The Richter Scale

The video explains seismic waves and how their energy is measured using the Richter scale, a logarithmic scale where each number represents ten times the power of the previous one. It introduces exponential expressions and logarithms, highlighting their inverse relationship. The video also discusses the frequency of earthquakes, noting that larger quakes are less common.

What is the minimum magnitude on the Richter scale that can be felt by the average person?

• 2

• 1

• 4

• 3

How much more powerful is an earthquake measuring 6 compared to one measuring 5 on the Richter scale?

• 2 times

• 5 times

• 10 times

• 20 times

What is the base number used in the logarithmic scale of the Richter scale?

• 10

• 5

• 2

• 100

If an earthquake measures 8 on the Richter scale, how many times stronger is it than one measuring 6?

• 10 times

• 10,000 times

• 1,000 times

• 100 times

Approximately how many earthquakes of magnitude 2 occur daily?

• 100

• 500

• 1,000

• 10