Measurement

Syifa
Mind Map by Syifa, updated more than 1 year ago
Syifa
Created by Syifa about 6 years ago
59
1

Description

Measurement: Chapter 1
Tags

Resource summary

Measurement
1 physical quantity
1.1 quantity that can be measured
1.2 numerical magnitude & a unit
1.2.1 SI units
1.2.1.1 prefixes
1.2.1.1.1 10^9 (G, giga-)
1.2.1.1.2 10^6 (M, mega-)
1.2.1.1.3 10^3 (k, kilo-)
1.2.1.1.4 10^-1 (d, deci-)
1.2.1.1.5 10^-2 (c, centi-)
1.2.1.1.6 10^-3 (m, milli-)
1.2.1.1.7 10^-6 (micro-)
1.2.1.1.8 10^-9 (n, nano-)
1.3 7 base quantities
1.3.1 #mass
1.3.1.1 kilogram (kg)
1.3.2 #time
1.3.2.1 second (s)
1.3.2.2 stopwatches
1.3.2.2.1 precision to 0.1s
1.3.2.3 pendulum
1.3.2.3.1 period
1.3.2.3.1.1 time taken for one complete oscillation
1.3.2.3.1.1.1 swing from one end to the other and back again to starting position
1.3.2.3.2 oscillation
1.3.2.3.2.1 each complete to-and-fro motion
1.3.2.4 human reaction time
1.3.3 #electric current
1.3.3.1 ampere (A)
1.3.4 #temperature
1.3.4.1 kelvin (K)
1.3.5 luminous intensity
1.3.5.1 candela (cd)
1.3.6 amount of substance
1.3.6.1 mole (mol)
1.3.7 #length
1.3.7.1 metre (m)
1.3.7.2 metre rule
1.3.7.2.1 avoid parallax errors
1.3.7.2.2 precision to 0.1cm; length of a book
1.3.7.3 vernier calipers
1.3.7.3.1 main scale & sliding vernier scale
1.3.7.3.2 check for zero error
1.3.7.3.2.1 positive/ negative
1.3.7.3.3 how to read?
1.3.7.3.3.1 1. grip object gently using outside jaws of calipers
1.3.7.3.3.1.1 2. read main scale opp. zero mark on vernier scale
1.3.7.3.3.1.1.1 3. find the mark which coincides with a marking on main scale
1.3.7.3.3.1.1.1.1 4. find diameter by adding main scale reading to vernier scale reading
1.3.7.3.4 precision to 0.01cm; diameter of a test-tube
1.3.7.4 micrometer screw gauge
1.3.7.4.1 how to read?
1.3.7.4.1.1 1. turn thimble until the anvil and spindle gently grip the object, turn until ratchet clicks
1.3.7.4.1.1.1 2. read main scale reading at edge of thimble
1.3.7.4.1.1.1.1 3. thimble scale has 50 divisions, each is 0.01mm. take thimble reading opposite datum line of main scale
1.3.7.4.1.1.1.1.1 4. find diameter by adding main scale reading to thimble reading
1.3.7.4.2 precision to 0.01mm; wires
1.3.7.4.3 check for zero error
1.3.7.4.3.1 positive/ negative
1.3.7.5 tape measure
1.3.7.5.1 precision to 0.1cm; a person's waist
1.4 derived quantities
1.4.1 area
1.4.1.1 length*width (m^2)
1.4.2 volume
1.4.2.1 length*width*height (m^3)
1.4.3 speed
1.4.3.1 length/time (ms^-1)
Show full summary Hide full summary

Similar

AQA Physics P1 Quiz
Bella Statham
GCSE AQA Physics - Unit 3
James Jolliffe
Using GoConqr to study science
Sarah Egan
GCSE AQA Physics 1 Energy & Efficiency
Lilac Potato
Waves
kate.siena
Forces and their effects
kate.siena
Forces and motion
Catarina Borges
Junior Cert Physics formulas
Sarah Egan
OCR Physics P4 Revision
Dan Allibone
P2 Radioactivity and Stars
dfreeman
Physics P1
themomentisover