Physics part 1
Part 1
Physics 10 MCQ
1. **What is the SI unit of force?**
- A) Joule
- B) Pascal
- C) **Newton**
- D) Watt
- **Answer: C) Newton**
2. **Which of the following is **NOT correct** about **Vectors addition**?
- A) Vectors addition is associative
- B) Vectors addition is commutative
- C) Vectors of different natures can be added
- D) None of the above
- **Answer: C) Vectors of different natures can be added**
3. **Which branch of Physics deals with the study of **Atomic Nuclei**?
- A) Nuclear Physics
- B) Bio Physics
- C) Atomic Physics
- D) None of the above
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- **Answer: A) Nuclear Physics*
4. **If the momentum of an object is doubled, then what happens to its kinetic energy?**
- A) It remains the same
- B) It is halved
- C) It is doubled
- D) **It is quadrupled**
- **Answer: D) It is quadrupled**
5. **What is the phenomenon of splitting of white light into its component colors called?**
- A) Reflection
- B) Refraction
- C) **Dispersion**
- D) Diffraction
- **Answer: C) Dispersion**
6. **Which law states that the pressure of a given mass of gas varies inversely with its volume at constant temperature?**
- A) Charles's Law
- B) **Boyle's Law**
- C) Gay-Lussac's Law
- D) Avogadro's Law
- **Answer: B) Boyle's Law**
7. **What is the work done by a force of 1 Newton moving an object through a distance of 1 meter?**
- A) **1 Joule**
- B) 1 Pascal
- C) 1 Watt
- D) 1 Newton-meter
- **Answer: A) 1 Joule**
8. **Which of the following particles has the least mass?**
- A) Proton
- B) Neutron
- C) **Electron**
- D) Alpha particle
- **Answer: C) Electron**
9. **What is the approximate speed of light in a vacuum?**
- A) **3 x 10^8 m/s**
- B) 3 x 10^6 m/s
- C) 3 x 10^10 m/s
- D) 3 x 10^12 m/s
- **Answer: A) 3 x 10^8 m/s**
10. **Which principle explains the lift force on an airplane wing?**
- A) Pascal's Principle
- B) Archimedes' Principle
- C) **Bernoulli's Principle**
- D) Newton's Third Law
- **Answer: C) Bernoulli's Principle**
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