OCR Physics A Level QUESTIONS & ANSWERS PAPER: Modelling physics

OCR Physics A Level QUESTIONS & ANSWERS PAPER: Modelling physics What is the value of the prefix T (tera) - ANS 10¹² What is the value of the prefix G (giga) - ANS 10⁹ What is the value of the prefix M (mega) - ANS 10⁶ What is the value of the prefix k (kilo) - ANS 10³ What is the value of the prefix d (deci) - ANS 10⁻¹ What is the value of the prefix c (centi) - ANS 10⁻² What is the value of the prefix m (milli) - ANS 10⁻³ What is the value of the prefix μ (micro) - ANS 10⁻⁶ What is the value of the prefix n (nano) - ANS 10⁻⁹ What is the value of the prefix p (pico) - ANS 10⁻¹² What six base units of the SI system are used in A Level Physics? - ANS metre, kilogram, second, Ampere, Kelvin, Mole What six base quantities of the SI system are used in A Level Physics? - ANS length, mass, time, electric current, absolute temperature, amount of substance. What is the base unit of mass? - ANS kg What is the base unit of length? - ANS m What is the base unit of time? - ANS s What is the base unit of current? - ANS A What is the base unit of absolute temperature? - ANS K What is the Unit of potential difference? - ANS V What are the Units of density? - ANS kgm⁻³ What is the SI unit of energy? - ANS J What is the SI unit of power? - ANS W What is the SI unit of charge? - ANS C What units are equivalent to the volt? - ANS JC⁻¹ What base units are equivalent to the Newton? - ANS kgms⁻² What base units are equivalent to the Joule? - ANS kgm²s⁻² What units are equivalent to the Pascal? - ANS Nm⁻²