Name That Quantity
I describe how long an object is. What base quantity am I?
Length
What is the SI unit of mass?
Kilogram
A student says the SI unit of length is kilogram. Is the student correct? Explain.
The students is wrong the SI unit of lenght is METER
Name three base quantities.
Mass, Lenght, temperature, time, amount of substance.
I tell you how much matter is in an object. Who am I?
Mass
What is the SI unit of time?
Seconds
A student records a person's height as 1.7 kg. What is wrong with the measurement?
Kg should be metre
Which two base quantities could you measure when investigating how long it takes an object to travel a distance?
length and Time
I tell you how hot or cold something is. What am I?
temperature
mol is the SI unit of which base quantity
amount of substance
A student writes 5 metres (5 m) as the mass of a book. What mistake did the student make?
5m should be 5Kg
A chemist has 3 mol of a substance in a sample. Which base quantity is involved?
Amount of substance
My quantity symbol is n, what am I
amount of substance
True or false candela is the SI unit of mass.
False candela is the SI unit for luminous intensity
A student says, “Capital M is the quantity symbol for mass.” Is the student correct? Correct the statement.
No its a common m
A student records 5 m, 2 kg and 10 s. Name the three base quantities.
lenght, mass, time
I am the amount of visible light emitted by a light source in a particular direction.
Luminous intensity
What is the quantity symbol for Time. T or t
t (common t)
A student recorded 5 Cd as mass. What is wrong with this statement?
Mass is measured in Kg
List Six base quantities and their quantity symbols
Hint: be sure to mention if the quantity symbol is a capital or common letter
Lenght l
Mass m
Time t
Temperature T
Amount of substance n
luminous intensity Iᵥ