This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Science Chapter 9 Motion And Time – Quiz 31 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 9 Motion And Time Quiz 31 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The time taken by Rena to reach her school from her home was 15 minutes. If her speed is 2 m/s, then the distance between her home and her school is A) 1.8km. B) 1km. C) 3km. D) 2.5km. Show Answer Correct Answer: A) 1.8km. 2. Who discovered that the time period of a pendulum is constant A) Thomas Thompson. B) Gim He had been. C) Antoinne Greizmann. D) Kane Williamson. Show Answer Correct Answer: B) Gim He had been. 3. Which one of the following cannot be an effect of soil erosion A) Desertification. B) Desalinisation. C) Flooding. D) Famine. Show Answer Correct Answer: B) Desalinisation. 4. If a car is moving at a constant speed of 60 km/h, how far will it travel in 2.5 hours? A) 125 km. B) 100 km. C) 180 km. D) 150 km. Show Answer Correct Answer: D) 150 km. 5. Typically this could be the maintenance of a standard pace while performing essential elements of the job during all portions of the day except that which is required for reasonable rest and personal needs, under circumstances in which the job is not subject to process, equipment, or other operating limitations. A) Qualified employee. B) Standard pace. C) Effective utilization. D) Fair day's work. Show Answer Correct Answer: C) Effective utilization. 6. NAME THE FOLLOWING:The metallic ball which is attached at the end of a pendulum. A) A simple pendulum. B) Ball Ball. C) Bobby. D) Bob. Show Answer Correct Answer: D) Bob. 7. Basic unit of time A) Minute. B) Hour. C) Second. D) All of these. Show Answer Correct Answer: C) Second. 8. How many grams is equal to 1 kilogram? A) 100. B) 10. C) 1. D) 1000. Show Answer Correct Answer: D) 1000. 9. Which of the following cannot be used for measuring time? A) A leaking tap. B) Simple pendulum. C) Shadow of an object during the day. D) Blinking of ice. Show Answer Correct Answer: D) Blinking of ice. 10. The ..... has a triangular metallic plate called a gnomon fixed vertically at the centre of a circular plate. A) Hourglass. B) Sundial. C) Water clock. D) Candle Clock. Show Answer Correct Answer: B) Sundial. 11. The top layer of soil A) D-Horizon. B) C-Horizon. C) B-Horizon. D) None of these. Show Answer Correct Answer: D) None of these. 12. Meter that measures distance moved in a vehicle is A) Speedometer. B) Odometer. C) All the above. D) None of the above. Show Answer Correct Answer: B) Odometer. 13. Oscillatory motion A) Children swinging on sea-saw. B) Child on merry go round. C) Child running a race. D) No answer. Show Answer Correct Answer: A) Children swinging on sea-saw. 14. The motion of vibrating guitar string is A) Translatory. B) Rotatory. C) Periodic. D) Oscillatory. Show Answer Correct Answer: D) Oscillatory. 15. Motion of an arrow left from a bow A) Rotatory. B) Oscillatory. C) Translatory. D) Periodic. Show Answer Correct Answer: D) Periodic. 16. Some ancient ways of measuring time are A) A) Sun rise and Sun set. B) B) One New Moon to Second New Moon. C) C) Both a and b. D) None of the above. Show Answer Correct Answer: C) C) Both a and b. 17. In the statements given below, Assertion and Reason are given. Choose the correct option.A-Motion of Earth is interpreted through the indirect observation like the regularity of sunrise and sunset.R-We cannot see or feel when the Earth is rotating or revolution. A) Both A and R are true but R is not the correct explanation of A. B) Both A and R are true and R is the correct explanation of A. C) A is true but R is false. D) Both A and R are false. Show Answer Correct Answer: B) Both A and R are true and R is the correct explanation of A. 18. A time period means means ..... A) 2345 oscillations. B) 12 oscillations. C) 2 oscillations. D) 1 oscillation. Show Answer Correct Answer: D) 1 oscillation. 19. If a cyclist covers a distance of 30 km in 2 hours, what is the cyclist's speed? A) 15 km/h. B) 30 km/h. C) 45 km/h. D) 60 km/h. Show Answer Correct Answer: A) 15 km/h. 20. Time between one sunrise and the next sunrise is called a ..... A) Hour. B) Year. C) Day. D) Month. Show Answer Correct Answer: C) Day. 21. Label all the parts of a pendulum(Top to bottom) A) Rigid support, thread, ball. B) Bob, rigid support, thread. C) Rigid support, thread, bob. D) Ball, rigid support, thread. Show Answer Correct Answer: C) Rigid support, thread, bob. 22. The Time-period of a simple pendulum if it takes 72 seconds to complete 24 oscillations. A) 2 s. B) 3 s. C) 4 s. D) 5 s. Show Answer Correct Answer: B) 3 s. 23. A truck travels at the speed of 35 km/hr. How much time will it take to cover a distance of 500 km? A) 10 hr. B) 15.8 hr. C) 17.5 hr. D) 14.3 hr. Show Answer Correct Answer: D) 14.3 hr. 24. Motion which repeats itself in a regular intervals of time is called ..... A) Linear motion. B) Circular motion. C) Periodic motion. D) Irregular motion. Show Answer Correct Answer: C) Periodic motion. 25. Which instrument is used to measure the speed of vehicles? A) Anemometer. B) Speedometer. C) Hydro meter. D) Odometer. Show Answer Correct Answer: B) Speedometer. ← PreviousNext →Related QuizzesClass 7 Science Chapter 9 Motion And Time Quiz 1Class 7 Science Chapter 9 Motion And Time Quiz 2Class 7 Science Chapter 9 Motion And Time Quiz 3Class 7 Science Chapter 9 Motion And Time Quiz 4Class 7 Science Chapter 9 Motion And Time Quiz 5Class 7 Science Chapter 9 Motion And Time Quiz 6Class 7 Science Chapter 9 Motion And Time Quiz 7Class 7 Science Chapter 9 Motion And Time Quiz 8Class 7 Science Chapter 9 Motion And Time Quiz 9Class 7 Science Chapter 9 Motion And Time Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books