This quiz works best with JavaScript enabled. Home > Science > Physics > Physics Basics > Physics – Quiz 39 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Physics Quiz 39 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Convex Lens is also called as A) Diverging lens. B) Converging lens. C) Both A & B. D) None of these. Show Answer Correct Answer: B) Converging lens. 2. P1V1 = P2V2 A) Charles's law. B) Boyle's law. C) Pascal's principle. D) Archimedes' principle. Show Answer Correct Answer: B) Boyle's law. 3. Many car passengers have suffered neck injuries when hit by cars from behind. How does Newton's law of inertia explain this? A) The inertia of the car causes the head to jerk forward. B) The inertia of the head causes it to remain in place, while the car and body move forward. C) The inertia of the head causes it to jerk forward, while the car remains in place. D) This has to do with Newton's second law, not first. Show Answer Correct Answer: B) The inertia of the head causes it to remain in place, while the car and body move forward. 4. Light traveling from air to some unknown material makes an angle of 40 degrees to the normal and refracts at an angle of 26 degrees, what is the index of refraction of the new material? A) 1.47. B) 0.68. C) 1.2. D) 1.67. Show Answer Correct Answer: A) 1.47. 5. Which of the following shows the energy transformation that occurs when solar panels are used to heat a building? A) Light $\rightarrow$ thermal. B) Chemical $\rightarrow$ electrical. C) Thermal $\rightarrow$ chemical. D) Light $\rightarrow$ mechanical. Show Answer Correct Answer: A) Light $\rightarrow$ thermal. 6. What is the potential energy of a 5 N object that is raised 5 m in the air? A) 5 J. B) 1 J. C) 25 W. D) 25 J. Show Answer Correct Answer: D) 25 J. 7. Sadie is conducting an experiment to separate white light into colors. Which tool will Sadie use? A) Telescope. B) Mirror. C) Prism. D) None of above. Show Answer Correct Answer: C) Prism. 8. Which statement describes best the motion diagram of an object in motion? A) A graph of the time data on a horizontal axis and the position on a vertical axis. B) A series of images showing the positions of a moving object at equal time intervals. C) A diagram in which the object in motion is replaced by a series of single points. D) A diagram that tells us the location of the zero point of the object in motion and the direction in which the object is moving. Show Answer Correct Answer: B) A series of images showing the positions of a moving object at equal time intervals. 9. These are light, elementary particles that are not made up of quarks. A) Gluons. B) Electrons. C) Leptons. D) Baryon. Show Answer Correct Answer: C) Leptons. 10. $ If\ displacement\propto\left(time\right)^2, \ then$ A) Acceleration =0. B) Accelaration is constant. C) Accelaration is non uniform. D) The body is at rest. E) Velocity is non uniform $ If\ displacement\propto\left(time\right)^2, \ then$. Show Answer Correct Answer: B) Accelaration is constant. 11. Protons and neutrons are made up of which fundamental particle? A) Electrons. B) Quarks. C) Nutrinos. D) None of the above. Show Answer Correct Answer: B) Quarks. 12. During beta decay, a neutron decomposes into A) 1 proton and 1 electron. B) 1 proton. C) 1 electron. D) A new element. Show Answer Correct Answer: A) 1 proton and 1 electron. 13. Freezing occurs when matter changes from a ..... A) Gas to a solid. B) Solid to a gas. C) Liquid to a gas. D) Liquid to a solid. Show Answer Correct Answer: D) Liquid to a solid. 14. A hydroelectric generator shows changes from ..... energy to ..... energy A) Mechanical energy to light energy. B) Mechanical energy to electrical energy. C) Electrical energy to mechanical energy. D) None of above. Show Answer Correct Answer: B) Mechanical energy to electrical energy. 15. For a system in simple harmonic motion, which of the following is the number of cycles or vibrations in one second? A) Amplitude. B) Period. C) Frequency. D) Revolution. Show Answer Correct Answer: C) Frequency. 16. The symbol mm represents a A) Micrometer. B) Megameter. C) Millimeter. D) Manometer. Show Answer Correct Answer: C) Millimeter. 17. Any vector quantity has ..... A) Magnitude. B) Direction. C) Both magnitude and direction. D) None of above. Show Answer Correct Answer: C) Both magnitude and direction. 18. Which is an example of a quantitative observation A) The car was moving 134 mph. B) The leaf is brown. C) The surface feels rough. D) The soup tastes salty. Show Answer Correct Answer: A) The car was moving 134 mph. 19. Who was the SI unit of pressure named for A) Daniel Bernoulli. B) Blaise Pascal. C) Robert Boyle. D) Archimedes. Show Answer Correct Answer: B) Blaise Pascal. 20. Convection is heat transfer by- A) Touch an object. B) The heating and cooling of a fluid. C) Electromagnetic Waves. D) None of above. Show Answer Correct Answer: B) The heating and cooling of a fluid. ← PreviousNext →Related QuizzesPhysics QuizzesScience QuizzesPhysics Quiz 1Physics Quiz 2Physics Quiz 3Physics Quiz 4Physics Quiz 5Physics Quiz 6Physics Quiz 7Physics Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books