This quiz works best with JavaScript enabled. Home > Science > Physics > Physics – Quiz 24 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Physics Quiz 24 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The statement which correctly represents Ohm's law A) V = IR. B) V = R/I. C) R = VI. D) I = R/V. Show Answer Correct Answer: A) V = IR. 2. Which quantity is measured in newtons? A) Density. B) Energy. C) Pressure. D) Weight. Show Answer Correct Answer: D) Weight. 3. Two or more elements chemically joined together and are represented by a chemical formula are known as ..... A) Elements. B) Mixtures. C) Compounds. D) None of above. Show Answer Correct Answer: C) Compounds. 4. Identify the following quantities as scalar or vector:the mass of an object, the number of leaves on a tree and wind velocity. A) Vector, scalar, scalar. B) Vector, scalar, vector. C) Scalar, scalar, vector. D) Scalar, vector, vector. Show Answer Correct Answer: D) Scalar, vector, vector. 5. What is wavelength? A) Total amount of time it takes a wave to move through one cycle. B) Distance between a point on a wave and the EXACT same point on the next wave. C) Number of crests and troughs a wave produces in one minute. D) Length of a series of waves traveling from a source. Show Answer Correct Answer: B) Distance between a point on a wave and the EXACT same point on the next wave. 6. What is the equation for frequency? A) F = t/n. B) F = 1/T. C) F = 2 T. D) None of above. Show Answer Correct Answer: B) F = 1/T. 7. When did we first detect gravitational waves? A) 1916. B) 1905. C) 2016. D) 1972. Show Answer Correct Answer: C) 2016. 8. Accelerations can be Positive or negative. This positive and negative represents the ..... A) Direction of the force acting on the object. B) Direction of the motion. C) Frame of reference. D) None of above. Show Answer Correct Answer: A) Direction of the force acting on the object. 9. Which of the following unit will be used for the large distance? A) Meter. B) Centimeter. C) Kilometer. D) Miles. Show Answer Correct Answer: C) Kilometer. 10. In a standing wave the distance between a node and adjacent antinode is..... A) $\lambda$ / 2. B) $\lambda$ / 4. C) 3$\lambda$ / 2. D) 3$\lambda$ / 4. Show Answer Correct Answer: B) $\lambda$ / 4. 11. A difference between Newton's law of gravity and Coulomb's law is that only one of these ..... A) Is a fundamental physical law. B) Uses a proportionality constant. C) Invokes the inverse-square law. D) Involves repulsive as well as attractive forces. Show Answer Correct Answer: D) Involves repulsive as well as attractive forces. 12. A spring, which obeys Hooke's law, has an unstretched length of 10 cm. A load of 20N is suspended from the spring. The new length of the spring is 36 cm. What is the spring constant k of the spring? A) 0.56 N/ cm. B) 0.77 N/ cm. C) 1.3 N/ cm. D) 1.8 N/ cm. Show Answer Correct Answer: B) 0.77 N/ cm. 13. According to Einstein, why do objects accelerate around massive bodies? A) A force is pulling them. B) Space is pushing them. C) They don't. D) None of above. Show Answer Correct Answer: B) Space is pushing them. 14. The form of matter are..... A) 1. B) 2. C) 3. D) 4. Show Answer Correct Answer: C) 3. 15. What is torque measured in? A) Ns. B) Nmm. C) Nm. D) Ncm. Show Answer Correct Answer: C) Nm. 16. Moment of inertia is A) Vector. B) Scalar. C) Tensor. D) Phasor. Show Answer Correct Answer: C) Tensor. 17. What is beam? A) A group of rays. B) A group of parallel rays. C) None of these. D) None of above. Show Answer Correct Answer: A) A group of rays. 18. Hot Liquids flow faster than cold liquids because of A) Viscosity. B) Surface tension. C) Piscosity. D) Adativity. Show Answer Correct Answer: A) Viscosity. 19. Combinations of two or more pulleys working together reduce the force needed to lift a load A) Inclined plane. B) Pulley system. C) Load. D) Spring scale. Show Answer Correct Answer: B) Pulley system. 20. Newton explained the relationship between crash forces and inertia in his ..... Law of Motion. A) Forst. B) Second. C) Third. D) None of above. Show Answer Correct Answer: A) Forst. ← 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