This quiz works best with JavaScript enabled. Home > Science > Physics > Physics – Quiz 2 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Physics Quiz 2 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. When you make sounds by plucking a rubber band, you make the rubber band move back and forth very quickly. This movement is called ..... A) Loudness. B) Amplitude. C) Pitch. D) Vibration. Show Answer Correct Answer: D) Vibration. 2. Which of the following answer contains two scalar quantities and one vector quantity? A) Mass, displacement, time. B) Momentum, velocity, acceleration. C) Temperature, displacement, force. D) Time, length, mass. Show Answer Correct Answer: D) Time, length, mass. 3. Which one is the closest approximate of the speed of light in air? A) 300 000 000 m/s. B) 300 m/s. C) 300 000 m/s. D) 3 000 000 m/s. Show Answer Correct Answer: A) 300 000 000 m/s. 4. How many units are there? A) 10. B) 11. C) 12. D) 13. Show Answer Correct Answer: A) 10. 5. A runner has a momentum of 670 kg m/s and is traveling at a velocity of 9 m/s. What is his mass? A) 6030 kg. B) 0.0134 kg. C) 74.4 kg. D) 80 kg. Show Answer Correct Answer: C) 74.4 kg. 6. What is work done? A) When energy is transferred to move an object. B) When a force is applied. C) When there is a large momentum. D) None of above. Show Answer Correct Answer: A) When energy is transferred to move an object. 7. What is the base SI unit for measuring electric current? A) Ampere (A). B) Meter (m). C) Kilogram (kg). D) Liter (L). Show Answer Correct Answer: A) Ampere (A). 8. A top spinning at the rate of 10 rev/s has what approximate angular speed? A) 62.83 rad/s. B) 1.59 rad/s. C) 65.83 rad/s. D) 4.59 rad/s. Show Answer Correct Answer: A) 62.83 rad/s. 9. According to Newton, gravity was a force ..... According to Einstein, gravity is a ..... A) Force. B) Curvature. C) Mystery. D) Constant velocity. Show Answer Correct Answer: B) Curvature. 10. What law is best described by inertia? A) 1st. B) 2nd. C) 3rd. D) None of above. Show Answer Correct Answer: A) 1st. 11. What keeps an object moving in a circle? A) Centripetal force. B) Centripetal acceleration. C) Inertia. D) Momentum. Show Answer Correct Answer: C) Inertia. 12. Why does a car accelerate as it round a corner at a constant speed? A) Its direction changes. B) It doesn't. C) It slows down. D) Its speeds up. Show Answer Correct Answer: A) Its direction changes. 13. When a negatively charged balloon is placed against a non-conducting wall, positive charges in the wall are ..... A) Attracted to the balloon. B) Repelled from the balloon. C) Too bound to negative charges in the wall to have any effect. D) Neutralized. Show Answer Correct Answer: A) Attracted to the balloon. 14. What is the unit for extension? A) M. B) Cm. C) N. D) N/m. Show Answer Correct Answer: A) M. 15. The acceleration of a body become zero when velocity is A) Maximum. B) Minimum. C) Constant. D) None of above. Show Answer Correct Answer: C) Constant. 16. A branch of Physics dealing with the developments done from Renaissance to the end of the 19th century. A) Modern Physics. B) Classical Physics. C) Introductory Physics. D) Renaissance Physics. Show Answer Correct Answer: B) Classical Physics. 17. Mercury is commonly used as a thermometric fluid rather than water because A) Mercury has greater visibility than water. B) Specific heat of mercury is less than water. C) Density of mercury is more than the water. D) Specific heat of mercury is more than water. Show Answer Correct Answer: A) Mercury has greater visibility than water. 18. Which of the given angle will have the maximum height when a projectile is launched? A) 75o. B) 60o. C) 45o. D) 15o. Show Answer Correct Answer: A) 75o. 19. What happens to the size of the image formed by a concave mirror as the object is brought closer to it? A) Gets larger. B) Gets smaller. C) Remains the same. D) Becomes virtual. Show Answer Correct Answer: A) Gets larger. 20. If a car is rolling down a ramp, the force between the tires and the ramp is an example of A) Air resistance. B) Kinetic Friction. C) Static Friction. D) Balanced Force. Show Answer Correct Answer: B) Kinetic Friction. ← PreviousNext →Related QuizzesScience QuizzesPhysics Quiz 1Physics Quiz 3Physics Quiz 4Physics Quiz 5Physics Quiz 6Physics Quiz 7Physics Quiz 8Physics Quiz 9Physics Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books