This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Science Chapter 9 Motion And Time – Quiz 6 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 9 Motion And Time Quiz 6 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A simple pendulum takes 42 sec. to complete 20 oscillations. What is its time period? A) 21 s. B) 2.1 s. C) 8.40 s. D) 4.2 s. Show Answer Correct Answer: B) 2.1 s. 2. What type of speed is when an object covers equal distances in equal intervals of time? A) Non-uniform Speed. B) Variable Speed. C) Uniform Speed. D) Average Speed. Show Answer Correct Answer: C) Uniform Speed. 3. Which is not a standard unit? A) Meter. B) Second. C) Gram. D) Hand span. Show Answer Correct Answer: D) Hand span. 4. The triangular metallic plate in a sundial is called A) Gnomon. B) Pendulum. C) Bob. D) None of the above. Show Answer Correct Answer: A) Gnomon. 5. The distance time graph of a car is plotted with time on the X-axis and distance on the Y-axis. The graph is a straight line parallel to the X-axis. Which of the following is true about the car? A) It is in uniform motion. B) It is in non uniform motion. C) It is not in moving. D) It is moving very fast. Show Answer Correct Answer: C) It is not in moving. 6. How can distance-time graphs be useful in real life? A) Distance-time graphs are useful for analyzing travel speed, planning trips, and comparing different journeys. B) Distance-time graphs are primarily for financial analysis. C) Distance-time graphs are used to measure temperature changes. D) Distance-time graphs help in cooking recipes. Show Answer Correct Answer: A) Distance-time graphs are useful for analyzing travel speed, planning trips, and comparing different journeys. 7. Motion is of various types and the type of motion depends on how an object moves. For example, which type of motion can A) Parabolic motion. B) Linear motion. C) Oscillatory motion. D) Circular motion. Show Answer Correct Answer: B) Linear motion. 8. The speedometer measures the speed of a vehicle in A) Km/h. B) M/h. C) Kg/h. D) None of the above. Show Answer Correct Answer: A) Km/h. 9. What is the difference between instantaneous speed and average speed? A) Instantaneous speed is the speed at a specific moment, while average speed is the total distance divided by total time. B) Instantaneous speed is calculated by averaging speeds over a period. C) Average speed is the speed at a specific moment in time. D) Instantaneous speed is always greater than average speed. Show Answer Correct Answer: A) Instantaneous speed is the speed at a specific moment, while average speed is the total distance divided by total time. 10. The to and fro motion of an object which moves along the same path is called A) Rotatory Motion. B) Vibratory Motion. C) Circular Motion. D) Oscillatory Motion. Show Answer Correct Answer: D) Oscillatory Motion. 11. Unit of speed= A) Kilometer. B) Centimeters. C) Kilometers/hour. D) Liters/kg. Show Answer Correct Answer: C) Kilometers/hour. 12. A car moves with a speed of 40km/h for 2 hour what is the distance covered by the object? A) 20km/h. B) 80Km / h. C) 80km. D) 20km. Show Answer Correct Answer: C) 80km. 13. Which of these are the example of periodic motion A) Needle of sewing machine. B) Spinning of top or fan. C) Car moving on a straight road. D) None of these. Show Answer Correct Answer: A) Needle of sewing machine. 14. 1 m/s = A) 18/5 km/hr. B) 5/18 km/hr. C) All the above. D) None of the above. Show Answer Correct Answer: A) 18/5 km/hr. 15. The unit of speed in SI system is A) M/s. B) Km/s. C) Km/h. D) M/h. Show Answer Correct Answer: A) M/s. 16. If the speed of an object moving along a straight line keeps changing, then its a ..... motion. A) Uniform motion. B) Non-uniform motion. C) Periodic motion. D) None of the above. Show Answer Correct Answer: B) Non-uniform motion. 17. Determine the speed of a golf ball that was hit 200meters in 5 seconds. A) 1000 m/s. B) 40 m/s. C) 100 m/s. D) .025 m/s. Show Answer Correct Answer: B) 40 m/s. 18. Swami walks to his school which is at a distance of 4 km from his home in 30 minutes. On reaching he finds that the school is closed and comes back in his friend's vehicle to home in 10 minutes. His average speed in km/h is A) 8 km/h. B) 24 km/h. C) 16 km/h. D) 20 km/h. Show Answer Correct Answer: C) 16 km/h. 19. The device which is used for measuring time intervals in sports activities is called A) Wristwatch. B) Stopwatch. C) Pendulum. D) None of these. Show Answer Correct Answer: B) Stopwatch. 20. Speed can be calculated by an instrument called ..... A) Clock. B) Watches. C) Odometer. D) Speedometer. Show Answer Correct Answer: D) Speedometer. 21. When an object changes position with time, it is said to be in A) Rest. B) Stationary. C) Circle. D) Motion. Show Answer Correct Answer: D) Motion. 22. When a body covers unequal distances in equal intervals of time then it is said to be in ..... motion A) Uniform. B) Non uniform. C) Periodic. D) Vibratory. Show Answer Correct Answer: B) Non uniform. 23. It involves the analysis of the basic hand, arm, and body movements of workers as they perform work. A) Motion study. B) Time study. C) Work Design. D) Therblig. Show Answer Correct Answer: A) Motion study. 24. All the clocks make use of some periodic motion. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 25. Explain what a speed-time graph shows. A) A speed-time graph represents the total time taken for a journey. B) A speed-time graph shows the distance traveled over time. C) A speed-time graph shows how speed changes over time. D) A speed-time graph indicates the acceleration of an object. Show Answer Correct Answer: C) A speed-time graph shows how speed changes over time. ← 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 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 10Class 7 Science Chapter 9 Motion And Time Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books