This quiz works best with JavaScript enabled. Home > Science > Physics > Physics – Quiz 16 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Physics Quiz 16 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What does Fe stand for? A) The electrostatic force. B) The symbol for iron. C) The constant for the charges. D) The charges of the particles. Show Answer Correct Answer: A) The electrostatic force. 2. A ball has a 17 J of kinetic energy and its mechanical energy is 25 J. If the ball has a mass of 3.2 kg, what is its height above the ground? A) 0.26 m. B) 0.52 m. C) 5.2 m. D) 25 m. Show Answer Correct Answer: A) 0.26 m. 3. UNIT OF LUMINOUS INTENSITY A) CANDELA. B) SEC. C) KG. D) METER. Show Answer Correct Answer: A) CANDELA. 4. In the noon the shadow will be? A) Shorter. B) Longer. C) Middium. D) None of above. Show Answer Correct Answer: A) Shorter. 5. Which of the following components is constant under projectile motion? A) Vertical velocity. B) Horizontal velocity. C) Horizontal displacement. D) Horizontal acceleration. Show Answer Correct Answer: B) Horizontal velocity. 6. Express 23400 in proper scientific notation. A) 2.3 x 10 3. B) 2.34 x 10 4. C) 2.30 x 10 5. D) 2.34 x 10 3. Show Answer Correct Answer: B) 2.34 x 10 4. 7. The mass which is lost during the decay is called the A) Mass. B) Effective mass. C) Mass defect. D) Mass of proton. Show Answer Correct Answer: C) Mass defect. 8. What is the SI unit of measurement for force? A) Lbf. B) Kilograms. C) Newtons. D) $m/sec^2 $. Show Answer Correct Answer: C) Newtons. 9. The equation for Ohm's Law is A) $ V\ =\ I\ R$. B) $ V\ =\ \frac{I}{R}$. C) $ V\ =\ \frac{R}{I}$. D) $ R\ =\ \frac{I}{V}$. Show Answer Correct Answer: A) $ V\ =\ I\ R$. 10. The distance between two charges doubles at the same time that the charge on each also doubles. What happens to the electric force? A) Doubles. B) Quadruples. C) Cut in half. D) No change. Show Answer Correct Answer: D) No change. 11. What electromagnetic wave . has . the shortest wavelengths and the highest frequencies? A) Gamma Rays. B) Ultraviolet Rays. C) Radio Waves. D) X Rays. Show Answer Correct Answer: A) Gamma Rays. 12. An ice crystal falls vertically from a cloud. What happens to the acceleration of the ice crystal as it falls? A) It decreases because of air resistance. B) It decreases because of gravity. C) It increases because of air resistance. D) It increases because of gravity. Show Answer Correct Answer: A) It decreases because of air resistance. 13. The angle of incidence of a light ray that strikes a mirror is 40 degrees. What will be its angle of reflection? A) 20 degrees. B) 40 degrees. C) 60 degrees. D) 80 degrees. Show Answer Correct Answer: B) 40 degrees. 14. At what temperature will the density of water be maximum? A) 0$^ \circ$C. B) 4$^ \circ$C. C) - 4$^ \circ$C. D) 32$^ \circ$C. Show Answer Correct Answer: B) 4$^ \circ$C. 15. Clocks closer to a gravitational source run ..... A) Slower. B) Faster. C) The same. D) None of above. Show Answer Correct Answer: A) Slower. 16. What is the number of wavefronts per second that pass a fixed point? A) Amplitude. B) Frequency. C) Speed. D) Wavelength. Show Answer Correct Answer: B) Frequency. 17. If x =-2 and y = 5, then 3x2y = A) 180. B) -180. C) 60. D) -60. Show Answer Correct Answer: C) 60. 18. What year did Einstein complete General Relativity? A) 1905. B) 1916. C) 1922. D) 1919. Show Answer Correct Answer: B) 1916. 19. Physical quantities derived from base quantities through multiplication, division or a combination of both operations are A) Physical quantities. B) Base quantities. C) Derived quantities. D) Scalar quantities. Show Answer Correct Answer: C) Derived quantities. 20. If doubling the voltage across a resistor doubles the current through the resistor, then A) The resistor value decreased. B) The resistor value did not change. C) The resistor value increased. D) It is impossible to determine the change in the resistor value. Show Answer Correct Answer: B) The resistor value did not change. ← PreviousNext →Related QuizzesScience QuizzesPhysics Quiz 1Physics Quiz 2Physics Quiz 3Physics Quiz 4Physics Quiz 5Physics Quiz 6Physics Quiz 7Physics Quiz 8Physics Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books