This quiz works best with JavaScript enabled. Home > Science > Physics > Physics – Quiz 51 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Physics Quiz 51 (6 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Which object has the greatest weight? A) An object of mass 10 kg in a 15 N/ kg gravitational field. B) An object of mass 15 kg in a 13 N/ kg gravitational field. C) An object of mass 20 kg in a 9.0 N/ kg gravitational field. D) An object of mass 50 kg in a 3.0 N/ kg gravitational field. Show Answer Correct Answer: B) An object of mass 15 kg in a 13 N/ kg gravitational field. 2. Mr. Lee Jung Suk pushed a seesaw with a force of 10 N, 45$^ \circ$ with respect to the lever arm. The force he applied is 0.45 m away from the fulcrum. How much torque did he apply? A) 3.18 Nm. B) 5.18 Nm. C) 3.18 J. D) 5.18 J. Show Answer Correct Answer: A) 3.18 Nm. 3. Nuclear sizes are expressed in a unit named A) Tesla. B) Fermi. C) Newton. D) Angstrom. Show Answer Correct Answer: B) Fermi. 4. Sound produced at a point is heard by a person after 5 second, while the same sound is heard by another person after 6 seconds. If the speed of sound is 300 m/s, what could be the maximum and minimum A) 1.8 km, 0.15 km. B) 2.2 km, 0.20 km. C) 2.8 km, 0.25 km. D) 3.3 km, 0.30 km. Show Answer Correct Answer: D) 3.3 km, 0.30 km. 5. What would the circuit resistance be if a 7.5 Amp draw was present with the engine running and the charging system producing 15 Volts A) 15 Ohms. B) 4 Ohms. C) 0.3333 Ohms. D) 2 Ohms. Show Answer Correct Answer: D) 2 Ohms. 6. What is the net force? 100 N 230 N< ..... $\rightarrow$Note:Force is a vector quantity. You can apply vector addition here. A) 130 N, to the left. B) 130 N, to the right. C) 330 N, to the left. D) 330 N, to the right. Show Answer Correct Answer: B) 130 N, to the right. ← PreviousRelated 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