This quiz works best with JavaScript enabled. Home > Science > Physics > Physics Basics > Physics – Quiz 28 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Physics Quiz 28 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The distance between the Earth and the Sun is around 150, 000, 000 km. Express this value in scientific notation. A) 15 x 10 7 km. B) 1.5 x 107 km. C) 15 x 108 km. D) 1.5 x 108 km. Show Answer Correct Answer: D) 1.5 x 108 km. 2. If a cheetah runs 180 miles in 3 hours, what is its average speed? A) 60 hours. B) 60 miles. C) 60 miles/hour. D) 60 miles/second/second. Show Answer Correct Answer: C) 60 miles/hour. 3. Which of the following is not a fundamental unit? A) Newton. B) Kilogram. C) Second. D) Candela. Show Answer Correct Answer: A) Newton. 4. When an object is in motion, it's ..... must change. A) Shape. B) Size. C) Acceleration. D) Position. Show Answer Correct Answer: D) Position. 5. According to the laws of reflection, if i = angle of incidence and r = angle of reflection, A) I = r. B) I > r. C) R > i. D) I is not equal to r. Show Answer Correct Answer: A) I = r. 6. The color of light is determined by ..... of the light waves? A) The medium. B) The frequency. C) The amplitude. D) The speed. Show Answer Correct Answer: B) The frequency. 7. It is a branch of physics that deals with the behavior of objects and systems in response to various forces. A) Classical Physics. B) Mechanics. C) Thermodynamics. D) Physics. E) Relativity. Show Answer Correct Answer: B) Mechanics. 8. Morgan walks 10 miles South. Trevor walks 10 miles North in the same amount of time. They have: A) Different average speeds. B) Different velocities. C) Same velocity. D) Same motion. Show Answer Correct Answer: B) Different velocities. 9. If an object has more mass, then it will A) Weigh more. B) Weigh less. C) Weigh the same as an object with less mass. D) Always have more volume than an object with less mass. Show Answer Correct Answer: A) Weigh more. 10. The relationship between Work and Power is A) P = W / t in any units of time. B) P = t / W. C) P = W / t in only units of seconds. D) P = W x t. Show Answer Correct Answer: C) P = W / t in only units of seconds. 11. -If you wanted to measure the distance from here to Dubai City, you would use A) Meters. B) Centimeters. C) Millimeters. D) Kilometers. Show Answer Correct Answer: D) Kilometers. 12. In a transverse wave, the disturbance is ..... to the direction the wave is traveling. A) Parallel. B) Vertex. C) Perpendicular. D) Intersecting line. Show Answer Correct Answer: C) Perpendicular. 13. If two objects labelled B and C are both at thermal equilibrium with object A, which of the following must be true? A) Objects B and C are in thermal equilibrium with each other. B) Object B has a higher temperature than object C. C) Object C has a higher temperature than object B. D) Objects B and C are not in thermal equilibrium with each other. Show Answer Correct Answer: A) Objects B and C are in thermal equilibrium with each other. 14. The units of acceleration are ..... A) M/s. B) M s. C) M s2. D) M/s2. Show Answer Correct Answer: D) M/s2. 15. Power is the ..... A) Conservation of momentum. B) Energy of a moving object. C) Rate of doing work. D) None of above. Show Answer Correct Answer: C) Rate of doing work. 16. Which of the following lists includes only vector quantities? A) Speed, distance, time. B) Speed, displacement, time. C) Velocity, distance, acceleration. D) Velocity, displacement, acceleration. Show Answer Correct Answer: D) Velocity, displacement, acceleration. 17. The slope of a distance vs time graph A) Speed. B) Velocity. C) Acceleration. D) None of above. Show Answer Correct Answer: A) Speed. 18. A woman lifts 20 bricks, each of weight 6N.What other information is needed to calculate the useful work done in lifting the bricks? A) The distance she lifts the bricks. B) The mass of the bricks. C) The time taken to lift the bricks. D) The volume of the bricks. Show Answer Correct Answer: A) The distance she lifts the bricks. 19. What is a non renewable resource? A) Water. B) Wind. C) Coal. D) Biomass. Show Answer Correct Answer: C) Coal. 20. Which of these best describes why your weight (on Earth) would change on another planet? A) Weight doesn't change, no matter where you are. B) Different planets have different gravitational pulls. C) In general, the smaller the planet, the greater weight. D) Dehydration effects on different planets change weight. Show Answer Correct Answer: B) Different planets have different gravitational pulls. ← 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