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MOTION AND TIME, 13, provided against each question:, [1 mark each), U Which of the following is an example of circular motion ?, A. Motion of a moving fan, C. Motion of a swing, B. Motion of a pendulum, D. Motion of a mosquito in air, 21 Which of the following is not the unit of speed ?, C. km/s D. m/s2, A. km/h B. m/s, I The speed of the vehicle A is 36 km/h, while the speed of the other, vehicle B is 36 m/s. Which of the following statements is trne ?, A. The speed of vehicle A is high., B. The speed of vehicle B is high., C. The speed of both the vehicles is same., D. Nothing can be said definitely., 14) Which part is 1 nanosecond of 1 second?, A. Ten thousandth part, B. One millionth part, C. Ten millionth part, D. Thousand millionth part, (5) 54 km/h =, m/s, A. 10 m/s, B. 15 m/s C. 18 m/s D. 20 m/s, 6) The speed of a rocket is 8 km/s and that of a tortolse is 8 cm/s., How many times is the speed of rocket as compared to that, of a tortoise ?, A. 100 times, B. 1000 times, C. 10,000 times, D. 1,00,000 times, 17) Which of the following is the correct formula related to speed ?, A. Speed Distance x Time, B. Distance = Speed x Time, %3D, %3D, Speed, Time, Time, C. Speed, D. Distance D, Distance, 8) A train covers 20 km distance in 15 minutes with constant speed., What is its speed ?, A. 60 km/h, B. 45 km/h C. 75 km/h D. 80 km/h, 9) A superfast train with constant speed covers a distance of 135 km, in 1.5 hour. What would be its speed ?, A. 120 km /h B. 105 km/h, C. 100 km/h D. 90 km/h, 10) A car-driver starts for his village from hous at 8 : 30 am. When h, starts, the reading of the odometer of the car is 12345 km. H, reaches his village with constant speed at 9: 15 am. Then readin, of odometer is 12393 km. What would be the speed of his car?, A. 48 km/h, B. 60 km/h C. 64 km/h D. 72 km/h, 119