This quiz works best with JavaScript enabled. Home > Science > Physics > Physics Basics > Physics – Quiz 10 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Physics Quiz 10 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. When an object gains electrons it becomes ..... A) Neutral. B) Positively charged. C) Negatively charged. D) None of above. Show Answer Correct Answer: C) Negatively charged. 2. Indicate which of the following physics symbols is NOT considered a variable? A) C. B) C. C) T. D) T. Show Answer Correct Answer: A) C. 3. Equation for work done A) Force x distance. B) Force / distance. C) Force-distance. D) Distance / force. Show Answer Correct Answer: A) Force x distance. 4. Which of the following physics symbols denote units? A) T. B) C. C) J. D) Y. Show Answer Correct Answer: C) J. 5. At a constant pressure, the ..... of a gas of fixed mass is directly proportional to its ..... A) Absolute temperature, specific heat capacity. B) Volume, absolute temperature. C) Surface area, volume. D) None of above. Show Answer Correct Answer: B) Volume, absolute temperature. 6. Choose the wrong statement'Gamma rays are ..... ' A) Low frequency electromagnetic wave. B) Rays with no mass. C) Neutral. D) Not charged. Show Answer Correct Answer: A) Low frequency electromagnetic wave. 7. What is the power required to lift a 10 kg object 5 m in the air in 2 s? A) 250 W. B) 25 W. C) 100 W. D) 4 W. Show Answer Correct Answer: A) 250 W. 8. Why is the sky blue? A) Because the atmosphere absorbs blue light and reflects the other colors. B) Because nitrogen and oxygen molecules scatter blue light more than the other colors. C) Because the ocean reflects its blue color to the sky. D) Because nitrogen and oxygen molecules scatter red and oranges away during the sunrise leaving blue for the day time. Show Answer Correct Answer: B) Because nitrogen and oxygen molecules scatter blue light more than the other colors. 9. X M= 20, M =? A) 3. B) 4. C) 5. D) 6. Show Answer Correct Answer: B) 4. 10. Formula for work A) W = F*d. B) W = F/d. C) W = F*m. D) W = F/m. Show Answer Correct Answer: A) W = F*d. 11. MOLECULES ARE MADE UP OF A) ATOMS. B) SOLIDS. C) MASS. D) VOLUME. Show Answer Correct Answer: A) ATOMS. 12. Energy required to change the state of a mass of liquid to a gas is known as ..... A) Specific Latent Heat of Fusion. B) Specific Heat Capacity. C) Boiling Energy. D) Specific Latent Heat of Vaporisation. Show Answer Correct Answer: D) Specific Latent Heat of Vaporisation. 13. In an experiment, photoelectric effect is observed in metal A when light with frequency (f ) falls on the metal. If the light frequency used in this experiment is doubled, the photoelectrons A) Will not be ejected. B) Will be ejected as observed in the previous. C) Will be ejected with greater number of photoelectrons. D) Will be ejected with greater kinetic energy. Show Answer Correct Answer: D) Will be ejected with greater kinetic energy. 14. What causes a falling object to accelerate? A) Weight. B) Starting speed. C) Direction object is falling. D) Gravity. Show Answer Correct Answer: D) Gravity. 15. Speed of light in a vacuum is A) Represented by the symbol "c". B) 3.00 X108 m/s. C) Is constant. D) All answers are correct. Show Answer Correct Answer: D) All answers are correct. 16. What is air's index of refraction? A) 2.42. B) 1.33. C) 1.00. D) 1.5-1.75. Show Answer Correct Answer: C) 1.00. 17. What is an hypothesis A) A guess. B) A testable, possible explanation for a problem. C) An observation. D) A question. Show Answer Correct Answer: B) A testable, possible explanation for a problem. 18. FOR A SPHERICAL MIRROR ..... IS TRUE. A) F = 2R. B) R = 2f. C) FR = 1/2. D) FR = 2. Show Answer Correct Answer: B) R = 2f. 19. What particles make up light? A) Photons. B) Neutrons. C) Protons. D) None of above. Show Answer Correct Answer: A) Photons. 20. In a nuclear reaction, 5.265 x 10-10 J of energy is released. What is the mass defect of this reaction in kg? A) 5.85 x 10-27. B) 4.74 x 107. C) 1.76 x 10-18. D) 1.58 x 10-2. Show Answer Correct Answer: A) 5.85 x 10-27. ← 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