Physics fundamentals - One Line Questions

1. What is the SI unit of resistance? — Ohm
2. What is the SI unit of electric potential difference (voltage)? — Volt
3. The SI unit of electric charge is: — Coulomb
4. Which principle explains the working of a hydraulic press? — Pascal's Principle
5. The SI unit of absorbed dose of ionizing radiation is: — Gray
6. The SI unit of temperature is: — Kelvin
7. The SI unit of sound intensity is: — Watt per square meter
8. The rate of doing work is defined as: — Power
9. What is the SI unit of inductance? — Henry
10. The SI unit of capacitance is: — Farad
11. What is the SI unit of electric permittivity? — Both A and C
12. Momentum is the product of mass and: — Velocity
13. What is the SI unit of radioactivity (activity)? — Becquerel
14. What is the SI unit of equivalent dose or dose equivalent of ionizing radiation? — Sievert
15. The SI unit of magnetic permeability is: — Both A and B
16. What is the SI unit of frequency? — Hertz
17. The SI unit of wavelength is: — Meter
18. The phenomenon of bending of light around obstacles is known as: — Diffraction
19. What is the SI unit of force? — Newton
20. What is the SI unit of pressure? — Pascal
21. The SI unit of power is: — Watt
22. The SI unit of specific heat capacity is: — Joule per kilogram-Kelvin
23. The SI unit of Planck's constant is: — Both A and B
24. What is the SI unit of luminous intensity? — Candela
25. What is the SI unit of illuminance? — Lux
26. The SI unit of luminous flux is: — Lumen
27. According to Archimedes' principle, the upward buoyant force that is exerted on a body immersed in a fluid, whether fully or partially submerged, is equal to the weight of the fluid that the body displaces. This principle is fundamental to understanding: — Buoyancy
28. Which of the following is a vector quantity? — Velocity
29. According to Newton's first law of motion, an object in motion will stay in motion with the same speed and in the same direction unless acted upon by an unbalanced force. This is also known as the law of: — Inertia
30. What is the SI unit of energy? — Joule
31. What is the SI unit of torque? — Newton-meter
32. The SI unit of the gravitational constant (G) is: — Both A and C
33. What is the SI unit of surface tension? — Newton per meter
34. The SI unit of impulse is: — Newton-second
35. Which law states that for every action, there is an equal and opposite reaction? — Newton's Third Law
36. What is the SI unit of the coefficient of linear expansion? — Per Kelvin
37. What is the SI unit of viscosity? — Pascal-second
38. The SI unit of dynamic viscosity is: — Pascal-second
39. The SI unit of solid angle is: — Steradian
40. What is the SI unit of angular velocity? — Radian per second
41. What is the SI unit of angular acceleration? — Radian per second squared
42. The phenomenon where light bends as it passes from one medium to another is called: — Refraction
43. What is the SI unit of kinematic viscosity? — Stokes
44. What is the SI unit of magnetic flux? — Weber
45. The SI unit of magnetic field strength (or magnetic intensity) is: — Ampere per meter
46. Ohm's Law relates voltage, current, and resistance. It states that the current through a conductor between two points is directly proportional to the voltage across the two points and inversely proportional to the resistance between them. Mathematically, it is represented as: — I = V / R
47. Which of the following is a scalar quantity? — Speed
48. The SI unit of electric current is: — Ampere
49. What is the SI unit of electric field strength? — Both A and B
50. What is the SI unit of the Stefan-Boltzmann constant? — Watt per square meter per Kelvin to the power of 4
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