Earthquakes
Seismic Waves
Morse Code
Earthquake Safety + Sound Digitization
Sound digitization
100

Earthquakes are caused by the sudden release of this type of energy.

What is seismic energy?

100

Sudden movement of the Earth.

What is an Earthquake?


100

This inventor is credited with developing Morse code.

Who is Samuel Morse?

100

During an earthquake, it's important to take cover under this sturdy piece of furniture.

What is a table or desk?

100

In Morse code, this letter is represented by a single dash.

What is the letter 'T'?

200

This instrument is used to measure the strength of earthquakes.

What is a seismometer?

200

These are the fastest seismic waves and can travel through solids, liquids, and gases.

What are P-waves (primary waves)?

200

Morse code is a method of encoding text characters using these two symbols.

What are dots (.) and dashes (-)?

200

This emergency kit should be prepared in advance to have essential supplies during and after an earthquake.

What is a disaster preparedness kit?

200

This common distress signal in Morse code is represented by "... --- ...".

What is SOS?

300

The point on the Earth's surface directly above the earthquake's focus is called this.

What is the epicenter?

300

These waves are also known as shear waves and can only travel through solids.

What are S-waves (secondary waves)?

300

This punctuation mark is used in Morse code to separate letters.

What is the space?

300

These are the seven letters used to name musical notes in the standard Western musical scale.

What are A, B, C, D, E, F, and G?

300

This numerical system is used in computers and is composed of only 1s and 0s.

What is the binary system?

400

This scale measures the magnitude of earthquakes.

What is the Richter scale?

400

These waves travel along the Earth's surface and cause the most damage during an earthquake.

What are surface waves?

400

Morse code was historically used for long-distance communication using this method.

What is telegraphy?

400

This symbol indicates the pitch and duration of a musical sound and is placed on the lines and spaces of the staff.

What is a note?

400

This is the process of converting analog sound waves into digital data.

What is digitization?

500

Earthquakes are most commonly caused by the movement of these ________ plates.

What are tectonic plates?

500

The Richter scale measures the magnitude of earthquakes based on the amplitude of these waves.

What are seismic waves?

500

In Morse code, this letter is represented by a single dot.

What is the letter 'E'?

500

This musical term indicates the speed or pace of a given piece.

What is tempo?

500

This note lasts for four beats in 4/4 time and is represented by a hollow oval note head without a stem.

What is a whole note?

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