Welcome to your Kinematics - Linear and Non-Linear Motion, Projectiles(Senior Class Physics Study by Topics) NAME EMAIL PHONE NUMBER 1. An object moves with uniform speed round a circle. Its acceleration has constant magnitude and varying direction varying magnitude and constant direction constant magnitude and constant direction varying magnitude and varying direction 2. If a body moves with a constant speed and at the same time undergoes an acceleration, its motion is said to be circular oscillatory rectilinear rotational 3. A stone and a feather are dropped from the same height above the earth surface. Ignoring air resistance, which of the following is correct? the feather will reach the ground first the stone will reach the ground first the feather will be blown away by the wind while the stone will drop steadily the stone and feather will both reach the ground at the same time 4. A body travels from rest and accelerates uniformly to a speed of 120km/hr in 10 seconds. What is the distance covered? 1000km 600km 60km 1/6km 6km 5. A body which is uniformly retarded comes to rest in 10s after traveling a distance of 20m.Calculate its initial velocity. 20m/s 200m/s 2m/s 4m/s 0.5m/s 6. Two balls X & Y weighing 5g and 50kg respectively were thrown up vertically at the same time with a velocity of 100m/s. How will their positions be one second later? X and Y are 95m from the point of throw X and Y will both be 500m from the point of throw X will be 500m ahead of Y Y will be 95m ahead of X 7. A stone was dropped from a height, h and attained a velocity of 20m/s just before hitting the ground. If g = 10m/s², calculate the height, h through which it fell.. 20m 10m 100m 200m 8. A car moves with an initial velocity of 25m/s and reaches a velocity of 45m/s in 10s. What is the acceleration of the car? 20m/s² 2m/s² 5m/s² 25m/s² 9. A body starts from rest and moves with uniform acceleration of 6m/s².What distance does it cover in the third second ? 30m 15m 35m 27m 18m 10. A body falls freely under gravity (g = 9.8m/s²) from a height of 40m onto the top of a platform 0.8m above the ground. Its velocity on reaching the platform is 78.4m/s 80m/s 39.2m/s 27.7m/s 784m/s 11. A car moving with a speed of 90km/hr was brought uniformly to rest by the application of the brakes in 10s.How far did the car travel after the brakes were applied? 250m 25km 15km 150m 125m 12. A body starts from rest and moves with constant acceleration. Which of the following quantities varies/vary linearly with the square of the time.I. velocityII. displacementIII. momentum II & III only II only I & II only III only I only 13. The driver in a car of which the total mass is 800kg and which is traveling at 20m/s, suddenly observes a stationary cat in his path 50m ahead.If the car brakes exert a force of 2KN, what will most likely happen? the car will be able to stop immediately the driver notices the cat the car will stop 30m after hitting the cat the car will stop 20m in front of the cat the driver will quickly reverse the car the cat will stop 5m beyond the cat 14. The distance moved by a particle in the sixth and eight seconds of the motion are 45m and 53m respectively.Determine the acceleration and initial speed. 7m/s² and 36m/s 4m/s² and 23m/s 10m/s² and 46m/s 5.4m/s² and 12m/s 15. A ball is dropped from a height of 20m and rebounds with a velocity which is 3/4 of the velocity with which it hits the ground. What is the time interval between the first and the second bounces? 1.5s 6.0s 0.5s 2.0s 3.0s 16. A body accelerates uniformly from rest at 2m/s². Calculate its velocity after travelling 9m. 4.24m/s 36m/s 6m/s 18m/s 4.5m/s 17. During the same interval, it is observed that a train travels the same distance as does a lorry. The two vehicles therefore have the same initial velocity average velocity uniform acceleration average speed instantaneous velocity 18. From the top of the Eiffel tower, a rubber ball and a piece of iron rod were dropped to the ground. Which of the following is true? (neglect air resistance) the iron rod will first reach the ground the rubber ball will first reach the ground both objects will reach the ground at the same time under high temperature condition, the iron rod will first reach the ground 19. Which of the following types of motion are oscillatory?I. a diving board when used by a diverII. the motion of the balance wheel of a wrist watchIII. the motion of turn-table of a record playerIV. the motion of the center of a coin as it rolls down on an inclined planeV. the motion of a needle of a d.c ammeter into which a low a.c current is passed. I, II & III only I, II & V only III, IV & V only II, III & IV only I & II only 20. The motion of a moving skin of a talking drum can rightly be described as translational random transitory rotational oscillatory 21. A body which moves from rest with a uniform acceleration travels 18m during the third second. What will be its velocity at the end of the eight second? 40m/s 35.33m/s 7.20m/s 57.6m/s 22. A boy moving with a velocity of 4m/s is brought to rest by a constant force after traveling 20m.Calculate the retardation. 2.5m/s² 0.4m/s² 5.0m/s² 0.2m/s² 0.1m/s² 23. A ball is thrown vertically upwards and returns to the thrower after 6s.Calculate the maximum height attained.(Take g = 10m/s²) 135m 180m 90m 150m 45m 24. A car traveling at 20m/s is brought to rest with a constant deceleration of 10m/s².Calculate the distance traveled. 20m 10m 200m 400m 25. A body starts from rest and moves in a straight path with uniform acceleration of 8m/s² for 5 seconds. It then decelerates uniformly to rest in the next 10 seconds. Calculate the magnitude of its acceleration. 80m/s² 8m/s² 4m/s² 16m/s² 3m/s² 1 out of 25 Time is Up! Time's up