This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Science Chapter 9 Motion And Time – Quiz 20 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 9 Motion And Time Quiz 20 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The distance covered between 2 stations is 240 km. A train takes 4 hours to cover this distance. Calculate the speed of the train. A) 75 km/h. B) 60 km/h. C) 20 km/h. D) 100 km/h. Show Answer Correct Answer: B) 60 km/h. 2. The distance between two stations is 240 km. A train takes 4 hours to cover this distance. Calculate the speed of the train. A) 60 km/h. B) 24 km/h. C) 60 m/h. D) 80 km/h. Show Answer Correct Answer: A) 60 km/h. 3. Maya travels a distance of 3 km in 15 minutes. What is her speed in km/h? A) 15 km/h. B) 20 km/h. C) 13 km/h. D) 12 km/h. Show Answer Correct Answer: D) 12 km/h. 4. If an object is moving along a straight line with a constant speed then it is said to be in ..... motion. A) Uniform. B) Nonuniform. C) Both 1&2. D) None. Show Answer Correct Answer: A) Uniform. 5. Nanosecond is one ..... of a second. A) Billionth. B) Zillionth. C) Millionth. D) None of these. Show Answer Correct Answer: A) Billionth. 6. Times of historical events are stated in terms of centuries or ..... A) Millenniums. B) Centuries. C) Millions. D) None of the above. Show Answer Correct Answer: A) Millenniums. 7. John is swimming at a speed of 1.6 m/s. He is swimming toward a boat floating on the water 500 m away. How long will it take John to reach the boat? A) 312.5 seconds. B) 0.0032 seconds. C) 31.25 seconds. D) 0.032 seconds. Show Answer Correct Answer: A) 312.5 seconds. 8. How can you tell if an object is at rest on a distance-time graph? A) The line is vertical. B) The line is sloped downwards. C) The line is horizontal. D) The line is sloped upwards. Show Answer Correct Answer: C) The line is horizontal. 9. The time taken by the pendulum to complete ..... is called time period. A) Ten oscillations. B) One oscillation. C) Five oscillations. D) None of the above. Show Answer Correct Answer: B) One oscillation. 10. Unit for Speed is A) Newton. B) M/s. C) Mt. D) Km. Show Answer Correct Answer: B) M/s. 11. One hour equals ..... seconds A) 360. B) 3600. C) 36000. D) None of the above. Show Answer Correct Answer: B) 3600. 12. A simple pendulum takes 32 seconds to complete 20 oscillation. The time period is A) 1.8 sec. B) 1.6 sec. C) 1.5 sec. D) 0.8 sec. Show Answer Correct Answer: B) 1.6 sec. 13. The saliva breaks down starch into A) Glucose. B) Fatty acids. C) Sugars. D) Amino acids. Show Answer Correct Answer: C) Sugars. 14. The sundial has a triangular metallic plate called A) Gnomon. B) Romans. C) Chamber. D) Bob. Show Answer Correct Answer: A) Gnomon. 15. If a body covers equal distances in equal interval of time, the body is said to be in ..... A) Uniform motion. B) Non uniform motion. C) Stationary. D) None of the above. Show Answer Correct Answer: A) Uniform motion. 16. The pendulum is said to have completed one oscillation when its bob, starting from its mean position moves to one of its extreme position then to the other through the mean position, then back to its original place. A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: A) True. 17. When the ..... of the body moving in straight line is constant, it is in uniform motion A) Speed. B) Distance. C) Road. D) None of the above. Show Answer Correct Answer: A) Speed. 18. Larger units of time from these is A) Hour. B) Second. C) Millisecond. D) None of the above. Show Answer Correct Answer: A) Hour. 19. Non-Periodic Motion are also called as A) Random Motion. B) Translational Motion. C) Uniform Motion. D) Linear Motion. Show Answer Correct Answer: A) Random Motion. 20. The speed of a motorcar is 25 m/s. Its speed in km/h is A) 2.5 m/s. B) 90 km/h. C) 36 km/h. D) 54 km/h. Show Answer Correct Answer: B) 90 km/h. 21. Force of gravity on the object is greater on A) Poles. B) Equator. C) Same at all places. D) At centre. Show Answer Correct Answer: A) Poles. 22. A man walks on a straight road from his home to a market 2.5 km away with a speed of 5 km/h. Finding the market closed, he instantly turns and walks back home with a speed of 7.5 km/h. The average speed of the man over the interval of time 0 to 40 min. is equal to ..... km/h A) 5. B) 25/4. C) 30/4. D) 45/8. Show Answer Correct Answer: D) 45/8. 23. Simple pendulum is an example of ..... A) Linear motion. B) Circular motion. C) Periodic motion. D) Rotational motion. Show Answer Correct Answer: C) Periodic motion. 24. Time taken by a pendulum to complete one oscillation is called A) Pendulum Period. B) Frequency. C) Time period. D) Oscillatory period. Show Answer Correct Answer: C) Time period. 25. How can you determine if an object is accelerating from a distance-time graph? A) Look for a straight line on the graph. B) Look for a curve that is not a straight line. If the curve is curving upwards, the object is accelerating. C) Check if the graph is horizontal. D) Measure the distance between two points on the graph. Show Answer Correct Answer: B) Look for a curve that is not a straight line. If the curve is curving upwards, the object is accelerating. ← 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