This quiz works best with JavaScript enabled. Home > Science > Physics > Physics – Quiz 27 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Physics Quiz 27 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which of the following is the area under the line of acceleration vs time graph? A) Acceleration. B) Displacement. C) Time. D) Velocity. Show Answer Correct Answer: D) Velocity. 2. In which of the following industries is mica as a raw material? A) Cement. B) Electrical. C) Iron and Steel. D) Glass and Pottery. Show Answer Correct Answer: B) Electrical. 3. Which device is used to measure weight? A) Scales. B) Balance. C) Newton meter. D) All of the answers are correct. Show Answer Correct Answer: C) Newton meter. 4. It can be used to make a new unit larger or smaller than the base unit A) Derived units. B) Metric system. C) Unit prefixes. D) British or english system. Show Answer Correct Answer: C) Unit prefixes. 5. Where would time run the slowest? A) At rest on the surface of the Earth. B) At rest on the top of a tall mountain on Earth. C) On the ISS (international space station). D) None of above. Show Answer Correct Answer: A) At rest on the surface of the Earth. 6. Three resistors connected in parallel each carry currents labeled I1, I2 and I3. Which of the following expresses the value of the total current IT in the combined system? A) IT = I1 + I2 + I3. B) IT = (1/I1 + 1/I2 + 1/I3). C) IT = I1 = I2 = I3. D) IT = (1/I1 + 1/I2 + 1/I3)-1. Show Answer Correct Answer: A) IT = I1 + I2 + I3. 7. A biker with a mass of 75 kg moves along the path with a constant velocity of 5 m/s. What is the biker's momentum? A) 25 m/s. B) 375 m/s. C) 25 kg m/s. D) 375 kg m/s. Show Answer Correct Answer: D) 375 kg m/s. 8. In the absence of air resistance, objects fall at constant A) Speed. B) Velocity. C) Acceleration. D) All of the above. Show Answer Correct Answer: C) Acceleration. 9. What is the formula for ohms law? A) 1+2=3. B) R X E = I. C) V =I x R. D) E= MC squared. Show Answer Correct Answer: C) V =I x R. 10. Which of the following is TRUE about electric charge? A) It can be lost. B) It can be destroyed. C) It can be transferred from atom to atom. D) It is created from a chemical reaction. Show Answer Correct Answer: C) It can be transferred from atom to atom. 11. Sound waves in air are A) Polarised. B) Transverse. C) Longitudinal. D) Electromagnetic. Show Answer Correct Answer: C) Longitudinal. 12. If a red-green flag is seen in green light it appears to be of which of the following colour? A) Black. B) Green. C) Red - Black. D) Black - Green. Show Answer Correct Answer: D) Black - Green. 13. What do all waves transfer? A) Light. B) Sound. C) Heat. D) Energy. Show Answer Correct Answer: D) Energy. 14. A useful method of expressing very small or very large numbers is A) Scientific notation. B) Arabic numerals. C) The metric system. D) Roman numerals. Show Answer Correct Answer: A) Scientific notation. 15. Some capacitors consist of two parallel plates separated by an insulating material called the ..... A) Dielectric. B) Capacitors. C) Condensers. D) Insulators. Show Answer Correct Answer: A) Dielectric. 16. What is the unit for gravitational field strength? A) N/kg. B) N. C) KN. D) N/kg/$^ \circ$C. Show Answer Correct Answer: A) N/kg. 17. The number of significant figures in 10001 COVID-19 cases is ..... A) Unlimited. B) Two. C) Five. D) Three. Show Answer Correct Answer: A) Unlimited. 18. Curved mirror whose reflecting surface is the inner part is A) Concave. B) Convex. C) Plane. D) Diffuse. Show Answer Correct Answer: A) Concave. 19. A property that can be measured by a number. A) Chemical Property. B) Intensive Property. C) Extensive Property. D) Physical Property. Show Answer Correct Answer: D) Physical Property. 20. Radium-226 undergoes alpha decay to become radon-222. The equation is:226 Ra 222 Rn + 4 He. 88 86 2Calculate the energy released if Ra-226 = 226.025406 u Rn-222 = 222.017574 u He = 4.002603 u A) 7.81 x 10-11 J. B) 7.81 x 10-12 J. C) 7.81 x 10-13 J. D) 7.81 x 10-14 J. Show Answer Correct Answer: C) 7.81 x 10-13 J. ← 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