H556 EXPLORING PHYSICS OCR A-LEVEL
PHYSICS (PAPER 2) STUDY GUIDE WITH
COMPLETE SOLUTIONS
What six base units of the SI system are used in A Level Physics? - ✔-metre,
kilogram, second, Ampere, Kelvin, Mole
What six base quantities of the SI system are used in A Level Physics? - ✔-length,
mass, time, electric current, absolute temperature, amount of substance.
What is the base unit of mass? - ✔-kg
What is the base unit of length? - ✔-m
What is the base unit of time? - ✔-s
What is the base unit of current? - ✔-A
,What is the base unit of absolute temperature? - ✔-K
What is the Unit of potential difference? - ✔-V
What are the Units of density? - ✔-kgm⁻³
What is the SI unit of energy? - ✔-J
What is the SI unit of power? - ✔-W
What is the SI unit of charge? - ✔-C
What units are equivalent to the volt? - ✔-JC⁻¹
What base units are equivalent to the Newton? - ✔-kgms⁻²
What base units are equivalent to the Joule? - ✔-kgm²s⁻²
What units are equivalent to the Pascal? - ✔-Nm⁻²
What are the units of momentum? - ✔-kgms⁻¹
,What are the units of resistivity? - ✔-Ωm
What units are equivalent to a Watt? - ✔-Js⁻¹
What are the units of angular velocity (ω)? - ✔-rad. s⁻¹
What is 1m² in mm²? - ✔-10⁶mm²
What is 1m³ in cm³? - ✔-10⁶cm³
What is 1km² in m²? - ✔-1x10⁶m²
What is 1cm³ in mm³? - ✔-10³mm³
There are 10²⁴ free charge carriers per m³ of a material. How many are there per
mm³? - ✔-10¹⁵
10⁶ particles strike each mm² of a surface per second. How many strike 1m² of the
surface per second? - ✔-10¹²
If there is 1 particle per mm³, how many are there per m³? - ✔-10⁹
Water has a density of 1000kgm⁻³. What is this in kgcm⁻³? - ✔-10⁻³
, Water has a density of 1000kgm⁻³. What is this in gcm⁻³? - ✔-1
What is a control variable? - ✔-Something that must be kept constant to prevent it
affecting the dependent variable
What is meant by the repeatability of results? - ✔-Similar results would be
obtained from repeats of the same measurement from the same experimental set
up.
What is the value of the prefix T (tera) - ✔-10¹²
What is the value of the prefix G (giga) - ✔-10⁹
What is the value of the prefix M (mega) - ✔-10⁶
What is the value of the prefix k (kilo) - ✔-10³
What is the value of the prefix d (deci) - ✔-10⁻¹
What is the value of the prefix c (centi) - ✔-10⁻²
What is the value of the prefix m (milli) - ✔-10⁻³
What is the value of the prefix μ (micro) - ✔-10⁻⁶
PHYSICS (PAPER 2) STUDY GUIDE WITH
COMPLETE SOLUTIONS
What six base units of the SI system are used in A Level Physics? - ✔-metre,
kilogram, second, Ampere, Kelvin, Mole
What six base quantities of the SI system are used in A Level Physics? - ✔-length,
mass, time, electric current, absolute temperature, amount of substance.
What is the base unit of mass? - ✔-kg
What is the base unit of length? - ✔-m
What is the base unit of time? - ✔-s
What is the base unit of current? - ✔-A
,What is the base unit of absolute temperature? - ✔-K
What is the Unit of potential difference? - ✔-V
What are the Units of density? - ✔-kgm⁻³
What is the SI unit of energy? - ✔-J
What is the SI unit of power? - ✔-W
What is the SI unit of charge? - ✔-C
What units are equivalent to the volt? - ✔-JC⁻¹
What base units are equivalent to the Newton? - ✔-kgms⁻²
What base units are equivalent to the Joule? - ✔-kgm²s⁻²
What units are equivalent to the Pascal? - ✔-Nm⁻²
What are the units of momentum? - ✔-kgms⁻¹
,What are the units of resistivity? - ✔-Ωm
What units are equivalent to a Watt? - ✔-Js⁻¹
What are the units of angular velocity (ω)? - ✔-rad. s⁻¹
What is 1m² in mm²? - ✔-10⁶mm²
What is 1m³ in cm³? - ✔-10⁶cm³
What is 1km² in m²? - ✔-1x10⁶m²
What is 1cm³ in mm³? - ✔-10³mm³
There are 10²⁴ free charge carriers per m³ of a material. How many are there per
mm³? - ✔-10¹⁵
10⁶ particles strike each mm² of a surface per second. How many strike 1m² of the
surface per second? - ✔-10¹²
If there is 1 particle per mm³, how many are there per m³? - ✔-10⁹
Water has a density of 1000kgm⁻³. What is this in kgcm⁻³? - ✔-10⁻³
, Water has a density of 1000kgm⁻³. What is this in gcm⁻³? - ✔-1
What is a control variable? - ✔-Something that must be kept constant to prevent it
affecting the dependent variable
What is meant by the repeatability of results? - ✔-Similar results would be
obtained from repeats of the same measurement from the same experimental set
up.
What is the value of the prefix T (tera) - ✔-10¹²
What is the value of the prefix G (giga) - ✔-10⁹
What is the value of the prefix M (mega) - ✔-10⁶
What is the value of the prefix k (kilo) - ✔-10³
What is the value of the prefix d (deci) - ✔-10⁻¹
What is the value of the prefix c (centi) - ✔-10⁻²
What is the value of the prefix m (milli) - ✔-10⁻³
What is the value of the prefix μ (micro) - ✔-10⁻⁶
