Understanding Units of Measure and the SI System

The video tutorial introduces the concept of measurement in science, explaining it as the assignment of numerical values to physical properties. It discusses the importance of units of measure, focusing on the SI system, which is widely used by scientists. The tutorial covers fundamental physical properties like mass, length, temperature, and time, and explains the difference between base and derived units. Examples, such as calculating area in meters squared, are provided to illustrate these concepts. The video concludes with a brief overview of important derived units relevant for the TEAS exam.

What is the primary purpose of assigning units to measurements?

• To provide context and meaning to numerical values

• To ensure all measurements are in meters

• To make numbers look more scientific

• To confuse students

Which system of measurement is widely used by scientists internationally?

• Customary System

• Metric System

• Imperial System

• SI System

What are the fundamental physical properties you need to know for the TEAS exam?

• Mass, length, temperature, and time

• Energy, power, work, and momentum

• Speed, velocity, acceleration, and force

• Volume, density, pressure, and area

How is the area of a square calculated using the concept of derived units?

• By adding the lengths of all sides

• By multiplying the length of one side by itself

• By subtracting the length of one side from the other

• By dividing the length of one side by two

Which of the following is an example of a derived unit?

• Meter per second

• Kilogram

• Second

• Meter