This quiz works best with JavaScript enabled. Home > Science > Physics > Physics Basics > Physics – Quiz 40 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Physics Quiz 40 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. If a dog travels a distance of 10 meters, and has a speed of 15 m/s. What is the time? A) 1.5 s. B) 150 s. C) 0.7 s. D) 6.7 s. Show Answer Correct Answer: C) 0.7 s. 2. All EM waves travel at A) Different speeds. B) The speed of sound. C) The speed of light. D) The speed of a vacuum. Show Answer Correct Answer: C) The speed of light. 3. Which statement about models is not correct? A) Models describe only part of reality. B) Models help build hypotheses. C) Models help guide experimental design. D) Models manipulate a single variable or factor in an experiment. Show Answer Correct Answer: D) Models manipulate a single variable or factor in an experiment. 4. ..... is directly proportional to the Force and inversely proportional to the mass A) Acceleration. B) Velocity. C) Time. D) None of above. Show Answer Correct Answer: A) Acceleration. 5. The slope of a velocity vs time graph A) Speed. B) Distance. C) Acceleration. D) None of above. Show Answer Correct Answer: C) Acceleration. 6. Friction is ..... A) The force that one surface exerts on another when they rub against one another. B) The force that causes an object to accelerate. C) When gravity causes an object to stop moving. D) None of above. Show Answer Correct Answer: A) The force that one surface exerts on another when they rub against one another. 7. What is a compass A) An instrument on a vehicle dashboard indicating its speed. B) An instrument for measuring and indicating temperature. C) An instrument used for navigation and orientation that shows direction. D) None of above. Show Answer Correct Answer: C) An instrument used for navigation and orientation that shows direction. 8. A 400 kg car rests in the drive way. Calculate the normal force acting on the car? A) 400 N. B) 3, 924 N. C) 40.77 N. D) Not enough information. Show Answer Correct Answer: B) 3, 924 N. 9. Based on the information in the passage, how can friction be described? A) Friction can be described as a force that acts on a object in motion and can cause the object to stop. B) Friction can be described as a force that acts on an object in motion and can cause the object to speed up. C) Friction can be described as the path an object takes after a force acts on it and causes it to move. D) Friction can be described as the path an object takes when a force acts on it inside a vacuum. Show Answer Correct Answer: A) Friction can be described as a force that acts on a object in motion and can cause the object to stop. 10. A simple pendulum takes 32 seconds to complete 20 oscillations. The time period of this pendulum is: A) 12 seconds. B) 1.8 seconds. C) 1.6 seconds. D) 52 seconds. Show Answer Correct Answer: C) 1.6 seconds. 11. Newton's 1st law is often called the ..... A) Newton's 2nd law. B) Action-reaction law. C) Law of equality. D) Law of inertia. Show Answer Correct Answer: D) Law of inertia. 12. The energy transferred between objects due to a difference in temperature A) Temperature. B) Heat. C) Calorimetry. D) None of above. Show Answer Correct Answer: B) Heat. 13. A 80 kg skydiver is free falling at a constant velocity of 19 m/s. What is the net (total) force acting on her? A) 1, 520 N. B) 0 N. C) 4.21 N. D) Not enough information to answer. Show Answer Correct Answer: B) 0 N. 14. The same small cart is now rolling down an inclined track 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: D) It falls right back into the cart. 15. When a plastic rod is rubbed with wool, the wool acquires a positive charge because A) Protons are transferred from the wool to the rod. B) Protons are transferred from the rod to the wool. C) Electrons are transferred from the rod to the wool. D) Electrons are transferred from the wool to the rod. Show Answer Correct Answer: D) Electrons are transferred from the wool to the rod. 16. What is the concept used in the measurement of temperature using a thermometer? A) Specific heat capacity. B) Thermal equilibrium. C) Thermal convection. D) Thermal resistance. Show Answer Correct Answer: B) Thermal equilibrium. 17. Which of the following colors of visible light has the highest frequency? A) Blue. B) Green. C) Orange. D) Red. E) Violet. Show Answer Correct Answer: E) Violet. 18. Force on a spring is given by A) Spring constant / extension. B) Spring constant x extension. C) 1/2 x spring constant x extension2. D) Spring constant / extension2. Show Answer Correct Answer: B) Spring constant x extension. 19. The half-life or arsenic is 18 days. A sample contains a certain amount of arsenic. After 72 days, only 5 g of the arsenic still remains. What is the initial mass of the arsenic? A) 80 g. B) 160 g. C) 90 g. D) 72 g. Show Answer Correct Answer: A) 80 g. 20. A sled sliding on a flat, icy surface with a constant velocity is best described by A) Newton's first law of motion for objects at rest. B) Newton's first law of motion for objects in motion. C) Newton's second law of motion. D) Newton's third law of motion. Show Answer Correct Answer: B) Newton's first law of motion for objects in motion. ← 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