Question 1Which of the following is a scalar quantity?A.momentumB.accelerationC.displacementD.distanceE.forceObjective Show full explanation
Question 2What change in velocity would produce a body of mass 4kg i a constant force of 18N acts on it for 2s?A.0.5m/sB.2.0m/sC.8.0m/sD.128m/sObjective Show full explanation
Question 3A body accelerates uniformly from rest at the rate of 3m/s² for 8s. Calculate the distance covered by the body during the acceleration.A.12mB.24mC.48mD.72mE.96mObjective Show full explanation
Question 4Which of the following has the same unit as the moment of force?A.forceB.powerC.workD.momentumE.chargeObjective Show full explanation
Question 5Which of the following will reduce the frequency of oscillation of a simple pendulum?A.increasing the mass of the bobB.decreasing the mass of the bobC.increasing the length of the stringD.decreasing the length of the stringE.increasing the amplitude of oscillationObjective Show full explanation
Question 6A barometer can be used in determining the length of a i. mountain ii, Depth of a mine iii. dew point. Which of the following is/are correct?A.i,ii,iiiB.ii and ii onlyC.i and iii onlyD.i and ii onlyE.iii onlyObjective Show full explanation
Question 7Which of the following colours of surfaces will radiate heat energy best?A.redB.whiteC.blackD.yellowE.blueObjective Show full explanation
Question 8A gas which obeys Charles law exactly has a volume of 283cm² at 10°C. What is its volume at 300C?A.142cm³B.293cm³C.303cm³D.566cm³E.848cm³Objective Show full explanation
Question 9A real image of an object formed by a converging lens of focal length 15cm is 3 times the size of the object. What is the distance of the object from the lens?A.30cmB.25cmC.20cmD.15cmE.10cmObjective Show full explanation
Question 10How far from a cliff should a boy stand to hear the echo of his clap 0.8s later? (Speed of sound in air = 330m/s)A.36.67mB.74.25mC.148.50mD.297.00mE.366.67mObjective Show full explanation