## Quantity, Symbol, Unit and Unit Symbol

I’ve put together, with Mrs Mac’s help, a document with quantity, symbol, unit and unit symbol so that you know the meaning of the terms in the Relationships Sheet. It is in EXCEL so that you can sort it by course, quantity or symbol.

Quantity, Symbol, Units the excel sheet

Quantity, Symbol, Units a pdf sheet sorted by course and then alphabetical by quantity.

This is the same information in readily available Tablepress form. If you click on the Higher tab at the top it should sort by terms that you need in alphabetical order, or search for a term. Let me know if I’ve missed any.

## Quantity, Symbol, Unit, Unit, Symbol N5-AH.

NHAPhysical Quantity symUnitUnit Abb.
5absorbed dose D gray Gy
5absorbed dose rate H (dot)gray per second gray per hour gray per year Gys -1 Gyh -1 Gyy -1
567acceleration a metre per second per second m s -2
567acceleration due to gravity g metre per second per second m s -2
5activity A becquerel Bq
567amplitude A metre m
567angle θ degree °
567area A square metre m 2
567average speedv (bar)metre per second m s -1
567average velocity v (bar)metre per second m s -1
567change of speed ∆v metre per second m s -1
567change of velocity ∆v metre per second m s -1
5count rate - counts per second (counts per minute) -
567current I ampere A
567displacement s metre m
567distance dmetre, light year m , ly
567distance, depth, height d or h metre m
5effective dose H sievert Sv
567electric charge Q coulomb C
567electric charge Q or q coulomb C
567electric current I ampere A
567energy E joule J
5equivalent dose H sievert Sv
5equivalent dose rate H (dot)sievert per second sievert per hour sievert per year Svs -1 Svh -1 Svy -1
567final velocity v metre per second m s -1
567force F newton N
567force, tension, upthrust, thrustF newton N
567frequency f hertz Hz
567gravitational field strength g newton per kilogram N kg -1
567gravitational potential energy E pjoule J
5half-life t 1/2 second (minute, hour, day, year) s
56heat energy Eh joule J
567height, depth h metre m
567initial speed u metre per second m/s
567initial velocity u metre per second m s -1
567kinetic energy Ek joule J
567length l metre m
567mass m kilogram kg
5number of nuclei decayingN - -
567period T second s
567potential difference V volt V
567potential energy Ep joule J
567power P watt W
567pressure P or p pascal Pa
567resistance R ohm Ω
567specific heat capacity c joule per kilogram per degree Celsius Jkg-1 °C -1
56specific latent heat l joule per kilogram Jkg -1
567speed of light in a vacuum c metre per second m s -1
567speed, final speed v metre per second ms -1
567speed, velocity, final velocity v metre per second m s-1
567supply voltage Vsvolt V
567temperature T degree Celsius °C
567temperature T kelvin K
567time t second s
567total resistance Rohm Ω
567voltage V volt V
567voltage, potential difference V volt V
567volume V cubic metre m3
567weight W newton N
567work done W or E Wjoule J
7angular momentum L kilogram metre squared per second kg m2 s -1
7angular velocity,
final angular velocity
7apparent brightnessbWatts per square metreWm-2
7back emfevolt V
7capacitive reactance Xcohm W
6critical angle θc degree °
density ρ kilogram per cubic metre kg m-3
7displacement s or x or y metre m
efficiency η - -
67electric field strength E newton per coulomb
volts per metre
N C -1
Vm -1
7electrical potential V volt V
67electromotive force (e.m.f) E or ε volt V
6energy level E 1 , E 2 , etcjoule J
feedback resistance Rfohm Ω
focal length of a lens f metre m
6frequency of source fs hertz Hz
67fringe separation ∆x metre m
67grating to screen distance D metre m
7gravitational potential U or V joule per kilogram J kg-1
half-value thickness T1/2 metre m
67impulse (∆p) newton second
kilogram metre per second
Ns
kgms-1
7induced e.m.f. E or ε volt V
7inductor reactanceXLohm W
input energy E ijoule J
input power Piwatt W
input voltage V 1 or V2 volt V
input voltage V ivolt V
6internal resistance r ohm Ω
67irradiance I watt per square metre W m-1
7luminoscityLWattW
7magnetic induction B tesla T
7moment of inertia I kilogram metre squared kg m2
67momentum p kilogram metre per second kg m s-1
6number of photons per second per cross sectional area N - -
number of turns on primary coil n p- -
number of turns on secondary coil n s- -
6observed wavelengthλ observedmetrem
output energy E o joule J
output power P owatt W
output voltage V o volt V
6peak current Ipeak ampere A
6peak voltage V peak volt V
67Planck’s constant h joule second Js
7polarising angle
(Brewster’s angle)
i pdegree ̊
power (of a lens) P dioptre D
power gain Pgain - -
7Power per unit areaWatts per square metreWm-2
primary current I p ampere A
primary voltage Vpvolt V
7radial acceleration ar metre per second per second m s-2
6redshiftz--
67refractive index n - -
6relativistic lengthl'metrem
6relativistic timet'seconds
rest mass mo kilogram kg
6rest wavelengthλrestmetrem
6root mean square current I rmsampere A
6root mean square voltage Vrmsvolt V
7rotational kinetic energy Erotjoule J
secondary current Is ampere A
secondary voltage Vsvolt V
7self-inductance L henry H
67slit separation d metre m
7tangential acceleration atmetre per second per second m s-2
6threshold frequency fohertz Hz
7time constanttseconds
7torque Τ newton metre Nm
7uncertainty in Energy∆E jouleJ
7uncertainty in momentum∆px kilogram metre per second kgms-1
7uncertainty in position∆x metre m
7uncertainty in time∆t seconds
6velocity of observer vometre per second m s-1
6velocity of source vsmetre per second m s-1
voltage gain - - -
voltage gain Ao or V gain - -
567wavelengthλmetrem
6work functionWjouleJ

## Units, Prefixes, Scientific Notation and Uncertainties

Here is a link to a presentation that I gave for the IoP on AH Uncertainties

Below is attached various useful documents to assist you in this vital part of the course. It is when you begin to use this material when going through your own experiments that it will become clear. Take time to read and understand it.

AH uncertainties summary notes 2013 These are a great set of notes produced by SSERC.

UPSN Uncerts These are the content statements covering this topic from the May 2016 Course Support Notes.

Uncertainties notes Mrs Physics’ AH Uncertainty Notes based on the pdf file by N Fancey and G Millar.

AH uncertainties experiments 2013  Experiment sheets produced by SSERC.

AH uncertainties tutorial 2013  Questions from Robert Gordon College.

AH uncertainties tutorial solutions 2013 The solutions from Robert Gordon College. Q1 updated. I’ll need to check through the rest.

Measurung gd practice

Use this document very sparingly, it is not compatible with some of the AH mark scheme, especially in that it recommends you always round UP in an uncertainty. This is NOT what you should do at AH.- You’ve been warned! Contact me if you have concerns.

Reading the Vernier Scale on the Travelling Microscope

##### Use of Linest

Linest

Here is a link to a presentation I gave for the IoP on AH Uncertainties. It is worth AH students checking it out.

AH-uncertainties/

December 2020

## Background documents- a handy place to find them

CfE AH traffic light sheets Traffic Light document in excel to monitor your progress.

AH Physics Data Sheet The data sheet that you’ll find in the exam papers. Make sure you keep a copy for SQA practice questions.

CfE AH relationship sheet The relationship sheet, containing formulae for AH, H, a few maths equations and a periodic table.

Course Support Notes May 2016 Published by the SQA the latest Course Support Notes. Check the landscape pages for the content and context of the AH Physics Course.

Physics AH Open Ended Questions

need a piece of graph paper? Print some off here! multiwidth graph grey

AH Physics Project Advice for Teachers Here is another place to find Tom B’s document on completing projects. Dated January 2017.

Here is a useful document, but beware, the symbols included are non standard for AH Physics! You’ve been warned.

lc_physics_teachers_guide