Measurements Flashcards
SI unit of mass
Kilogram (kg)
SI unit of length
Metre (m)
SI unit of time
Second (s)
SI unit of area
Metre squared (m2) (square metre)
SI unit of volume
Metres cubed (m3) (cubic metre) and Litre (L)
Used to measure straight lines
Ruler/Metre stick
Used to measure short curved lines
An opisometer
Used to measure long curved lines
Trundle Wheel
Used to find the diameter or width of a solid object
Vernier Callipers
Area
How much space something covers.
To get the area of a regular shape like a square or a rectangle multiply the length by the width. Area = L x W
How to measure the area of an irregular object
To get the area of an irregular object trace it onto graph paper and count how many squares it covers.
Mass
Mass is the amount of matter in an object
Measuring mass
Measured using an electronic balance
Volume
Volume tells you how much space something takes up
length x width x height
Volume of an irregular object
We can measure the volume of irregular objects using a graduated cylinder and/or an overflow can
