OCR A Level Physics, OCR A-Level Physics,
Physics Exam Questions And Answers Latest
Update 2025
S.I. unit and symbol for mass? -
correct answer ✅Kilogram, kg
S.I. unit and symbol for length? -
correct answer ✅Metre, m
S.I. unit and symbol for time? -
correct answer ✅Second, s
S.I. unit and symbol for temperature? -
correct answer ✅Kelvin, K
S.I. unit and symbol for electrical current? -
correct answer ✅Ampere, A
S.I. unit and symbol for amount of substance? -
correct answer ✅Mole, mol
S.I. unit and symbol for luminous intensity? -
correct answer ✅Candela, Cd
,OCR A Level Physics, OCR A-Level Physics,
Physics Exam Questions And Answers Latest
Update 2025
What's a physical quantity? -
correct answer ✅A physical property that can be measured or
quantified
- Made up of a magnitude (value) and appropriate units
Prefix for 10^12 -
correct answer ✅Tera, T
Prefix for 10^9 -
correct answer ✅Giga, G
Prefix for 10^6 -
correct answer ✅Mega, M
Prefix for 10^3 -
correct answer ✅Kilo, k
Prefix for 10^-1 -
correct answer ✅Deci, d
,OCR A Level Physics, OCR A-Level Physics,
Physics Exam Questions And Answers Latest
Update 2025
Prefix for 10^-2 -
correct answer ✅Centi, c
Prefix for 10^-3 -
correct answer ✅Mili, m
Prefix for 10^-6 -
correct answer ✅Micro, μ
Prefix for 10^-9 -
correct answer ✅Nano, n
Prefix for 10^-12 -
correct answer ✅Pico, p
What is an estimate? -
correct answer ✅An educated guess at an answer
, OCR A Level Physics, OCR A-Level Physics,
Physics Exam Questions And Answers Latest
Update 2025
What is a random error? -
correct answer ✅An error caused by unknown, unpredictable
changes during an experiment. Human error (e.g. misreading) is
also a random error - can lead to inconsistencies when repeating
Examples of random errors? -
correct answer ✅E.g. fluctuations in light or temperature
What is a systematic error? -
correct answer ✅An error involving the measuring equipment.
Often present in all readings taken, and can be removed once
identified.
- Systematic errors tend to shift all the points in the same direction
Example of a systematic error? -
correct answer ✅E.g. equipment not used or calibrated properly
What is a zero error? -
correct answer ✅A type of systematic error caused by equipment
not being correctly calibrated or 'zeroed'
Physics Exam Questions And Answers Latest
Update 2025
S.I. unit and symbol for mass? -
correct answer ✅Kilogram, kg
S.I. unit and symbol for length? -
correct answer ✅Metre, m
S.I. unit and symbol for time? -
correct answer ✅Second, s
S.I. unit and symbol for temperature? -
correct answer ✅Kelvin, K
S.I. unit and symbol for electrical current? -
correct answer ✅Ampere, A
S.I. unit and symbol for amount of substance? -
correct answer ✅Mole, mol
S.I. unit and symbol for luminous intensity? -
correct answer ✅Candela, Cd
,OCR A Level Physics, OCR A-Level Physics,
Physics Exam Questions And Answers Latest
Update 2025
What's a physical quantity? -
correct answer ✅A physical property that can be measured or
quantified
- Made up of a magnitude (value) and appropriate units
Prefix for 10^12 -
correct answer ✅Tera, T
Prefix for 10^9 -
correct answer ✅Giga, G
Prefix for 10^6 -
correct answer ✅Mega, M
Prefix for 10^3 -
correct answer ✅Kilo, k
Prefix for 10^-1 -
correct answer ✅Deci, d
,OCR A Level Physics, OCR A-Level Physics,
Physics Exam Questions And Answers Latest
Update 2025
Prefix for 10^-2 -
correct answer ✅Centi, c
Prefix for 10^-3 -
correct answer ✅Mili, m
Prefix for 10^-6 -
correct answer ✅Micro, μ
Prefix for 10^-9 -
correct answer ✅Nano, n
Prefix for 10^-12 -
correct answer ✅Pico, p
What is an estimate? -
correct answer ✅An educated guess at an answer
, OCR A Level Physics, OCR A-Level Physics,
Physics Exam Questions And Answers Latest
Update 2025
What is a random error? -
correct answer ✅An error caused by unknown, unpredictable
changes during an experiment. Human error (e.g. misreading) is
also a random error - can lead to inconsistencies when repeating
Examples of random errors? -
correct answer ✅E.g. fluctuations in light or temperature
What is a systematic error? -
correct answer ✅An error involving the measuring equipment.
Often present in all readings taken, and can be removed once
identified.
- Systematic errors tend to shift all the points in the same direction
Example of a systematic error? -
correct answer ✅E.g. equipment not used or calibrated properly
What is a zero error? -
correct answer ✅A type of systematic error caused by equipment
not being correctly calibrated or 'zeroed'
