Base Quantities
What is a physical quantity?
Quantities that can be measured.
they are formed by combining two or more base quantities.
which instrument is used to measure time?
stop watch, clock
0.001g to mg
1 mg
What is the unit of measure for length.
length is measured in Meter (m)
Name one derived quantity.
volume, area, speed, displacement, velocity etc
which instrument is used to measure distance?
ruler
1 mm to m
0.001m
What are SI base units?
Internationally agreed units used to represent measurements.
what is the formula for finding volume of a cube?
length x width x height
which instrument measure mass?
balance/scale
1km to m
1000m
Which physical quantity is measured in Kelvin?
Temperature
which instrument is used to measure volume?
measuring cylinder
what does the symbol M mean
Mega
Why are SI base units important?
they make it easy for scientist to communicate information.
Calculate the area of a rectangle of length 5m and width 50 m
250 m2
What is a meter ruler used to measure?
length
which is bigger? Mega, Terra, Giga
Tera