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แบบทดสอบ เร��อง Earthquake

http://www.krupu.com/skoolbuz/learning/EarthquakeQuiz/quizmaker.html

แบบทดสอบ เร��อง Tornadohttp://www.krupu.com/skoolbuz/learning/TornadoQuiz/

quizmaker.html

Earthquake Quizhttp://www.quizplz.com/science/earth/earthquake-quiz.htm

1. What is a seismograph?a) A device to measure the magnitude of earthquakesb) A device to locate the epicenter of an earthquakec) A device to measure the length of an earthquaked) A device to measure the damage of an earthquake

2. What is the range of the Richter scale?a) 1 to 100b) 1 to 50c) 1 to 10d) 1 to 5

3. What other major natural disaster do earthquake sometimes cause?a) Volcanoesb) Tsunamisc) Hurricanesd) Tornadoes

4. Which layer do earthquakes occur in?a) Troposphereb) Lithospherec) Asthenosphered) Mesosphere

5. What year did the great San Francisco earthquake occur?a) 1896b) 1906c) 1916d) 19266. Which fault causes California earthquakes?a) Alpine faultb) Great Glen faultc) Hope faultd) San Andreas Fault

7. Which plate in the Earth's crust causes the most earthquakes?a) North American plateb) Pacific platec) Eurasian plated) Antarctic plate

8. Which part of the United States West Coast is most due for a big earthquake?a) Oregonb) Northern California

c) Central Californiad) Southern California

9. What phenomena occurred with the 2004 Indonesian earthquake?a) The Indian Ocean water level droppedb) Sumatra became smaller in sizec) The Earth's rate of rotation was alteredd) The Earth's oceans became less salty

10. How long does a typical initial earthquake last?a) 10 secondsb) One minutec) 10 minutesd) One half hour

Answer of Earthquake Quiz1. The correct answer is aA seismograph or seismometer measures the magnitude of an earthquake. The seismograph actually measures of seismic waves caused by the earthquake. The horizontal pendulum seismograph was invented in 1880, but the first seismograph showed up around 132A.D. Today's seismographs use electronics and computers and are more accurate.2. The correct answer is cEarthquake magnitude is measured using the Richter scale which ranges from one to ten. A magnitude of two can barely be measured and is not felt. A magnitude of four causes mainly shaking and rattling but no major damage. A magnitude of six can cause minor destruction up to 100 miles across. A magnitude of eight can cause major destruction several hundred miles across. Finally, a magnitude of 10 would be

catastrophic, but has never been recorded in modern times.3. The correct answer is bWhen a major earthquake occurs, especially below the ocean surface, a tsunami he can occur. One of the most famous earthquake induced tsunamis occurred in 2004 in the Indian Ocean. Tsunamis can move up to 500 mph but are not visible in mid ocean as much of the energy and motion are below the surface of the water. A tsunami does not become a large destructive wave until it encounters shallow water closer to land. Tsunamis can penetrate several miles inland and cause widespread destruction often more than the original earthquake itself.4. The correct answer is bEarthquakes occur in the lithosphere which contains the Earth's outer crust. The lithosphere contains several plates that cause earthquakes when they rub against each other. One reason these plates rub together is because of the athenosphere below it, which is very soft due to the high heat of the Earth's core and allows a plates to move above it. The troposphere and mesosphere are part of the atmosphere and are not related to earthquakes.5. The correct answer is bThe great San Francisco earthquake occurred in 1906 and lasted a full minute which is quite long for an earthquake. This longer duration, along with the 8.0 magnitude, caused widespread destruction and fires. The epicenter was two miles off shore and occurred along nearly 300 miles of the San Andreas fault. The earthquake was felt from Oregon and Los Angeles and caused an estimated 3000 deaths. Nearly two thirds of the population were left homeless due to the widespread destruction from the earthquake and subsequent fires. This earthquake is still the worst natural disaster in California history.

6. The correct answer is dCalifornia earthquakes are caused by the San Andreas fault. The San Andreas fault is 800 miles long and runs through southwestern California. It is part of the boundary between the North American plate and the Pacific plate. The Pacific plate is the most active tectonic plate on the planet and is responsible for the earthquakes and volcanoes in the Pacific Rim of fire. At the San Andreas fault the Pacific plate is moving north and the North American plate is moving south. It is this movement that causes the rubbing and California's famous earthquakes.7. The correct answer is bThe Pacific plate causes the most earthquakes and this area is known as the Pacific Ring of fire. About 90 percent of the world's earthquakes in his horseshoe shaped region. The main areas in the Pacific Ring of fire are Western coasts of North and South America, Eastern Asia and the island chains of the South Pacific. This area is also responsible for most of the world's volcanoes.8. The correct answer is dOregon is north of the San Andreas fault and is in less danger of experiencing a major earthquake. Central California experienced a massive earthquake in 1857. Northern California experienced the great San Francisco earthquake in 1906. However, Southern California has not experienced a major earthquake in over 300 years. Most scientists agree that Southern California could experience a major earthquake at any time. Palm Springs and San Bernardino are especially vulnerable due to their proximity to the San Andreas fault.9. The correct answer is aThe earthquake that caused the 2004 Indonesian tsunami altered the Earth's speed of rotation and caused the day to shorten by the few milliseconds.

However, the tidal effects of the moon offset the changes within a few months. Water levels in the Indian Ocean did change, but only while the tsunami passed. Some tiny islands in Indonesia sank as much as a meter which may have decreased their size slightly. The earthquake also caused the Earth to wobble by a few centimeters, but this too was offset by another phenomenon called the Chandler wobble.10. The correct answer is aThe vast majority of earthquakes last 10 seconds or less However, the great San Francisco earthquake of 1906 lasted nearly a full minute. The longest earthquake ever recorded was the Indonesian earthquake of 2004. Most famous for causing the Indonesian tsunami, killing nearly a quarter million people, this earthquake lasted almost 10 minutes.

Tornado Quizhttp://www.fema.gov/kids/tor_guideqz.htm1. Which natural disaster comes from powerful thunderstorms and appears as rotating, funnel-shaped clouds?a) Hurricanesb) Tornadoesc) Earthquakesd) Floods

2. What wind speed can a tornado reach?a) 50 MPHb) 750 MPHc) 300 MPHd) 500 MPH

3. The area of the United States that has the highest risk for tornadoes is _______.a) Tornado Alleyb) Funnel Town

c) Disaster Pathwayd) Alaska

4. Tornado season typically begins in _____ and ends in _______.a) January; Septemberb) August; Decemberc) March; Augustd) November; June

5. What is the most important thing to do when a tornado is near by?a) Call your best friendb) Take coverc) Get your camera out so you can take picturesd) Watch TV until the tornado is gone6. A tornado watch is:a) When you get your binoculars out and look for a funnel cloudb) When tornadoes are possible in your areac) A device that tells you what time a tornado is going to striked) When a tornado has been spotted in your area

7. A tornado warning is:a) When tornadoes are possible in your areab) When your mom tells you to do your science homeworkc) When a tornado has been spotted in your aread) A device that predicts how big a tornado is going to be

8. What do you call a special room built inside the house that is designed to withstand very high winds and flying debris?a) Oz Roomb) Safe Room

c) Tornado Tester Roomd) There is no such room

9. There is never a lot of damage cause by tornadoes.a) Trueb) False

10. Which of the following are actions you can take to protect your home?a) Building a safe room in your houseb) Using devices like anchors, straps and clips to secure buildingsc) Reinforcing garage doors for strengthd) All of the above

Answer of Tornado Quiz1. The correct answer is B -- Tornadoes come from

powerful thunderstorms and appears as rotating, funnel-shaped clouds with winds that can reach 300 miles per hour.

2. The correct answer is C -- Tornado wind speed can reach up to 300 miles per hour.

3. The correct answer is A -- States in "Tornado Alley" (Arkansas, Iowa, Kansas, Louisiana, Minnesota, Nebraska, North Dakota, Ohio, Oklahoma, South Dakota, Texas) are at the highest risk for tornado damage.

4. The correct answer is C -- Tornado season is usually March through August, although tornadoes can occur at any time of year. They tend to occur in the afternoons and evenings. Tornadoes can occur in any state, but are more frequent in the Midwest, South and Southeast.

5. The correct answer is B -- Taking shelter once a tornado has been spotted near your house is the most important thing for you and your family to do. Find shelter in areas like a closet, interior bathroom or basement where there is little or no glass and limited objects that could become flying debris.

6. The correct answer is B -- Remember, a Watch signals that conditions exist to produce tornadoes and that you should remain alert for approaching storms.

7. The correct answer is C -- A Warning is issued when a tornado has actually been sighted or indicated by weather radar and you should take cover immediately.

8. The correct answer is B -- A safe room is a specially constructed interior room, such as a closet or even a bathroom, that is able to withstand the high winds of a tornado and flying debris. A family would retreat to this room when a tornado has been sighted. The FEMA Web site has building plans to help families build such a room -- which can save your life.

9. The correct answer is B, False -- Tornadoes strike with incredible velocity. Wind speeds from tornadoes can approach 300 miles per hour, and as the wind picks up, any loose items in the yard take flight. As the wind intensifies, shingles begin to lift ands trees are uprooted. Unprotected doors give way and the wind is inside the house, pushing the structure from within. Poorly attached window coverings give way and, as pressure builds, the garage door fails, allowing the full force of the wind inside. And all this happens in a matter of seconds.

10. The correct answer is D -- All of these are examples of prevention measures a family can take to reduce the damage caused by a tornado.

Tsunami Quizhttp://news.nationalgeographic.com/news/2010/02/100227/tsunami-quiz/

1. What can cause a tsunami?a. Landslideb. Underwater earthquakec. Volcanic eruptiond. All of the above

2. Do all undersea earthquakes trigger a tsunami?a. Yesb. No

3. What does the word "tsunami" mean in Japanese?a. Tidal waveb. Harbor wavec. Killer waved. Century wave

4. Witnesses have said that an approaching tsunami sounds like what?a. Firecrackers explodingb. A freight trainc. Ice crackingd. Nothing—there is absolute silence

5. What is the most active tsunami area?a. Pacific Oceanb. Caribbean Seac. Indian Oceand. North Atlantic Ocean

6. What is the deadliest tsunami ever recorded?

a. The 1782 South China Sea tsunamib. The 1868 northern Chile tsunamic. The 1883 South Java Sea tsunamid. The 2004 Indian Ocean tsunami

7. How fast can a tsunami travel?a. Up to 100 miles an hour (160 kilometers an hour)b. Up to 200 miles an hour (320 kilometers an hour)c. Up to 500 miles an hour (800 kilometers an hourd. Up to 1,000 miles an hour (1,600 kilometers an hour)

8. Can you detect a tsunami in the open ocean?a. Yesb. No

9. Where was the largest tsunami in history recorded?a. Indiab. Philippinesc. Chiled. Japan

10. What is frequently a warning sign of an impending tsunami?a. Winds suddenly change directionb. The sky suddenly clearsc. Seawater suddenly retreats from the shored. All of the above

Answer of Tsunami Quiz1. dTsunamis are usually generated by undersea earthquakes at tectonic plate boundaries, but they can also be triggered by underwater landslides, volcanic

eruptions, or even a giant meteor impact with the ocean.2. bAn undersea earthquake creates a tsunami only if it is of sufficient force and there is a violent enough movement of the seafloor to displace a massive amount of water.3. bOur English word "tsunami" comes from the Japanese term for "harbor wave." Tsunamis are not the same things as tidal waves and actually consist of a series of waves.4. bMany witnesses have described the sound of an approaching tsunami as being similar to a freight train's.5. aMost tsunamis, about 80 percent, happen within the Pacific Ocean’s Ring of Fire, a geologically active area where tectonic shifts make volcanoes and earthquakes common.6. dIn 2004 more than 200,000 people—the most ever recorded—died in an Indian Ocean tsunami that was triggered by an earthquake off Sumatra, Indonesia.7. cTsunamis race across the sea at up to 500 miles (805 kilometers) an hour—about as fast as a jet airplane. At that pace they can cross the entire expanse of the Pacific Ocean in less than a day.8. bNo. In the open ocean, the wave length of a tsunami is hundreds of miles long and only a few feet high. Boaters are safer out at sea during a tsunami than close to shore or tied up at port.9. d

In 1971 a wall of water 278 feet (84.7 meters) high surged past Ishigaki Island, Japan. It moved a 750-block of coral 1.5 miles (2.4 kilometers) closer to shore but did little other damage.10. cIf the tsunami's trough reaches shore first, it sucks the water seaward, exposing the seafloor suddenly. The wave's crest usually hits shore about five minutes later. Recognizing this phenomenon—and getting to higher ground immediately—can save lives.