Science 8 2nd Prelims

Question 1

A measure of the number of electrical charges passing through a cross-section of a conductor in a give time.

Answer 1

Current

Question 2

Symbol of Ampere

Answer 2

A

Question 3

Contribute to the theory of electricity and magnetism

Answer 3

Andre- Marie Ampere

Question 4

Measures electric current

Answer 4

Ammeter

Question 5

The electric pressure that causes current to flow is the difference in energy per unit charge as a charge moves between two points in the path of the current

Answer 5

Voltage

Question 6

Symbol of Volts

Answer 6

V

Question 7

Invented the voltaic pile

Answer 7

Alessandro Volta

Question 8

Measures voltage

Answer 8

Voltmeter

Question 9

The opposition to the flow of electron. The ability to impede the flow of electrons in conductors. Any hindrance to the flow of electrons in a circuit

Answer 9

Resistance

Question 10

Symbol of Resistance

Answer 10

Ohm

Question 11

Circuit

Answer 11

Any path where electrons can pass through

Question 12

Vibrations of the Earth caused by rapid release of energy. An earthquake iswhat happens when two blocks of the earth suddenly slip past one another

Answer 12

Earthquakes

Question 13

Fractures on the surface of Earth that result to some displacement or changes in the position of rocks. Break in the earth’s crust

Answer 13

Faults

Question 14

Formed when the footwall moves up relative to the hanging wall. Produced by tensional forces, where the crustal blocks are being pulled apart

Answer 14

Normal fault

Question 15

Formed when the footwall moves down relative to the hanging wall. Produced compressional forces that push the crustal blocks toward each other

Answer 15

Reverse fault

Question 16

A type of reverse fault that has very low angle of displacement. Formed when there is no vertical displacement during faulting.

Answer 16

Thrust fault

Question 17

Are those that have moved one or more times in the last 10 000 years

Answer 17

Active faults

Question 18

Are those that have not moved for the last 10 000 years

Answer 18

Inactive faults

Question 19

Volcanic eruptions earthquake occurs

Answer 19

Pacific ring of fire

Question 20

Waves that transmit the energy released by an earthquake

Answer 20

Seismic waves

Question 21

An offset on the ground surface where an earthquake ruptures starts

Answer 21

Fault scarp

Question 22

The point within the earth where an earthquake ruptures starts

Answer 22

Focus

Question 23

The point at the surface of earth directly above the focus

Answer 23

Epicenter

Question 24

describes the total amount of energy that was released by the earthquake at the focus.

Answer 24

Magnitude

Question 25

is the study of earthquakes and seismic waves that move through and around the earth.

Answer 25

Seismology

Question 26

is a scientist who studies earthquakes and seismic waves.

Answer 26

Seismologist

Question 27

instrument used to measure the shaking of the ground during an earthquake.

Answer 27

Seismograph

Question 28

an instrument that responds to ground motions; earthquakes, volcanic eruptions, and explosions. Recorded and processed digitally.

Answer 28

Seismometer

Question 29

measures the quantity of seismic energy released by an earthquake.

Answer 29

The richter magnitude scale

Question 30

american seismologist and physicist who invented the richter magnitude scales in 1935

Answer 30

Charles Richter