[{"id":153876,"question":"The work done by a force keeping an object in circular motion with constant speed is:","choices":[{"text":"Zero J.","value":"A"},{"text":"0.1 J","value":"B"},{"text":"1 J","value":"C"},{"text":"0.01 J","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":153875,"question":"Which force is not a conservative force:","choices":[{"text":"Frictional force","value":"A"},{"text":"Gravitational force","value":"B"},{"text":"Electric force","value":"C"},{"text":"Elastic spring force","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":153874,"question":"A labourer carrying a distance a load on his head moves from rest on a horizontal road to another point where he comes to rest. He has done:`","choices":[{"text":"Minimum work","value":"A"},{"text":"<div>Maximum work</div>","value":"B"},{"text":"Zero work","value":"C"},{"text":"Negative work","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":153873,"question":"A body moves a distance of 10 m among a straight line under the action of a force of 5 N. If the work done is 25 J, the angle which the force makes with the direction of motion of a body is:","choices":[{"text":"0<span style=\"font-size: 10.5pt; line-height: 107%; font-family: Arial, sans-serif; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;\">°</span>","value":"A"},{"text":"30<span style=\"font-size: 10.5pt; line-height: 107%; font-family: Arial, sans-serif; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;\">°</span>","value":"B"},{"text":"60<span style=\"font-size: 10.5pt; line-height: 107%; font-family: Arial, sans-serif; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;\">°</span>","value":"C"},{"text":"90<span style=\"font-size: 10.5pt; line-height: 107%; font-family: Arial, sans-serif; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;\">°</span>","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":153872,"question":"A 100 Kg car is moving at the speed of 10 m/sec and comes to rest after covering a distance of 50 m. The amount of work done against the friction is:","choices":[{"text":"+5 X 10<sup>1</sup>J","value":"A"},{"text":"+5 X 10<sup>2</sup>J","value":"B"},{"text":"+5 X 10<sup>3</sup>J","value":"C"},{"text":"+5 X 10<sup>4</sup>J","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":153871,"question":"The total work done in moving the body up and then down through the same height in a gravitational field is equal to:","choices":[{"text":"mgh","value":"A"},{"text":"Its wight","value":"B"},{"text":"Weight X height","value":"C"},{"text":"Zero","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":153870,"question":"When the body is moves against the force of friction on a horizontal plane, the work done by the body is:","choices":[{"text":"Positive","value":"A"},{"text":"Negative","value":"B"},{"text":"Zero","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":153869,"question":"In the force applied is parallel to the direction of motion, then work done is:","choices":[{"text":"Maximum","value":"A"},{"text":"Minimum","value":"B"},{"text":"Zero","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":153868,"question":"A two Kg block is held 1 m above the floor for 50 seconds, the work done is:","choices":[{"text":"Zero","value":"A"},{"text":"10.2 J","value":"B"},{"text":"100 J","value":"C"},{"text":"980 J","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":153865,"question":"Work done is lowering the bucket into the well is:","choices":[{"text":"Zero","value":"A"},{"text":"Positive","value":"B"},{"text":"Negative","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":153864,"question":"The angle between centripetal force and displacement of the body moving in a circle is:","choices":[{"text":"0<span style=\"font-size: 10.5pt; line-height: 107%; font-family: Arial, sans-serif; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;\">°</span>","value":"A"},{"text":"90<span style=\"font-size: 10.5pt; line-height: 107%; font-family: Arial, sans-serif; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;\">°</span>","value":"B"},{"text":"180<span style=\"font-size: 10.5pt; line-height: 107%; font-family: Arial, sans-serif; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;\">°</span>","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":153863,"question":" Tick the conservation force:","choices":[{"text":"Tension in a string","value":"A"},{"text":"Air resistance force","value":"B"},{"text":"Elastic spring","value":"C"},{"text":"Frictional force","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":153861,"question":"The work done moving a body between two points in a conservation field is independent of the:","choices":[{"text":"Direction","value":"A"},{"text":"Force applied","value":"B"},{"text":"Path followed by the body `","value":"C"},{"text":"Power","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":153859,"question":"The field in which work done in moving a body between two points depends upon the path followed is called:","choices":[{"text":"Conservative field","value":"A"},{"text":"Non-conservative field","value":"B"},{"text":"Electric field","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":153856,"question":"A body moves a distance of 10 m along a straight line under the action of a force of 5 N and work done is 25J. The angle which the force makes the direction of motion will be:","choices":[{"text":"60<span style=\"font-size: 10.5pt; line-height: 107%; font-family: Arial, sans-serif; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;\">°</span>","value":"A"},{"text":"90<span style=\"font-size: 10.5pt; line-height: 107%; font-family: Arial, sans-serif; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;\">°</span>","value":"B"},{"text":"30<span style=\"font-size: 10.5pt; line-height: 107%; font-family: Arial, sans-serif; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;\">°</span>","value":"C"},{"text":"0<span style=\"font-size: 10.5pt; line-height: 107%; font-family: Arial, sans-serif; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;\">°</span>","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":153855,"question":"The space around the earth within it exerts a force of attraction on other bodies of known as:","choices":[{"text":"Nuclear field","value":"A"},{"text":"Conservative field","value":"B"},{"text":"Electric field","value":"C"},{"text":"Gravitational field","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":153854,"question":"Work done is maximum when angle between force and displacement is:","choices":[{"text":"0<span style=\"font-size: 10.5pt; line-height: 107%; font-family: Arial, sans-serif; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;\">°</span>","value":"A"},{"text":"90<span style=\"font-size: 10.5pt; line-height: 107%; font-family: Arial, sans-serif; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;\">°</span>","value":"B"},{"text":"180<span style=\"font-size: 10.5pt; line-height: 107%; font-family: Arial, sans-serif; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial;\">°</span>","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":153853,"question":"Work has the dimension as that of:","choices":[{"text":"Torque","value":"A"},{"text":"Angular momentum","value":"B"},{"text":"Linear momentum","value":"C"},{"text":"Power","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":153852,"question":"If force and displacement are in opposite direction, the work done is taken as:","choices":[{"text":"Positive work","value":"A"},{"text":"Negative work","value":"B"},{"text":"Zero work","value":"C"},{"text":"Infinite work","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":153851,"question":"The work performed on an object does not depend on:","choices":[{"text":"Force applied","value":"A"},{"text":"Angle at which force is inclined to the displacement","value":"B"},{"text":"Initial velocity of the object","value":"C"},{"text":"Displacement","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":153850,"question":"Work is always done on a body when:","choices":[{"text":"A force acts on it","value":"A"},{"text":"It moves through certain distance","value":"B"},{"text":"None of A or B is correct","value":"C"},{"text":"Both A and B is correct","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":153849,"question":"Work is a:","choices":[{"text":"Scalar quantity","value":"A"},{"text":"Vector quantity","value":"B"},{"text":"Base quantity","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":153839,"question":"The time rate of change of displacement is called:","choices":[{"text":"Time","value":"A"},{"text":"Acceleration","value":"B"},{"text":"Speed","value":"C"},{"text":"Velocity","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":153838,"question":"One newton is a force that produces an acceleration of 0.5 m/sec<sup>2</sup>in a body of mass:","choices":[{"text":"2 kg","value":"A"},{"text":"3 kg","value":"B"},{"text":"4 kg","value":"C"},{"text":"8 kg","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":153837,"question":"Force is a:","choices":[{"text":"Scalar quantity","value":"A"},{"text":"Base quantity","value":"B"},{"text":"Derived quantity","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":153836,"question":"An object is dropped from a height of 100 m. Its velocity at the moment it touches the ground is:","choices":[{"text":"100 m/sec","value":"A"},{"text":"140 m/sec","value":"B"},{"text":"1960 m/sec","value":"C"},{"text":"196 m/sec","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":153835,"question":"Bodies which falls freely under gravity provides good example of motion under:","choices":[{"text":"Uniform acceleration","value":"A"},{"text":"Non-uniform acceleration","value":"B"},{"text":"Uniform velocity","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":153834,"question":"<br>Swimming becomes possible because of______law of motion:","choices":[{"text":"First","value":"A"},{"text":"Second","value":"B"},{"text":"Third","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":153833,"question":"A dirty carpet is to be cleaned by heating. This is an accordance with____ law of motion:","choices":[{"text":"First","value":"A"},{"text":"Second","value":"B"},{"text":"Third","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":153832,"question":"A certain force gives an acceleration of 2 m/sec2 to a body if mass 5 kg. The same force would give a 29 kg object an acceleration of:","choices":[{"text":"0.5 m/sec2","value":"A"},{"text":"5 m/sec2","value":"B"},{"text":"1.5 m/sec2","value":"C"},{"text":"9.8 m/sec2","value":"D"},{"value":"E"}],"correctAnswer":1}]