ECAT Pre General Science Online Test With Answers

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ECAT Pre General Science Online Test

Sr. # Questions Answers Choice
1 The SI unit of spring constant is identical with that of Force Surface tension Pressure Loudness
2 Which one of the following is an example of SHM Motion in a plane Motion in a swing Motion in a car None of these
3 The unit of spring constant is J-sec Metre Nm<sup>-1</sup> None of these
4 When a body moves along a circular path with constant speed, it has an acceleration, which is always directed Along the tangent Towards the centre Away from the centre None of them
5 One radian is Greater than one degree Less than one degree Equal to one degree None of these
6 Centripetal acceleration is also called ________ acceleration Tangential Radial Angular None of these
7 Direction of motion _______ in circular motion Changes off and on Changes continuously Does not change None of them
8 An axis of rotation Is a straight line Is normal to the plane of rotation Passes through pivot point O All of them
9 Conventionally the angular velocity is directed at an angle of 90° to the axis of rotation 30° to the axis of rotation 0° to the axis of rotation None of the above
10 A point on the rim of a wheel moves 0.2 m when the wheel turns through an angle of 14.3 degrees. The radius of the wheel is 0.05 m 0.08 cm 0.8 m 0.008 m
11 Tick the conservative force Tension in a string Air resistance Elastic spring Frictional force
12 A field in which the work done in moving a body along closed path is zero is called Nuclear Field Conservative field Gravitational field Non-conservative field
13 When a force of 0.5 N displaces a body through a distance of 2m in the direction of force, the work done is 0.5 J 2 J 0.25 J 1 J
14 The work done in moving a body between two points in a conservative field is independent of the Direction Force applied Path followed by the body Power
15 Which of the following types of force can do no work on the particle on which it acts Frictional force Gravitational force Electric force Centripetal force
16 A body moves a distance of 10 m along a straight line under the action of a force of 5 N and work done in 25J. The angle which the force makes with the direction of motion will be 60° 90° 30° 0°
17 The Space around the Earth within which it exerts a force of attraction on other bodies is known as Nuclear field Conservative field Electric field Gravitational field
18 Work done is maximum when angle between force and displacement is 0° 90° 180° None of these
19 Radio telescope is used to gather information from Earth Moon only Far side of the universe Sea water
20 Aerodynamics is a branch of Hydrodynamics Thermodynamics Both of them Statics
21 Silicon can be obtained from Lead Uranium An isotope of oxygen Sand
22 Particles have the mass smallest of following is Electron Proton Neutron Quark
23 The mechanics, which deals with the objects moving with velocities approaching that of light is called Relativistic mechanics Wave mechanics Quantum mechanics Statics
24 Astrophysics is a branch of physics, which deals with Sub-atomic Stars and galaxies Light and sound Music
25 The information from far side of the universe are gathered by Radio telescope Microscope Telescope Spectro scpe
26 Physics deals with the study of Matter Energy Both of them Human Body
27 The body of physics involves Structure of space and time Interaction of electromagnetic radiation with matter Both of them Chemical Changes
28 Michael Faraday is known by his work on Nuclear strong force Gravitational force Nuclear weak force Electric force None of these
29 The concept of electric field theory was introduced by Michael Faraday Newton Dalton Kepler Einstein
30 Origin of the electric and the gravitational forces Was known in 1911 A.D. Was known in 1811 A.D. Was known in 1711 A.D. is still unknown Was known in 1611 A.D.
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