This quiz works best with JavaScript enabled. Home > Science > Physics > Physics – Quiz 30 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Physics Quiz 30 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The amount of charge carried by a lightning bolt is estimated at 10 Coulombs. What quantity of excess electrons is carried by the lightning bolt? A) 10 electrons. B) 6.25 x 1019 electrons. C) 1 electron. D) 0 electron. Show Answer Correct Answer: B) 6.25 x 1019 electrons. 2. Mirage is due to A) Magnetic disturbances in the atmosphere. B) Depletion of ozone layer in the atmosphere. C) Equal heating of different parts of the atmosphere. D) Unequal heating of different parts of the atmosphere. Show Answer Correct Answer: D) Unequal heating of different parts of the atmosphere. 3. If two traveling light waves are "180$^ \circ$ " out of phase, then the interaction between them is A) Complete constructive diffraction. B) Complete destructive diffraction. C) Complete constructive interference. D) Complete destructive interference. Show Answer Correct Answer: D) Complete destructive interference. 4. It is the energy possessed by moving objects. A) Kinetic energy. B) Potential energy. C) Gravitational energy. D) Mechanical energy. Show Answer Correct Answer: A) Kinetic energy. 5. It is a flow of electric charge. A) Ohm's Law. B) Electric Current. C) Direct Current (DC). D) Alternating Current (AC). Show Answer Correct Answer: B) Electric Current. 6. During a front impact collision of two unequally sized vehicles going at the same speed, a passenger in a larger vehicle will experience ..... force. A) More. B) Less. C) Equal. D) Random. Show Answer Correct Answer: B) Less. 7. Which of the following is the correct SI unit of temperature? A) Fahrenheit. B) Celsius. C) Kelvin. D) Rankine. Show Answer Correct Answer: C) Kelvin. 8. If a neutral atom has 22 protons in its nucleus, the number of surrounding electrons is A) Less than 22. B) 22. C) More than 22. D) Unknown. Show Answer Correct Answer: B) 22. 9. For a system in simple harmonic motion, which of the following is the number of cycles or vibrations per unit of time? A) Amplitude. B) Period. C) Frequency. D) Revolution. Show Answer Correct Answer: C) Frequency. 10. If two objects collide and stick together, what will happen to their overall momentum? A) Momentum will decrease. B) Momentum will increase. C) Momentum will stay the same. D) None of the above. Show Answer Correct Answer: C) Momentum will stay the same. 11. When scientists are looking for black holes they look for large sources of what type of light that is emitted from the area surrounding the black hole? A) X-ray. B) Gamma ray. C) Infrared. D) Visible. Show Answer Correct Answer: A) X-ray. 12. What is at the center of most (maybe all) galaxies? A) Stellar mass black hole. B) Supermassive black hole. C) Quasar. D) Neutron Star. Show Answer Correct Answer: B) Supermassive black hole. 13. The following are examples of derived quantities EXCEPT A) Electrical current. B) Momentum. C) Energy. D) Power. Show Answer Correct Answer: A) Electrical current. 14. An object has a net force of 0 N. This is an example of what kind of force? A) Balanced. B) Unbalanced. C) Action-reaction. D) Gravity. Show Answer Correct Answer: A) Balanced. 15. The same sound will seem louder if it travels through which of the following? A) Solid materials. B) Liquids. C) Air. D) Solids, liquids, or gases will sound the same. Show Answer Correct Answer: A) Solid materials. 16. Which of the following is a derived quantity? A) Mass. B) Speed. C) Length. D) Time. Show Answer Correct Answer: B) Speed. 17. The loudness of a sound is called ..... A) The sound wave. B) The volume. C) The amplitude. D) The pitch. Show Answer Correct Answer: B) The volume. 18. What SI unit is used to measure electric current? A) Seconds. B) Amperes. C) Kelvin. D) Mole. Show Answer Correct Answer: B) Amperes. 19. When is the pendulum at 0 velocity A) At its lowest point. B) At its highest point. C) It moves at a constant velocity. D) It is at rest. Show Answer Correct Answer: B) At its highest point. 20. The ability of a component or circuit to collect and store energy in the form of an electric charge. A) Permittivity of free space. B) Capacitance. C) Capacitors. D) Dielectric Strength. Show Answer Correct Answer: B) Capacitance. ← 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