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Science: measurement


Why is measurement so important? Without measurement it would be difficult for scientists to carry out experiments or form theories Measurement is used for quality control, safety, design and problem solving
what is length Length is a measure of how long an object is or the distance between two points
what is the Standard Unit of length The standard unit (SI) for length is the metre
what are the other units for length Other units for length include: Centimetre (cm) Millimetre (mm) Kilometre (km)
convert 10cm to mm 100mm
convert 100mm to cm 10cm
convert 1000mm to m 1m
convert 0.56m to cm 56cm
what instruments are used to measure the length of a straight line Metre stick (large lengths) Ruler Measuring tape Trundle wheel(large lengths) Vernier Callipers (diameter)(balls)
what errors can be made when measuring length Zero error When the scale on the metre stick does not start at zero Error of parallax When the scale is read from the wrong angle
what Instrument ares used to measure the length of a curved lined Opisometer
what is area Area is the amount of surface enclosed within its lines
how do you Measure the area of a regular shaped object you multiply the length by the width
Measuring area of an irregular shaped object To calculate the area of an irregular shaped object, you draw the object on special graph paper Each square on the graph paper is 1cm by 1cm or 1cm²
what is volume The amount of space that an object takes up
how do you Measure the volume of a regular shaped object To calculate the volume of a regular shape you multiply the length by the width by the height
what is the Standard unit (SI) of area The standard unit (SI) for area is the m²
what is the standard unit (SI) of volume The standard unit (SI) for volume is the m³
with what and how do you Measure the volume of a liquid To calculate the volume of a liquid, you can use an graduated cylinder You must read: From the bottom of the meniscus (curved line) At eye level in order to get an accurate reading
with what do you Measure volume of an irregular shaped object To calculate the volume of an irregular shaped object, you can use an overflow can
what is mass The amount of matter in an object
what is the standard unit (SI) for mass The standard unit (SI) for mass is the kilogram(Kg)
what is mass commonly measured in Mass is commonly measured in grams (g)
what Instrument are used to measure mass Electronic balance/scales. It can also be called a mass balance/scales
what is temperature A measure of how hot or cold an object is
what is the standard unit (SI) of temperature The standard unit (SI) for temperature is the Kelvin (K)
what is temperature also measured in Temperature is commonly measured in Degrees Celsius (°C)
what is the instrument used to measure temperature Thermometer
what is the standard unit(SI) of time The standard unit (SI) for time is the second (S)
what are other units of Time Other units of time include minutes(mins) and hours(hrs)
what Instrument is used to measure time Timer/stopwatch
Created by: JMahango
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