C3 L1 Flashcards
The metric system is a measurement system based on
the number 10.
Modern scientists use a version of the metric system called what?
The International System of Units or SI.
Key Idea #1 Using SI as the standard system of measurement allows scientists to compare what?
data and communicate with each other about their results.
Key Idea #2 In SI, the basic unit for measuring length is what?
meter (m)
Key Idea #3 In SI, the basic unit for measuring mass is what?
the kilogram (kg).
Mass is a measure of the amount of what?
matter in an object.
Unlike mass, weight is a measure of what?
the force of gravity acting on an object.
Volume is the amount of space…….
an object or substance takes up
Key Idea #4 In SI, the basic unit for measuring volume is what?
the cubic meter (m3).
To measure the volume of a liquid, you should read the
level at the bottom of the meniscus or curve.
How do you calculate a rectangular solid’s volume?
multiply length X width X height
Density is a measure of how much what?
mass is contained in a given volume.
Key Idea #5 In SI, the basic unit for measuring density is what?
kilograms per cubic meter (kg/m3)
What is the density of water?
1 g/cm3
Key Idea #6 In addition to the Celsius scale, scientists sometimes use another temperature scale, called what?
The Kelvin scale. The Kelvin is the official SI unit for temperature.
The second (s) is the SI unit used to measure what?
time
