This quiz works best with JavaScript enabled. Home > Science > Physics > Physics Basics > Physics – Quiz 35 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Physics Quiz 35 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Two forces act on an object.In which situation is it IMPOSSIBLE for the object to be in equilibrium? A) The two forces act in the same direction. B) The two forces act through the same point. C) The two forces are of the same type. D) The two forces are the same size. Show Answer Correct Answer: A) The two forces act in the same direction. 2. What is the radioisotope used to determine the age of a fossil? A) Carbon-14. B) Iodine-131. C) Americium-241. D) Uranium-238. Show Answer Correct Answer: A) Carbon-14. 3. What is the symbol for Thermal Energy? A) Q. B) T. C) M. D) C. Show Answer Correct Answer: A) Q. 4. David walks 3 km north, and then turns east and walks 4 km. What is the distance? A) 7 km. B) 3 km. C) 4 km. D) 1 km. Show Answer Correct Answer: A) 7 km. 5. Time taken for a sample of a radioactive nuclei to decay to half of its initial number is the definition for ..... A) Half-life. B) Radioactive decay. C) Chain reaction. D) Period of a nucleus. Show Answer Correct Answer: A) Half-life. 6. Now the cart is being pulled along a horizontal track by an external force (a weight hanging over the table edge) and accelerating. It fires a ball straight out of the cannon as it moves. After it is fired, what happens to the ball? A) It depends upon how much the track is tilted. B) It falls behind the cart. C) It falls in front of the cart. D) It falls right back into the cart. E) It remains at rest. Show Answer Correct Answer: B) It falls behind the cart. 7. Velocity is measured in ..... A) M/s/s. B) M/s. C) Degrees. D) Kg/h. Show Answer Correct Answer: B) M/s. 8. When air rushes out of a balloon and it moves upward. This is an example of which Law of Motion. A) Newton's First Law. B) Newton's Second Law. C) Newton's Third Law. D) None of above. Show Answer Correct Answer: C) Newton's Third Law. 9. An empty truck and a fully loaded truck are next to each other at a traffic light. When the light turns green, the lighter truck increases speed more quickly. Which of these best explains this situations A) Newton's first law. B) Newton's second law. C) Newton's third law. D) Conservation of momentum. Show Answer Correct Answer: B) Newton's second law. 10. Which color bends the most (greatest refraction) when entering a transparent material. A) Red. B) Yellow. C) Green. D) Violet. Show Answer Correct Answer: D) Violet. 11. Heat energy is also called ..... energy. A) Chemical. B) Electrical. C) Mechanical. D) Thermal. Show Answer Correct Answer: D) Thermal. 12. The Theory of the Conservation of Energy states- A) Energy can be created, just not destroyed. It changes its form from one type to another. B) Energy can never be created nor destroyed. It can only change its form from one type to another. C) The total energy in our Universe changes, as different forms of energies can be transformed from each other under certain circumstances. D) Energy transformations do not passively occur in our lives, rather we actively make use of energies and transform energies. Show Answer Correct Answer: B) Energy can never be created nor destroyed. It can only change its form from one type to another. 13. Which of the following has the most kinetic energy? A) A 20 kg toddler running at 5 m/s. B) A 50 kg toddler running at 30 m/s. C) A 90 kg toddler running at 30 m/s. D) A 100 kg toddler running at 2 m/s. Show Answer Correct Answer: C) A 90 kg toddler running at 30 m/s. 14. In applying Charles's law, temperature must be on the ..... scale. A) Kelvin. B) Celsius. C) Fahrenheit. D) Pascal. Show Answer Correct Answer: A) Kelvin. 15. Models in physics A) Take into account surroundings not concerned with the system. B) Simplify phenomena. C) Are never pictures. D) None of above. Show Answer Correct Answer: B) Simplify phenomena. 16. Which one of the following is a time measuring device: A) Odometer. B) Barometer. C) Speedometer. D) Sundial. Show Answer Correct Answer: D) Sundial. 17. An object that reflects all light that lands on it is called a A) Lens. B) Mirror. C) Glass. D) Non-luminous. Show Answer Correct Answer: B) Mirror. 18. How much energy is required to melt down a 2000 g of mercury? (latent heat of fusion is 1.14 x $ 10^4$ J/kg) A) 2.55 x $ 10^4$ J. B) 2.28 x $ 10^4$ J. C) 2, 280 x $ 10^4$ J. D) 3.28 x $ 10^4$ J. Show Answer Correct Answer: B) 2.28 x $ 10^4$ J. 19. An entire lake is heated by water from a hot spring at the bottom of the lake. What type of heat transfer is this? A) Convection. B) Conduction. C) Radiation. D) None of above. Show Answer Correct Answer: A) Convection. 20. What is the equation for gravitational potential energy? A) Ep = 1/2 mg. B) Ep = mg/h. C) Ep = mgh. D) Ep = 1/2 mgh. Show Answer Correct Answer: C) Ep = mgh. ← 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