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OCR Physics A Level Question and answers already passed OCR Physics A Level What is the value of the prefix T (tera) - correct answer 10¹² What is the value of the prefix G (giga) - correct answer 10⁹ What is the value of the prefix M (mega) - correct answer 10⁶ What is the...

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  • October 19, 2024
  • 92
  • 2024/2025
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OCR Physics A Level
What is the value of the prefix T (tera) - correct answer ✔10¹²


What is the value of the prefix G (giga) - correct answer ✔10⁹


What is the value of the prefix M (mega) - correct answer ✔10⁶


What is the value of the prefix k (kilo) - correct answer ✔10³


What is the value of the prefix d (deci) - correct answer ✔10⁻¹


What is the value of the prefix c (centi) - correct answer ✔10⁻²


What is the value of the prefix m (milli) - correct answer ✔10⁻³


What is the value of the prefix μ (micro) - correct answer ✔10⁻⁶


What is the value of the prefix n (nano) - correct answer ✔10⁻⁹


What is the value of the prefix p (pico) - correct answer ✔10⁻¹²


What six base units of the SI system are used in A Level Physics? - correct
answer ✔metre, kilogram, second, Ampere, Kelvin, Mole

,What six base quantities of the SI system are used in A Level Physics? -
correct answer ✔length, mass, time, electric current, absolute temperature,
amount of substance.


What is the base unit of mass? - correct answer ✔kg


What is the base unit of length? - correct answer ✔m


What is the base unit of time? - correct answer ✔s


What is the base unit of current? - correct answer ✔A


What is the base unit of absolute temperature? - correct answer ✔K


What is the Unit of potential difference? - correct answer ✔V


What are the Units of density? - correct answer ✔kgm⁻³


What is the SI unit of energy? - correct answer ✔J


What is the SI unit of power? - correct answer ✔W


What is the SI unit of charge? - correct answer ✔C


What units are equivalent to the volt? - correct answer ✔JC⁻¹

,What base units are equivalent to the Newton? - correct answer ✔kgms⁻²


What base units are equivalent to the Joule? - correct answer ✔kgm²s⁻²


What units are equivalent to the Pascal? - correct answer ✔Nm⁻²


What are the units of momentum? - correct answer ✔kgms⁻¹


What are the units of resistivity? - correct answer ✔Ωm


What units are equivalent to a Watt? - correct answer ✔Js⁻¹


What are the units of angular velocity (ω)? - correct answer ✔rad. s⁻¹


What is 1m² in mm²? - correct answer ✔10⁶mm²


What is 1m³ in cm³? - correct answer ✔10⁶cm³


What is 1km² in m²? - correct answer ✔1x10⁶m²


What is 1cm³ in mm³? - correct answer ✔10³mm³


There are 10²⁴ free charge carriers per m³ of a material. How many are there
per mm³? - correct answer ✔10¹⁵

, 10⁶ particles strike each mm² of a surface per second. How many strike 1m² of
the surface per second? - correct answer ✔10¹²


If there is 1 particle per mm³, how many are there per m³? - correct answer
✔10⁹


Water has a density of 1000kgm⁻³. What is this in kgcm⁻³? - correct answer
✔10⁻³


Water has a density of 1000kgm⁻³. What is this in gcm⁻³? - correct answer
✔1


What is a control variable? - correct answer ✔Something that must be kept
constant to prevent it affecting the dependent variable


What is meant by the repeatability of results? - correct answer ✔Similar
results would be obtained from repeats of the same measurement from the
same experimental set up.


What is meant by the reproducibility of results - correct answer ✔Similar
results would be obtained from repeats by different people with different
equipment.


How can you ensure a metre rule is held vertically? - correct answer ✔Use a
plumb line, set square or spirit level


How do you avoid parallax error? - correct answer ✔Ensure eye, object and
scale are all in line with each other OR ensure object and scale are directly
adjacent to each other

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