This quiz works best with JavaScript enabled. Home > Science > Physics > Physics – Quiz 19 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Physics Quiz 19 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. An object that is accelerating may be ..... A) Speeding up. B) Slowing down. C) Turning around. D) All of these answers. Show Answer Correct Answer: D) All of these answers. 2. The magnitude of a null vector is A) 1. B) 2. C) 10. D) 0. Show Answer Correct Answer: D) 0. 3. What effect on the human body does 10-20 mA of electric current can make? A) Muscular contraction. B) Ventricular fibrillation. C) Electrodes stick to the body. D) No effect. Show Answer Correct Answer: C) Electrodes stick to the body. 4. Which of the following is NOT considered a method of heat transfer? A) Convection. B) Conduction. C) Diffusion. D) None of above. Show Answer Correct Answer: C) Diffusion. 5. A vector is directed towards the north with a very large magnitude. How will you describe the x-component? A) Very large. B) Average. C) Equal to its y-component. D) Zero. Show Answer Correct Answer: D) Zero. 6. What is the best definition for a "hypothesis" below. A) An observation of an event that is known to have happened. B) An opinion. C) A set of rules that governs our universe. D) A proposed explanation based on evidence as the starting point for further investigation. Show Answer Correct Answer: D) A proposed explanation based on evidence as the starting point for further investigation. 7. What is Jesus' name in the Quran? A) Isa. B) Yeshua. C) Jesu. D) Yesus. Show Answer Correct Answer: A) Isa. 8. The maximum displacement from equilibrium of a particle is 1 m and its maximum acceleration is 1.57 m s-2. The period of the particle will be A) 1.25 s. B) 0.63 s. C) 0.20 s. D) 5.03 s. Show Answer Correct Answer: D) 5.03 s. 9. Which of the following is a passive device? A) Battery. B) Capacitor. C) Rectifier. D) Transistor. Show Answer Correct Answer: B) Capacitor. 10. Which is a unit of acceleration? A) G/ cm3. B) M / s. C) M / s2. D) N/ m. Show Answer Correct Answer: C) M / s2. 11. The net force is A) The force you feel when you catch a fish in a net. B) The force acting upward on a sky diver. C) The combination of all of the forces acting on an object. D) Always unbalanced. Show Answer Correct Answer: C) The combination of all of the forces acting on an object. 12. Minimum number of unequal vectors which can give zero resultant are A) Zero. B) One. C) Two. D) Three. Show Answer Correct Answer: D) Three. 13. Which of the following refers to the function of a capacitor? A) It dissipates voltage across the circuit. B) It absorbs and stores electrical charge. C) It acts as the main source of electric potential. D) It allows DC signals to pass through. Show Answer Correct Answer: B) It absorbs and stores electrical charge. 14. If both the volume and the absolute temperature of a confined gas are doubled, the pressure will A) Not change. B) Be halved. C) Become four times as great. D) None of above. Show Answer Correct Answer: A) Not change. 15. Ampere-hour is the unit of which among the following? A) Power. B) Energy. C) Amount of charge. D) Intensity of current. Show Answer Correct Answer: C) Amount of charge. 16. Which is incorrect? A) E = energy released (J). B) M = mass defect (kg). C) M = total mass (kg). D) C = speed of light. Show Answer Correct Answer: C) M = total mass (kg). 17. Find the x-and y-components for a displacement vector that is 23.8 km and 45.0$^ \circ$ south of east. A) +16.8 km, +16.8 km. B) -16.8 km, +16.8 km. C) +16.8 km, -16.8 km. D) -16.8 km, +16.8 km. Show Answer Correct Answer: C) +16.8 km, -16.8 km. 18. A merry-go-round, initially at rest, rotates with a constant acceleration of 0.05 rad/s2 . What is the time interval required for it to reach a 23-rad displacement? A) 30 s. B) 35 s. C) 40 s. D) 45 s. Show Answer Correct Answer: A) 30 s. 19. How many meters are there in 500 centimeters? A) 5meters. B) 0.5meters. C) 50meters. D) 0.50meters. Show Answer Correct Answer: A) 5meters. 20. Charge on an electron is (in Coloumb) A) 6.610 $ \times$ $ 10^{-6}$. B) 1.6 $ \times$ $ 10^{-6}$. C) 1.6 $ \times$ $ 10^{-19}$. D) 1.56 $ \times$ $ 10^{-16}$. Show Answer Correct Answer: C) 1.6 $ \times$ $ 10^{-19}$. ← 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