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Mdcat-past-papers - UHS Quiz

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301. The work done by a variable force can be found by dividing the:



302. Work done is equal to:



303. When a force of 1N displaces its point of application by 1m in the direction of force, the work done is:



304. An automobile is moving forward with uniform velocity due to force exerted by its engine. If that force is doubled with velocity remaining constant, what happens to total power?



305. The consumption of energy by a 60W bulb in 2s is:



306. An electric motor is used to lift the weight of 2.0N through a vertical distance of 100cm in 4 sec. What is the power output of the motor?



307. 2 kilowatt-hour is equal to:



308. A stone of mass 2kg is dropped from rest 5m above ground. What is its velocity at height of 3m?



309. Two bodies with kinetic energies in 4:1 ratio and equal momenta. Ratio of their masses is:



310. Which of the following is a non-conservative force?



311. If mass 'm' dropped from height 'h', force of friction 'f', velocity at bottom 'v', relation is:



312. Angular displacement of a point moving in a circle 10 cm when displacement of projection of this point along vertical diameter of circle is 8.66 cm will be:



313. A body is moving in a circle with increasing angular velocity. At time t = 6 s the angular velocity is 27 rad/s. What is the radius of circle where linear velocity is 81 cm/s:



314. A wheel starts rotating from rest with an angular acceleration of 2 rad/s² till its angular speed becomes 6 rad/s. The angular displacement will equal to:



315. The number of revolutions in 3π radians is:



316. If a flywheel is rotating at 3 rad/s, the time it takes to complete one revolution is about:



317. One degree is equal to:



318. One radian is analogous to:



319. The centripetal acceleration of an object moving along a circle of radius 'r' with an angular speed 'ω' is given by the formula:



320. An aircraft makes a turn in a horizontal circle of radius 100 m. It is travelling with a speed of 250 m/s. The angular velocity of the aircraft will be: