to A
(c) at equal distance from A and B
(d) cannot be determined
-
(a) continues in its state of rest or uniform motion along a straight line
(b) gets linear acceleration
(c) gets angular acceleration
(d) rotates at a constant speed
-
(a) pure linear motion
(b) pure rotational motion
(c) no motion.
(d) both linear and rotational motion
-
(a) climb with an acceleration 9.8 [latex]\frac{m}{s^2}[/latex]
(b) fall with an acceleration 9.8 [latex]\frac{m}{s^2}[/latex]
(c) fall with a constant acceleration 3.4 [latex]\frac{m}{s^2}[/latex]
(d) fall with acceleration and then would attain a constant velocity
41. When a satellite is in the synchronous orbit above the equator, it stays in one place with reference to the earth by making each revolution in just the same time as it takes the earth to rotate once. What is the altitude of the synchronous orbit?
-
(a) 20000 km
(b) 30000 km
(c) 32500 km
(d) 36000 km
-
(a) equator
(b) latitude 45°
(c) latitutde 60°
(d) poles
-
(a) zero
(b) [latex] \infty [/latex]
(c) T
(d) 2T
-
(a) [latex] m^0 [/latex]
(b) [latex] m^1 [/latex]
(c) [latex] m^2 [/latex]
(d) [latex] m^3 [/latex]
-
(a) it is closer to the earth and also it has the inactive inert gases in it.
(b) it is too for from the sun and has very low pressure in its outer surface.
(c) the escape velocity of gas molecules is greater than their root mean square velocity.
(d) the escape velocity of gas molecules is less than their root mean square velocity.
-
(a) zero
(b) negative
(c) positive
(d) may be positive, negative or zero
-
(a) increase at the equator but remain unchaged at the poles
(b) decrease at the equator but remain unchanged at the poles
(c) remain unchaged at the equator but decrease at the poles
(d) remain unchanged at the equator but increase at the poles
-
(a) A
(b) B
(c) C
(d) D
-
(a) keep constant velocity
(b) ease the tension
(c) increase the velocity
(d) balance the effect of earth’s gravity
-
(a) continue to move with same speed along a straight line tangentially to the satellite at that time.
(b) continue to move with the same speed along the original orbit of satellite.
(c) fall down to earth gradually
(d) go far away in space
51. Two satellites of earth, [latex]S_1[/latex] and [latex]S_2[latex] are moving in the same orbit. The mass of [latex]S_1[latex] is four times the mass of [latex]S_2[latex]. Which one of the following statements is true?
-
(a) The potential energies of earth satellites in the two cases are equal.
(b)[latex]S_1[latex] and [latex]S_2[latex] are moving with the same speed.
(c) The kinetic energy of the two satellites are equal.
(d) The time period of [latex]S_1[latex] is four times that of [latex]S_2[latex].
-
(a) continue to move in its orbit with same speed
(b) move tangentially to the original orbit with same speed
(c) become stationary in its orbit
(d) move towards the earth
-
(a) The orbital velocity depends on the mass of the satelllite
(b) A minimum velocity of 8 km/sec is required by a satellite to orbit quite close to the earth
(c) The period of revolution is large if the radius of its orbit is large
(d) The height of a geostationary satellite is about 36000 km from earth
-
(a) work energy theorem
(b) conservation of linear momentum
(c) conservation of angular momentum
(d) conservation of energy
-
(a) the earth does not attract the objects in a satellite
(b) the normal force by the chair on the person balances the earth’s attraction
(c) the normal force is zero
(d) the person in satellite is not accelerated
-
(a) weight
(b) mass
(c) acceleration
(d) potential energy