This quiz works best with JavaScript enabled. Home > Class 7 > Class 7 Science Chapter 9 Motion And Time – Quiz 14 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 7 Science Chapter 9 Motion And Time Quiz 14 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. How can you determine the speed from a distance-time graph? A) Count the number of points on the graph. B) Calculate the area under the graph. C) Find the slope of the distance-time graph. D) Measure the thickness of the graph line. Show Answer Correct Answer: C) Find the slope of the distance-time graph. 2. Who discovered the fact that time period of given pendulum is constant? A) James Bond. B) Antonio charles. C) Gim He had been. D) Mark Zuckerberg. Show Answer Correct Answer: C) Gim He had been. 3. They have an electric circuit that works with the help of cells. They provide accurate time. A) Pendulum clock. B) Sand clock. C) Quartz clock. D) Water clock. Show Answer Correct Answer: C) Quartz clock. 4. Speed= ..... /Time A) Displacement. B) Vector. C) Distance. D) Meter. Show Answer Correct Answer: C) Distance. 5. The speed of a train is expressed in m/h A) True. B) False. C) All the above. D) None of the above. Show Answer Correct Answer: B) False. 6. What unit is commonly used to measure time? A) Hours. B) Seconds. C) Minutes. D) Days. Show Answer Correct Answer: B) Seconds. 7. The rotation of the earth eastward causes A) The seasons. B) Day and night. C) Dizziness. D) Earthquakes. Show Answer Correct Answer: B) Day and night. 8. What is a oscillation measured in? A) Ampere. B) Hz. C) Mg. D) Gauge. Show Answer Correct Answer: B) Hz. 9. The first pendulum was invented by a ..... scientist named ..... A) American / Jeff Bezos. B) African / Elon Musk. C) Dutch / Christian Huygens. D) German / Alfred wegener. Show Answer Correct Answer: C) Dutch / Christian Huygens. 10. The time taken by the earth to complete one revolution around the sun is called A) A year. B) A month. C) A day. D) Half year. Show Answer Correct Answer: A) A year. 11. Force is required to A) All the above. B) Change an object from motion into rest. C) Change its direction. D) Change the object from rest into motion. Show Answer Correct Answer: A) All the above. 12. The speed of a car is 36 km/h whereas the speed of a bus is 12 m/s. Which vehicle moves faster? A) Bus. B) Car. C) Both at same speed. D) No answerr. Show Answer Correct Answer: B) Car. 13. What is uniform motion and how is it different from non-uniform motion? A) Uniform motion is when an object travels in a circular path at a constant speed. B) Uniform motion is when an object moves randomly at varying speeds. C) Non-uniform motion is when an object's speed remains constant over time. D) Uniform motion is when an object travels in a straight line at a constant speed. Non-uniform motion is when an object's speed or direction changes over time. Show Answer Correct Answer: D) Uniform motion is when an object travels in a straight line at a constant speed. Non-uniform motion is when an object's speed or direction changes over time. 14. How do you convert seconds into minutes? A) Multiply the number of seconds by 60. B) Add 60 to the number of seconds. C) Divide the number of seconds by 60. D) Subtract 60 from the number of seconds. Show Answer Correct Answer: C) Divide the number of seconds by 60. 15. If a pendulum swings back and forth 10 times in 20 seconds, what is its frequency? A) 0.25 Hz. B) 1 Hz. C) 0.5 Hz. D) 2 Hz. Show Answer Correct Answer: C) 0.5 Hz. 16. SI unit of length? A) Metre. B) Centimetre. C) Kilometre. D) Millimeter. Show Answer Correct Answer: A) Metre. 17. Which device uses the position of the sun to measure time? A) Pendulum clock. B) Sundial. C) Water clock. D) Quartz clock. Show Answer Correct Answer: B) Sundial. 18. In a simple pendulum, the metallic ball suspended by thread is called its ..... A) Bob. B) Thread. C) Stand. D) Ball. Show Answer Correct Answer: A) Bob. 19. Boojho walks to his school which is at distance of 3 km from his home in 30 minutes. On reaching he finds that the school is closed and comes back by a bicycle with his friend and reaches home in 20 minutes. what is the total distance covered by Boojho? A) 50 minutes. B) 3 km. C) 30 minutes. D) 6 kilograms. Show Answer Correct Answer: D) 6 kilograms. 20. SI unit of distance is ..... A) Metre. B) Km. C) Cm. D) All. Show Answer Correct Answer: A) Metre. 21. A bus travel 54 km in 90 minutes the speed of the bus is?? A) 0.6 m/s. B) 10 m/s. C) 5.4 m/s. D) 3.6 m/s. Show Answer Correct Answer: B) 10 m/s. 22. How does a simple pendulum demonstrate periodic motion? A) It exhibits periodic motion by vibrating rapidly. B) It demonstrates periodic motion by spinning in circles. C) A simple pendulum demonstrates periodic motion by swinging back and forth in a regular, repeating pattern. D) It shows periodic motion by moving in a straight line. Show Answer Correct Answer: C) A simple pendulum demonstrates periodic motion by swinging back and forth in a regular, repeating pattern. 23. Which of the clock will be most accurate? A) Pendulum. B) Sundial. C) Hourglass. D) Atomic clock. Show Answer Correct Answer: D) Atomic clock. 24. Reading Comprehension-The Sundial Bridge Both "Build a Sundial" and "The Sundial Bridge" include the idea that- A) People used sundials before clocks were invented. B) A modern sundial was built in Redding, California. C) A sundial's time can be checked with a "noon mark.". D) Making a sundial today is easy. Show Answer Correct Answer: A) People used sundials before clocks were invented. 25. Which condition out of the following will increase the evaporation of water? A) Increase in temperature of water. B) Decrease in temperature of water. C) Less exposed surface area of water. D) Adding common salt to water. Show Answer Correct Answer: A) Increase in temperature of water. ← 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