lesson 1

Question 1

What is an earthquake?

Answer 1

An earthquake is the shaking of the surface of the Earth resulting from a sudden release of energy in the Earth’s lithosphere.

Question 2

True or False: Earthquakes only occur in tectonic plate boundaries.

Answer 2

False

Question 3

Fill in the blank: The point within the Earth where an earthquake originates is called the _______.

Answer 3

focus

Question 4

What is the term for the location directly above the focus on the Earth’s surface?

Answer 4

epicenter

Question 5

Which type of plate boundary is most commonly associated with earthquakes?

Answer 5

Transform boundaries

Question 6

What scale is commonly used to measure the magnitude of earthquakes?

Answer 6

Richter scale

Question 7

True or False: All earthquakes are caused by volcanic activity.

Answer 7

False

Question 8

What are seismic waves?

Answer 8

Seismic waves are waves of energy that travel through the Earth as a result of an earthquake.

Question 9

Multiple Choice: Which of the following is NOT a type of seismic wave? A) P-waves B) S-waves C) R-waves D) T-waves

Answer 9

D) T-waves

Question 10

What is the main cause of earthquakes?

Answer 10

The movement of tectonic plates.

Question 11

Fill in the blank: The boundary where two tectonic plates slide past each other is known as a _______ boundary.

Answer 11

transform

Question 12

What is a fault line?

Answer 12

A fault line is a fracture or zone of fractures between two blocks of rock.

Question 13

True or False: Earthquakes can occur due to human activities, such as mining or reservoir-induced seismicity.

Answer 13

True

Question 14

What is the difference between a shallow and a deep earthquake?

Answer 14

Shallow earthquakes occur at depths less than 70 km, while deep earthquakes occur at depths greater than 300 km.

Question 15

Multiple Choice: Which of the following regions is known for frequent seismic activity? A) Midwest USA B) Himalayas C) Sahara Desert D) Arctic Circle

Answer 15

B) Himalayas

Question 16

What is the term for the energy released during an earthquake?

Answer 16

Seismic energy

Question 17

Fill in the blank: An earthquake’s intensity is measured using the _______ scale.

Answer 17

Modified Mercalli

Question 18

What type of seismic wave travels the fastest?

Answer 18

P-waves (Primary waves)

Question 19

True or False: The Pacific Ring of Fire is an area with a high frequency of earthquakes.

Answer 19

True

Question 20

What does the term ‘aftershock’ refer to?

Answer 20

Aftershock refers to smaller earthquakes that occur in the same general area following a larger earthquake.

Question 21

What geological feature is commonly formed by the movement of tectonic plates during an earthquake?

Answer 21

Faults

Question 22

What is the role of the Earth’s mantle in the occurrence of earthquakes?

Answer 22

The mantle’s convective movements can lead to tectonic plate interactions, causing earthquakes.

Question 23

Multiple Choice: Which of the following is a method used to predict earthquakes? A) Seismograph B) Weather radar C) Barometer D) Telescope

Answer 23

A) Seismograph

Question 24

Fill in the blank: The _______ is a measure of how much energy is released during an earthquake.

Answer 24

magnitude

Question 25

What are tectonic plates?

Answer 25

Tectonic plates are large slabs of the Earth’s lithosphere that move and interact at their boundaries.