Metric System and Measurement Concepts

This tutorial covers the metric system's units of length, starting with meters as the base unit. It explains the metric staircase, where moving up or down changes measurements by factors of 10. The video discusses smaller units like decimeters, centimeters, millimeters, micrometers, and nanometers, providing everyday examples for each. It also covers larger units such as decameters, hectometers, kilometers, megameters, and gigameters, with real-world comparisons. The tutorial concludes with a focus on the most commonly used units in science: nanometers, micrometers, millimeters, centimeters, meters, and kilometers.

What is the base unit of length in the metric system?

• Yard

• Meter

• Inch

• Foot

How many times smaller is a decimeter compared to a meter?

• 10 times

• 100 times

• 1000 times

• 10000 times

Which of the following is approximately the length of a centimeter?

• A baseball bat

• A flea

• A crayon

• A computer keyboard key

What is the approximate size of a human skin cell in micrometers?

• 30 micrometers

• 100 micrometers

• 500 micrometers

• 5 micrometers

How small is a nanometer compared to a meter?

• One millionth

• One billionth

• One thousandth

• One trillionth

What is the approximate length of the Ebola virus in nanometers?

• 5000 nanometers

• 970 nanometers

• 80 nanometers

• 1500 nanometers

How many meters are in a decameter?

• 100 meters

• 10000 meters

• 10 meters

• 1000 meters

What is the equivalent of a megameter in kilometers?

• 100 kilometers

• 1000 kilometers

• 10000 kilometers

• 100000 kilometers

What is the mean diameter of the sun in gigameters?

• 0.5 gigameters

• 1.4 gigameters

• 5 gigameters

• 10 gigameters

Which of the following units is most commonly used in scientific measurements?

• Megameter

• Nanometer

• Hectometer

• Decameter