This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Science Chapter 9 Motion And Time – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 9 Motion And Time Quiz 2 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The sun appears to move across the sky. This apparent motion of the sun is caused because Earth is A) Rotating on its axis. B) Revolving around the sun. C) Much smaller than the sun. D) Tilted on its axis. Show Answer Correct Answer: A) Rotating on its axis. 2. Time between one sunrise and the next sunrise was called as A) Day. B) Month. C) Year. D) Hour. Show Answer Correct Answer: A) Day. 3. The water clock is also known as A) Better. B) Clepsydra. C) Clapsidra. D) Hourglass. Show Answer Correct Answer: B) Clepsydra. 4. In amoeba digestive juice are secreted in A) Contractile vacuole. B) False feet. C) Nucleus. D) Food vacuole. Show Answer Correct Answer: D) Food vacuole. 5. What is the significance of the slope in a distance-time graph? A) The slope indicates the time taken for the journey. B) The slope indicates the speed of the object. C) The slope shows the direction of the object. D) The slope represents the distance traveled. Show Answer Correct Answer: B) The slope indicates the speed of the object. 6. A car moves with a speed of 40 km/h for 15 minutes and then with a speed of 60 km/h for the next 15 minutes. The total distance covered by the car is A) 60. B) 50. C) 100. D) 25. Show Answer Correct Answer: D) 25. 7. 1 microsecond is ..... of a second A) 1 millionth. B) 10 billionth. C) 38 trillionth. D) None of the above. Show Answer Correct Answer: A) 1 millionth. 8. Salma takes 15 minutes to walk from her home to her friend's house. She finds the house closed and she comes back to her house jogging in 9 minutes. What is her average speed, if the distance between her house and her friend's house is 2 km? A) 5 km/hr. B) 15 km/hr. C) 10 km/hr. D) 0.35 km/hr. Show Answer Correct Answer: C) 10 km/hr. 9. The shortest distance between two places along the straight-line path is called ..... A) Displacement. B) Speed. C) Distance. D) Track. Show Answer Correct Answer: A) Displacement. 10. Which of the following devices can help measure the speed of a vehicle? A) Speedometer. B) Odometer. C) Accelerometer. D) Pedometer. Show Answer Correct Answer: A) Speedometer. 11. In a distance-time graph, what does a straight line indicate? A) Non-uniform motion. B) Acceleration. C) Rest. D) Uniform motion. Show Answer Correct Answer: D) Uniform motion. 12. The time from one full moon to next was known as A) A day. B) A year. C) A month. D) A week. Show Answer Correct Answer: C) A month. 13. What is the metallic ball in the pendulum called? A) Bob. B) Ball. C) Equilibrium. D) Oscillater. Show Answer Correct Answer: A) Bob. 14. A car travels at 54 km/h for first 20 s, 36 km/h for next 30 s and finally 18 km/h for next 10 s. Average speed of the car is: A) 40 km/h. B) 39 km/h. C) 38 km/h. D) 37 km/h. Show Answer Correct Answer: B) 39 km/h. 15. A spaceship travels 36000 km in one hour.Express its speed in km/s. A) 30 km/s. B) 50 km/s. C) 10 km/s. D) 20 km/s. Show Answer Correct Answer: C) 10 km/s. 16. Speed= A) D/T. B) D/S. C) D*T. D) S/T. Show Answer Correct Answer: A) D/T. 17. The smallest unit measured by a wrist watch accurately is A) Millisecond. B) Second. C) Minute. D) Hour. Show Answer Correct Answer: B) Second. 18. ..... is a refinement of the pendulum clock. A) Wristwatch. B) Digital watch. C) Stopwatch. D) None of the above. Show Answer Correct Answer: A) Wristwatch. 19. Example of a pendulum? A) Atomic clock. B) Water clock. C) Gauge clock. D) None of these. Show Answer Correct Answer: D) None of these. 20. One of the following is not a type of soil A) Loamy soil. B) Sitly soil. C) Clayey soil. D) Sandy soil. Show Answer Correct Answer: B) Sitly soil. 21. The time period of a simple pendulum depends upon ..... A) Material of the ball. B) Size of the ball. C) Length of the thread. D) None of the above. Show Answer Correct Answer: C) Length of the thread. 22. THE DISTANCE COVERED BY A OBJECT IN UNIT TIME IS CALLED ITS A) DISTANCE. B) COLOUR. C) SPEED. D) TIME/ DISTANCE. Show Answer Correct Answer: C) SPEED. 23. Which astronomer is the one to prove that the motion of a pendulum is periodic? A) Galileo Galilei. B) Christian Huygens. C) Alfred Wegner. D) None of the above. Show Answer Correct Answer: A) Galileo Galilei. 24. In a mechanical wristwatch, which part works in the same way as a pendulum in a clock? A) Balance wheel. B) Long wheel. C) Short wheel. D) None of the above. Show Answer Correct Answer: A) Balance wheel. 25. What instrument is used to measure time intervals in a laboratory experiment? A) Stopwatch. B) Thermometer. C) Barometer. D) Ammeter. Show Answer Correct Answer: A) Stopwatch. ← PreviousNext →Related QuizzesClass 7 Science Chapter 9 Motion And Time Quiz 1Class 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 10Class 7 Science Chapter 9 Motion And Time Quiz 11 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books