Diagnostic Test ( explanation text)

HURRICANES

Hurricanes or also called tornado are strong winds with a wind speed of 120 km/h or more. Hurricane often occurs in the tropical areas between the northern and southern lines, except in the areas which are very close to the equator. Hurricane is caused by different pressure in a weather system. Hurricane generally spins with a radius of hundreds of kilometers around an extreme low-pressure system area at a speed of about 20 km/h. Why and how a hurricane happen?

Hurricane occurs due to differences in air pressure or temperature difference in an area or region. This is related to the amount of solar thermal energy received by the earth’s surface. In a region that receive more solar thermal energy will have warmer air temperatures and lower air pressure. Differences in temperature and air pressure will occur between areas that receive more heat energy with other areas that receive less heat energy which resulted an airflow in that region.

Hurricanes occur in the ocean around the equator, at about 5º N. There, the temperature of the sea water is very warm over 27ºC. When the temperature is heating up, the air will flow upwards. Because of the air rises a lot, then the air pressure above becomes high and low air pressure becomes low. The rising air gradually become cool, then it falls while the warm air rises upward. The process of rising the turbulence of this cold and warm air occurs repeatedly and caused the vapor pressure produced enormous energy and air temperature becomes very low, which generated a clump of very dangerous spinning air. This spinning air clump which is called a hurricane.

1. According to passage, …

• hurricanes are strong winds with a wind speed of 120 km/h or more. 

• hurricanes are temperature difference in some area.

• hurricanes are air pressure from sea water

• strong wind is from very close equator.

• the difference air pressure receives less energy

HURRICANES

Hurricanes or also called tornado are strong winds with a wind speed of 120 km/h or more. Hurricane often occurs in the tropical areas between the northern and southern lines, except in the areas which are very close to the equator. Hurricane is caused by different pressure in a weather system. Hurricane generally spins with a radius of hundreds of kilometers around an extreme low-pressure system area at a speed of about 20 km/h. Why and how a hurricane happen?

Hurricane occurs due to differences in air pressure or temperature difference in an area or region. This is related to the amount of solar thermal energy received by the earth’s surface. In a region that receive more solar thermal energy will have warmer air temperatures and lower air pressure. Differences in temperature and air pressure will occur between areas that receive more heat energy with other areas that receive less heat energy which resulted an airflow in that region.

Hurricanes occur in the ocean around the equator, at about 5º N. There, the temperature of the sea water is very warm over 27ºC. When the temperature is heating up, the air will flow upwards. Because of the air rises a lot, then the air pressure above becomes high and low air pressure becomes low. The rising air gradually become cool, then it falls while the warm air rises upward. The process of rising the turbulence of this cold and warm air occurs repeatedly and caused the vapor pressure produced enormous energy and air temperature becomes very low, which generated a clump of very dangerous spinning air. This spinning air clump which is called a hurricane.

2. Where do the Hurricanes occur?

• Northern line

• Southern line

• Equator

• Between northern and southern line

• Sea water

HURRICANES

Hurricanes or also called tornado are strong winds with a wind speed of 120 km/h or more. Hurricane often occurs in the tropical areas between the northern and southern lines, except in the areas which are very close to the equator. Hurricane is caused by different pressure in a weather system. Hurricane generally spins with a radius of hundreds of kilometers around an extreme low-pressure system area at a speed of about 20 km/h. Why and how a hurricane happen?

Hurricane occurs due to differences in air pressure or temperature difference in an area or region. This is related to the amount of solar thermal energy received by the earth’s surface. In a region that receive more solar thermal energy will have warmer air temperatures and lower air pressure. Differences in temperature and air pressure will occur between areas that receive more heat energy with other areas that receive less heat energy which resulted an airflow in that region.

Hurricanes occur in the ocean around the equator, at about 5º N. There, the temperature of the sea water is very warm over 27ºC. When the temperature is heating up, the air will flow upwards. Because of the air rises a lot, then the air pressure above becomes high and low air pressure becomes low. The rising air gradually become cool, then it falls while the warm air rises upward. The process of rising the turbulence of this cold and warm air occurs repeatedly and caused the vapor pressure produced enormous energy and air temperature becomes very low, which generated a clump of very dangerous spinning air. This spinning air clump which is called a hurricane.

3. What happen to the area that receives more solar thermal?

• The weather is changed

• Warmer air temperature

• Lower air pressure

• Warmer air temperature and lower air pressure

• Sea water is warm

HURRICANES

Hurricanes or also called tornado are strong winds with a wind speed of 120 km/h or more. Hurricane often occurs in the tropical areas between the northern and southern lines, except in the areas which are very close to the equator. Hurricane is caused by different pressure in a weather system. Hurricane generally spins with a radius of hundreds of kilometers around an extreme low-pressure system area at a speed of about 20 km/h. Why and how a hurricane happen?

Hurricane occurs due to differences in air pressure or temperature difference in an area or region. This is related to the amount of solar thermal energy received by the earth’s surface. In a region that receive more solar thermal energy will have warmer air temperatures and lower air pressure. Differences in temperature and air pressure will occur between areas that receive more heat energy with other areas that receive less heat energy which resulted an airflow in that region.

Hurricanes occur in the ocean around the equator, at about 5º N. There, the temperature of the sea water is very warm over 27ºC. When the temperature is heating up, the air will flow upwards. Because of the air rises a lot, then the air pressure above becomes high and low air pressure becomes low. The rising air gradually become cool, then it falls while the warm air rises upward. The process of rising the turbulence of this cold and warm air occurs repeatedly and caused the vapor pressure produced enormous energy and air temperature becomes very low, which generated a clump of very dangerous spinning air. This spinning air clump which is called a hurricane.

4. What is the temperature of sea water when Hurricane occurs?

• 5^o N

• 27^oC

• 20 km/h

•   Over 27^oC

• 120 km/h

HURRICANES

Hurricanes or also called tornado are strong winds with a wind speed of 120 km/h or more. Hurricane often occurs in the tropical areas between the northern and southern lines, except in the areas which are very close to the equator. Hurricane is caused by different pressure in a weather system. Hurricane generally spins with a radius of hundreds of kilometers around an extreme low-pressure system area at a speed of about 20 km/h. Why and how a hurricane happen?

Hurricane occurs due to differences in air pressure or temperature difference in an area or region. This is related to the amount of solar thermal energy received by the earth’s surface. In a region that receive more solar thermal energy will have warmer air temperatures and lower air pressure. Differences in temperature and air pressure will occur between areas that receive more heat energy with other areas that receive less heat energy which resulted an airflow in that region.

Hurricanes occur in the ocean around the equator, at about 5º N. There, the temperature of the sea water is very warm over 27ºC. When the temperature is heating up, the air will flow upwards. Because of the air rises a lot, then the air pressure above becomes high and low air pressure becomes low. The rising air gradually become cool, then it falls while the warm air rises upward. The process of rising the turbulence of this cold and warm air occurs repeatedly and caused the vapor pressure produced enormous energy and air temperature becomes very low, which generated a clump of very dangerous spinning air. This spinning air clump which is called a hurricane.

5. “… caused the vapor pressure produced enormous energy …” (Paragraph 3)

What is the synonym of the underline word?

• Very big

• Warm

• Cool

• Small

• Lower