AQA A-Level Physics Actual Questions with Correct Answers 2024 Update 100% Solved

AQA A-Level Physics Actual Questions with Correct Answers 2024 Update 100% Solved What are the SI units of mass, length, time, amount of substance, temperature, electric current? mass kg, length m, time s, amount of substance mol, temperature K, electric current A List the decimal prefixes and their "power of ten" values kilo 3, mega 6, giga 9, tera 12, centi -2, milli -3, micro -6, nano -9, pico -12, femto -15 How do you convert eV to J, and how do you convert kWh to J? 1 eV = 1.6 x 10^-19 J, 1 kWh = 3.6 x 10^6 J Define precision Measure of how close repeated measurements are to each other Define repeatability Ability to obtain the same result under the same conditions Define reproducibility Ability to obtain consistent results across different experiments Define resolution Smallest increment that can be measured or observed Define accuracy Measure of how close a measurement is to the true value What is nuclide (ZXA) notation and what information does it convey? Notation used to represent atomic and nuclear particles. Z = proton number or atomic number, A = mass number or nuclide number, and X is the element symbol. What is the strong force? A short-range attraction and very-short range repulsion between nucleons, 0.5 fm to 3 fm. What is a neutrino? Neutral, and *almost* massless, particle hypothesized to account for conservation of energy in beta decay.