This quiz works best with JavaScript enabled. Home > Science > Physics > Physics Basics > Physics – Quiz 42 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Physics Quiz 42 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A(n) ..... is a push or a pull. A) Newton. B) Acceleration. C) Force. D) Momentum. Show Answer Correct Answer: C) Force. 2. Day= ..... second A) 86.400. B) 100. C) 24. D) 3600. Show Answer Correct Answer: A) 86.400. 3. Another name for a light source is A) Luminous object. B) Non-luminous object. C) Reflector. D) Opaque. Show Answer Correct Answer: A) Luminous object. 4. Equation for kinetic energy A) 1/2 x mass x speed2. B) 1/2 / mass x speed2. C) 1/2 x mass x speed3. D) 1/2 / mass x speed3. Show Answer Correct Answer: A) 1/2 x mass x speed2. 5. Calculate the Kinetic Energy (KE) of a girl whose mass is 50 kg who is moving at 4 m/s. A) 200 J. B) 800 J. C) 400 J. D) 100 J. Show Answer Correct Answer: C) 400 J. 6. Bayu can catch the ball. and the ball stops. does this prove the forces can? A) Change how things move. B) Change shape. C) Change direction. D) None of above. Show Answer Correct Answer: A) Change how things move. 7. Identify at least two areas of physics involved in the following:Cooling off on a hot day by diving into a swimming pool. A) Vibrations and wave phenomena, electromagnetism. B) Mechanics, vibrations and wave phenomena. C) Optics, thermodynamics. D) Thermodynamics, mechanics. Show Answer Correct Answer: D) Thermodynamics, mechanics. 8. Units of weight A) N (Newtons). B) Kg. C) Grams. D) J (Joules). Show Answer Correct Answer: A) N (Newtons). 9. Which option is the correct unit of measurement for energy? A) Joule (J). B) Kilogram (kg). C) Newton (N). D) Jewel (je). Show Answer Correct Answer: A) Joule (J). 10. A 70 kg acrobat hangs from a bar, motionless, that is attached to the ceiling by two ropes. Find the tension in each rope. A) 70 N. B) 686.7 N. C) 343.35 kg. D) 343.35 N. Show Answer Correct Answer: D) 343.35 N. 11. What happens to the mass of a substance when it changes from a solid to a liquid? A) It increases. B) It decreases. C) It stays the same. D) None of above. Show Answer Correct Answer: C) It stays the same. 12. How much energy is required to change 2600 g of water at 100 $^\circ$ C into steam temperature? (latent heat of vaporization is 2.26 x $ 10^6$ ) A) Q = 5.9 X $ 10^6$ J. B) M = 5.9 X $ 10^6$ J. C) C = 5.9 X $ 10^6$ J. D) $ \Delta$ T = 5.9 X $ 10^6$ J. Show Answer Correct Answer: A) Q = 5.9 X $ 10^6$ J. 13. How many sig figs are there? 100.00 A) 1. B) 3. C) 4. D) 5. Show Answer Correct Answer: D) 5. 14. Convert 0.25 m to mm A) 25. B) 2.5. C) 250. D) 0.025. Show Answer Correct Answer: C) 250. 15. Energy Transferred is equal to A) Potential Difference x Current. B) Potential Difference x Charge. C) Potential Difference / Current. D) Potential Difference / Charge. Show Answer Correct Answer: B) Potential Difference x Charge. 16. Which of the following statements about the kinetic theory of gases is NOT true: A) All molecules move with the same speed. B) Their average kinetic energy is directly proportional to the absolute temperature. C) All molecules make elastic collisions with each other and the walls of the container. D) The molecules travel in straight lines until they collide. Show Answer Correct Answer: A) All molecules move with the same speed. 17. Newton's second law uses which equation? A) V = at. B) E = ms2. C) F = ma. D) F = mv-ma. Show Answer Correct Answer: C) F = ma. 18. When using a displacement can what is the mass of the object in it equal to A) The change in liquid level in the can. B) The amount of liquid collected in the second beaker. C) The volume of liquid collected in the second beaker. D) None of those above. Show Answer Correct Answer: D) None of those above. 19. Absolute 0 (0 kelvin) is ..... degrees A) -304. B) -283. C) -273. D) None of above. Show Answer Correct Answer: C) -273. 20. The product of Force and Distance is A) Work. B) Impulse. C) Momentum. D) None of above. Show Answer Correct Answer: A) Work. ← 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