This quiz works best with JavaScript enabled. Home > Science > Physics > Physics Basics > Physics – Quiz 26 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Physics Quiz 26 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What materials would be good insulators for a handle on a pan or pot that would be used on the stove? A) Wood or metal. B) Metal or rubber. C) Wood or rubber. D) Copper or steel. Show Answer Correct Answer: C) Wood or rubber. 2. Branches of physics that studies the production and properties of sound A) Optics. B) Mechanics. C) Acoustics. D) Quantum Physics. Show Answer Correct Answer: C) Acoustics. 3. Photoelectrons will be ejected from a material surface if? A) The threshold frequency is greater than the photon frequency. B) The work function is less than the photon energy. C) The intensity of light is high enough. D) The wavelength of photon is maximum. Show Answer Correct Answer: B) The work function is less than the photon energy. 4. A converging lens has a focal length of 30 cm. A 5 cm tall candle is placed at a distance of 10 cm in front of the lens. Determine the image distance. A) -45 cm. B) -30 cm. C) -15 cm. D) 6 cm. Show Answer Correct Answer: C) -15 cm. 5. Sammy studied kinetic and potential energy by observing apples on a tree during a field investigation. What type of energy do the apples on the tree have? A) Elastic potential energy. B) Mechanical energy. C) Gravitational potential energy. D) Sound energy. Show Answer Correct Answer: C) Gravitational potential energy. 6. The area of irregular shaped object can be calculated using a A) Formula. B) Tissue paper. C) Graph paper. D) Filter paper. Show Answer Correct Answer: C) Graph paper. 7. Friction is which type of force? A) Circular force. B) Action-at-a-distance force. C) Contact force. D) Fundamental force. Show Answer Correct Answer: C) Contact force. 8. Which term describes when light bounces off of a smooth surface? A) Refraction. B) Transmission. C) Absorption. D) Reflection. Show Answer Correct Answer: D) Reflection. 9. The idea stating that matter is made up of small particles that are in constant motion is A) Boyle's law. B) Charles's law. C) The kinetic theory of matter. D) Archimedes' principle. Show Answer Correct Answer: C) The kinetic theory of matter. 10. ..... Law says that a current produced by an induced emf moves in a direction so that its magnetic field opposes the original change in flux A) Lenz'. B) Faraday's. C) Ampere's. D) None of above. Show Answer Correct Answer: A) Lenz'. 11. A pendulum takes two seconds to make a complete swing . what could one swing be called A) Time taken. B) Period. C) Change in time. D) Time. Show Answer Correct Answer: B) Period. 12. Convex lens focus a real, point sized image at focus, the object is placed A) At focus. B) Between F and 2F. C) At infinity. D) At 2F. Show Answer Correct Answer: C) At infinity. 13. AN ELECTRIC FUSE IS BASED ON A) THE HEATING EFFECT OF THE CURRENT. B) THE MAGNETIC EFFECT OF THE CURRENT. C) THE CHEMICAL EFFECT OF THE CURRENT. D) NONE OF THESE. Show Answer Correct Answer: A) THE HEATING EFFECT OF THE CURRENT. 14. The half-life of Radon-222 is 4 days. If the initial mass of radon is 20g, what is the mass decayed after 12 days? A) 2.5g. B) 17.5 g. C) 15.0g. D) 5.0g. Show Answer Correct Answer: B) 17.5 g. 15. What is internal energy? A) The amount of heat an object contains. B) The sum of the kinetic and potential energy of the particles of a substance. C) Something we can measure easily. D) Something that does not exist. Show Answer Correct Answer: B) The sum of the kinetic and potential energy of the particles of a substance. 16. It is an area of Physics that studies the nature and behavior of light. A) Optics. B) Nuclear Physics. C) Thermodynamics. D) Quantum Mechanics. Show Answer Correct Answer: A) Optics. 17. What does polarizing light do? A) Blocks light. B) Causes light to travel in only one plane. C) Reduces the amount of light. D) Looks cool. Show Answer Correct Answer: B) Causes light to travel in only one plane. 18. What is the correct equation for calculating a time? A) Time = acceleration / change in velocity. B) Time = change in velocity x acceleration. C) Time = change in velocity / acceleration. D) None of above. Show Answer Correct Answer: C) Time = change in velocity / acceleration. 19. What is the definition of "weight" ? A) Measure of the force of gravity on your body. B) The time it takes to get on a ride. C) The amount of matter in an object. D) The size of an object. Show Answer Correct Answer: A) Measure of the force of gravity on your body. 20. Which Branch of Physics is most important when determining how much voltage is produced by a wind turbine? A) Mechanics. B) Waves & Wave mechanics. C) Relativity. D) Electromagnetism. Show Answer Correct Answer: D) Electromagnetism. ← 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