This quiz works best with JavaScript enabled. Home > Science > Physics > 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. According to Newton's first law of motion, a moving object that is not acted on by an unbalanced force will A) Remain in motion. B) Eventually come to a stop. C) Change its momentum. D) Accelerate. Show Answer Correct Answer: A) Remain in motion. 2. If we drop a steel sphere and a ping pong ball, the steel sphere will ..... A) Hit the ground first because it has more mass. B) Hit the ground second because it takes longer to accelerate. C) Hit the ground at the same time as the ping pong ball. D) None of above. Show Answer Correct Answer: C) Hit the ground at the same time as the ping pong ball. 3. What is a gravitational field? A) The amount of matter an object is made from. B) The force of gravity acting on an object. C) The area around an object where the force of gravity is experienced. D) None of above. Show Answer Correct Answer: C) The area around an object where the force of gravity is experienced. 4. In which city will be the olympic games 2020? A) Tokio, Japan. B) Seul, South Korea. C) Rome, Italy. D) Moscow, Russia. Show Answer Correct Answer: A) Tokio, Japan. 5. Which of the following is not a unit of pressure A) Pa. B) Bar. C) Watt. D) Torr. Show Answer Correct Answer: C) Watt. 6. Which of the following formula used to measure how long does the journey take place. A) Time= S/d. B) Time= d/S. C) Time= S x d. D) Time= d x S. Show Answer Correct Answer: B) Time= d/S. 7. A ..... force is the total force felt by an object. A) Sum. B) Net. C) Strong. D) Balanced. Show Answer Correct Answer: B) Net. 8. Select the list which contains only SI basic units. A) Liter, meter, second, watt. B) Joule, kelvin, kilogram, watt. C) Candela, kelvin, meter, second. D) Joule, newton, second, watt. Show Answer Correct Answer: C) Candela, kelvin, meter, second. 9. Find the magnitude of the force between two charges of 1.0 C each which are 1.0 meter apart? A) 9E-9 N. B) 9E9 N. C) 1.1E10 N. D) 1.1E-10 N. Show Answer Correct Answer: B) 9E9 N. 10. Give the equivalent of unit of the give units1 gal A) 2.54 cm. B) 3.788 liters. C) 4.186 joules. D) Accuracy. Show Answer Correct Answer: B) 3.788 liters. 11. Of the following properties of a wave, the one that is independent of the other is its A) Velocity. B) Amplitude. C) Frequency. D) Wavelength. Show Answer Correct Answer: B) Amplitude. 12. Rectifiers are used to convert A) Low voltage to high voltage. B) High voltage to low voltage. C) Alternating current to Direct current. D) Direct current to Alternating current. Show Answer Correct Answer: C) Alternating current to Direct current. 13. What is the equivalence principle? A) Gravity and acceleration are the same thing. B) Constant speed and at rest are the same thing. C) Gravity is curvature of space. D) Gravity and constant velocity are the same thing. Show Answer Correct Answer: A) Gravity and acceleration are the same thing. 14. Find the maximum velocity for the overturn of a car moving on a circular track of radius 100 m. The co-efficient of friction between the road and tyre is 0.2 A) 0.14 m/s. B) 1.4 km/s. C) 14 m/s. D) 140 m/s. Show Answer Correct Answer: C) 14 m/s. 15. Current times Resistance equals (I X R) A) Power. B) Voltage. C) Amperage. D) Ohm. Show Answer Correct Answer: B) Voltage. 16. The metric prefix for one one-thousandth is A) Milli. B) Centi. C) Kilo. D) Mega. Show Answer Correct Answer: A) Milli. 17. If a baseball and a cannonball are dropped from the same height at the same time, which ball will hit the ground first? A) The cannonball. B) The baseball. C) The balls land at the same time. D) The ball with the larger volume. Show Answer Correct Answer: C) The balls land at the same time. 18. An object's stored energy, known as ..... energy, can be determined by knowing the object's position and its condition. A) Kinetic. B) Chemical. C) Thermal. D) Potential. Show Answer Correct Answer: D) Potential. 19. The apparatus used in submarines to give clear view of the objects on the surface of the ocean or ground is known as..... A) Sectant. B) Telescope. C) Periscope. D) Stereoscope. Show Answer Correct Answer: C) Periscope. 20. Which of the following data is NOT a vector quantity? A) 5 km, west. B) 15 m, north. C) 35 m. D) 20 km, south. Show Answer Correct Answer: C) 35 m. ← 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