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.
