Form 3 pp2 2021

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KIVAA HIGH SCHOOLNAME:_________________________________REGNO__________________DATE_______232/1PHYSICSPAPER 1 2021FORM THREE (3)1. Define velocity and state the S.I unit (2mks).2. A body moves 3000 metres due east in 40s then 4000m due north 60s.Calculate :(a) Its average speed (2mks).(b) Its average velocity for the whole journey.(3mks)3. Calculate the work done by 450N force when it moves a load of 2.5m.(3mks)4. Calculate the force that moves a box through a distance of 3m if the work done on thebox was 1500J.(3mks)5. State Newton’s Third law of motion (2mks)6. A girl of mass 50kg stands inside a lift which is accelerated upwards at a rate of2m/s2.Determine the reaction of the lift at the girl’s feet. (3mks)7. Calculate the work done by a stone mason in lifting a stone of mass 15kg through aheight of 2.0m.(Take g=10N/kg)(3mks)8.Define the following term :(3mks(a) Inertia(b) Momentum(c) Impulse9. A boy of mass 40kg walks up a flight of 12 steps. If each step is 20cm high, calculate the workdone by the body. (2mks)10. State the law of conservation of energy. (2mks)11. A 10kg mass falls from a height of 1m to the top of spring fixed on the ground and stretchesby 10cm.When the mass hit the spring the, the spring is compressed to 3cm.(a)Find the spring constant of spring. (2mks).(b)Velocity at which the mass will rebound from the spring. (3mks)12. A car travelling at speed of 72km/h is uniformly retarded by application of bra … Purchase document to see full attachment

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