Understanding Typhoons

Which agency of the government monitors and tracks tropical cyclones that enter the Philippine Area of Responsibility?

• PHIVOLCS

• DOST

• DENR

• PAGASA

The photograph below shows a satellite image of a hurricane. How can a satellite image of a hurricane help weather forecasters?

• It can warn residents of hazardous weather conditions this is the most precise and nearest.

• It can explain the effects of global warming on ocean currents.

• It can predict the times of high tide and low tide

• It can predict the total number of storms to occur in one year.

Where do typhoons form?

• In a river or stream

• At plate boundaries

• Over the ocean

• Under the Earth

Among the following choices, which is the most CORRECT regarding how landmasses and bodies of water impact the strength of typhoons?

• Typhoons gain energy from warm ocean water and lose energy over cold water. Interaction with land will weaken a typhoon.

• They affect typhoons based on what or how strong the energy is released by the landforms and bodies of water. Typhoons strengthen in volume and speed over cold water and gain more strength over landmasses.

• Typhoons setback on ocean water and lose energy over cold water as well. The temperature of the water does not affect it at all. Interaction with landforms will deteriorate the typhoon.

• Typhoons gain energy from warm ocean water and lose energy over cold water. Interaction with land will strengthen a typhoon.

Which of the following is NOT a name for a tropical cyclone?

• Typhoon

• Cyclone

• Depression

• Hurricane

What happens to tropical cyclones when they make landfall?

• they lose strength

• they increase in strength

• the air rotates in a different direction

• the air over the land warms quickly

Which of the following typhoon has the international name of Haiyan?

• Typhoon Yolanda

• Typhoon Sendong

• Typhoon Ondoy

• Typhoon Agaton

Which of the following BEST describes the formation of tropical cyclones?

• High-pressure air pushes wind away causing a draining effect

• The wind is drawn into a low-pressure area at the Earth's surface, forming a spiral pattern

• Two air masses meet head-on and roll backward, causing a typhoon and a hurricane

Tropical cyclones vary in size according to their wind speed. Which list of the following below arranges storms from smallest to largest?

• The tropical storm, tropical depression, cyclone, severe tropical storm

• Typhoon, tropical depression, tropical cyclone, super typhoon

• The tropical depression, tropical storm, typhoon, super typhoon

• Cyclone, tropical storm, super typhoon, an extratropical cyclone

What is a Typhoon?