[{"id":155149,"question":"Work has a 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":155147,"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":"Infinte work","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":155145,"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":155144,"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 and B is correct","value":"C"},{"text":"Both A and B is correct","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":155142,"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":153880,"question":"The work done on the body will be zero if:","choices":[{"text":"No force is applied on the body","value":"A"},{"text":"Force is applied but no displacement","value":"B"},{"text":"Angle between F(force) and d(displacement) is 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":"C"},{"text":"All of these are correct","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":153879,"question":"A boy pulls a toy car through a distance of 5 m by applying a force of 0.5 N, which makes and angle of 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;\">° with the horizontal. The work done by the boy is:</span>","choices":[{"text":"1.25 J","value":"A"},{"text":"12.5 J","value":"B"},{"text":"125 J","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":153878,"question":"If we draw a graph between d (along x-axis) and F (along y-axis) and get a straight line horizontal to x-axis, then area under this straight line represents:","choices":[{"text":"Power","value":"A"},{"text":"Work","value":"B"},{"text":"Pressure","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":153877,"question":"When a wall is pushed by a person very strongly, he has done:","choices":[{"text":"Maximum work","value":"A"},{"text":"Zero work","value":"B"},{"text":"Positive work","value":"C"},{"text":"Negative work","value":"D"},{"value":"E"}],"correctAnswer":2},{"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}]