اختبار اختيار من متعدد تفاعلي: اختبار العلوم انسباير - Severe Weather Risks
This educational assessment for seventh-grade students focuses on the theme of Severe Weather Risks. The test evaluates understanding of hurricane classification using wind speeds, the Saffir-Simpson scale, and the geographical occurrence of tornadoes in the United States. It also covers meteorological technologies like Doppler on Wheels (DOW), the definition of storm surges, the causes of droughts, the Enhanced Fujita (EF) scale for tornado damage, and the impact of urbanization on flooding and agricultural productivity.
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اختبار شهادة تدريبي مؤقت للصف والمادة والفصل نفسه.
اختر إجابة واحدة لكل سؤال. عند الاختيار ستظهر النتيجة فورًا: الأخضر صحيح، والأحمر خطأ، وسيظهر تفسير الإجابة مباشرة إن كان متوفرًا. وبعد آخر سؤال ستظهر الدرجة النهائية تلقائيًا.
What is the minimum wind speed required for a tropical storm to be classified as a hurricane?
Explanation
A tropical storm is upgraded to hurricane status when its sustained wind speeds reach a minimum of 119 km/h (74 mph).
Question 2
Points: 1
which category describes a hurricane with wind speeds of 210–249 km/h and major erosion of beach areas?
Explanation
According to the Saffir-Simpson Hurricane Wind Scale, a Category 4 hurricane features wind speeds between 209-251 km/h and causes extreme damage, including major erosion.
Question 3
Points: 1
Where do most tornadoes in the United States occur?
Explanation
This region, often called Tornado Alley, has the specific atmospheric conditions necessary for frequent tornado formation.
Question 4
Points: 1
Which technology, used since 1995, consists of a powerful radar permanently mounted to a flatbed truck to analyze storm development?
Explanation
Doppler on Wheels (DOW) is a mobile radar system that allows scientists to get close to developing storms to gather high-resolution data.
Question 5
Points: 1
A storm surge is defined as:
Explanation
A storm surge is the abnormal rise of water generated by a storm, over and above the predicted astronomical tides.
Question 6
Points: 1
What is a primary cause of droughts?
Explanation
Large, persistent high-pressure systems prevent moist air from rising and condensing, which stops the formation of precipitation.
Question 7
Points: 1
Which damage category on the Enhanced Fujita (EF) scale involves "Incredible Damage" where strong frame houses are lifted off foundations?
Explanation
EF-5 is the highest rating on the EF scale, characterized by wind speeds over 200 mph and total destruction of well-built structures.
Question 8
Points: 1
How does urbanization contribute to flooding?
Explanation
As cities grow, permeable ground is replaced by impermeable concrete and asphalt, preventing water from soaking into the soil and increasing the volume of surface runoff.
Question 9
Points: 1
What is a major agricultural impact of a prolonged drought?
Explanation
Drought conditions deplete the water sources needed for farming, leading to crop failure and reduced food production.
Question 10
Points: 1
Meteorologists use which of the following to monitor hurricanes at sea?
Explanation
A combination of orbital satellite imagery and local data from weather buoys and ships is used to track hurricane movement and strength over open water.
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