1.
What prefix is used to identify clouds that appear from 2000 to 6000 meters above the surface?
Correct Answer
D. Alto-
Explanation
The prefix "alto-" is used to identify clouds that appear from 2000 to 6000 meters above the surface. This prefix indicates that the clouds are at a higher altitude compared to other cloud types.
2.
Clouds are formed based on __________________ and height.
Correct Answer
form
Explanation
Clouds are formed based on a combination of factors including temperature, humidity, and air pressure. Additionally, the height at which clouds form is determined by the vertical movement of air currents and atmospheric conditions. These factors contribute to the process of condensation, where water vapor in the air cools and changes into visible water droplets or ice crystals, resulting in the formation of clouds.
3.
Any storm with a low-pressure center causes a circular pattern of winds to form is a called a cyclone.
Correct Answer
A. True
Explanation
A cyclone is a type of storm that forms when there is a low-pressure center. This low-pressure center causes the air to circulate in a circular pattern, resulting in strong winds and often heavy rainfall. Therefore, any storm with a low-pressure center that causes a circular pattern of winds can be classified as a cyclone.
4.
Fog is....
Correct Answer
C. A cloud with its base on or near the ground.
Explanation
Fog is a meteorological phenomenon that occurs when there is a cloud with its base on or near the ground. It is formed when the air near the surface becomes saturated with water vapor, causing the water vapor to condense into tiny water droplets or ice crystals. This results in reduced visibility and a hazy appearance. Unlike evaporation from the ground or condensation on the ground, fog specifically refers to the presence of a cloud-like layer near the surface.
5.
What type of cloud is shown in this image?
Correct Answer
A. Cumulus
Explanation
The correct answer is cumulus because the image shows a cloud that has a fluffy, white appearance with a flat base and rounded top. Cumulus clouds are typically formed by the upward movement of warm air and indicate fair weather conditions. They are commonly seen on sunny days and are often referred to as "fair weather clouds."
6.
Clouds are mainly made of
Correct Answer
B. Water
Explanation
Clouds are mainly made of water vapor. When warm air rises, it cools down, causing the water vapor in the air to condense into tiny water droplets or ice crystals. These droplets or crystals then come together to form clouds. Therefore, the correct answer is water.
7.
What kind of cloud is puffy and very white?
Correct Answer
C. Cumulus
Explanation
Cumulus clouds are characterized by their puffy and white appearance. They are low-level clouds that usually have a flat base and a rounded top. These clouds are often associated with fair weather, but they can also develop into larger cumulonimbus clouds, which are associated with thunderstorms.
8.
Long, skinny clouds are called
Correct Answer
A. Cirrus
Explanation
Long, skinny clouds are called cirrus. Cirrus clouds are high-altitude clouds that are composed of ice crystals. They often appear wispy and feathery, and can be found at altitudes of 20,000 feet or higher. These clouds are typically associated with fair weather, but can also indicate the approach of a warm front or a tropical storm.
9.
Cumulonimbus clouds are also called
Correct Answer
D. Rain clouds
Explanation
Cumulonimbus clouds are called rain clouds because they are associated with heavy rainfall. These clouds are large and towering, reaching high altitudes in the atmosphere. They are formed through convection, where warm air rises and cools, causing condensation and the formation of water droplets. Cumulonimbus clouds often have an anvil-shaped top and are known for their ability to produce thunderstorms, heavy rain, lightning, and sometimes hail. Therefore, the term "rain clouds" accurately describes the nature and characteristics of cumulonimbus clouds.
10.
High level clouds appear 20,000 feet above the surface of Earth.
Correct Answer
A. True
Explanation
High level clouds, also known as cirrus clouds, typically form at altitudes of 20,000 feet or higher above the Earth's surface. These clouds are composed of ice crystals and appear thin, wispy, and white in color. They are often associated with fair weather conditions, but can also indicate an approaching warm front or an incoming storm system. Therefore, the statement that high level clouds appear 20,000 feet above the surface of the Earth is true.
11.
An ________________ is a large region of air that has a similar temperature and humidity.
Correct Answer
B. Air mass
Explanation
An air mass is a large region of air that has a similar temperature and humidity. It is characterized by its stability and can cover thousands of square miles. Air masses are often classified based on their source region, which determines their temperature and humidity characteristics. These air masses can influence weather patterns and bring changes in temperature, humidity, and precipitation when they move into a new area.
12.
When one air mass meets a different air mass,this meetjng place between air masses is called a ______________.
Correct Answer
C. Front
Explanation
When one air mass meets a different air mass, the meeting place between them is called a front. A front is a boundary where two air masses with different characteristics, such as temperature, humidity, and density, collide. This collision often leads to changes in weather conditions, such as the formation of clouds and storms. Therefore, the correct answer is front.
13.
A _________________ is a rainstorm that includes lightning and thunder.
Correct Answer
A. Thunderstorm
Explanation
A thunderstorm is a type of rainstorm that is characterized by the presence of lightning and thunder. Thunder is the sound that is produced when lightning heats the air around it, causing it to rapidly expand and contract. Therefore, a thunderstorm is the correct answer as it accurately describes a rainstorm accompanied by lightning and thunder.
14.
Knowing the different clouds allows us to predict the weather.
Correct Answer
A. True
Explanation
Understanding the different types of clouds enables us to make predictions about the weather. Different cloud formations can indicate various atmospheric conditions, such as the likelihood of precipitation or the presence of a storm. By recognizing these patterns, meteorologists and weather enthusiasts can forecast what the weather will be like in the near future. Therefore, it is true that knowing about different clouds helps in predicting the weather.
15.
Hurricane winds whip up large waves in the ocean.These waves cause a bilge of water in the ocean known as a _______________.
Correct Answer
B. Storm surge
Explanation
When hurricane winds blow over the ocean, they generate large waves. These waves create a buildup of water in the ocean, which is known as a storm surge. This surge of water can cause significant flooding and damage to coastal areas during a hurricane.
16.
Raindrops that fall through a layer of cold air can freeze to form _______________.
Correct Answer
A. Sleet
Explanation
When raindrops fall through a layer of cold air, the low temperatures cause the raindrops to freeze. This frozen precipitation is known as sleet. Sleet differs from snow in that it starts as raindrops and freezes before reaching the ground, while snow forms when water vapor directly freezes into ice crystals in the atmosphere. Therefore, sleet is the correct answer in this case.
17.
Air pressure is measured with a(n)_______________.
Correct Answer
D. Barometer
Explanation
A barometer is used to measure air pressure. It consists of a sealed container filled with mercury or aneroid capsules that are sensitive to changes in atmospheric pressure. As the air pressure changes, the level of mercury or the position of the aneroid capsules also changes, indicating the current air pressure. This device is commonly used in weather forecasting to monitor changes in atmospheric pressure, which can provide valuable information about upcoming weather conditions.
18.
Wind speed is measured with a(n) anemometer.
Correct Answer
A. True
Explanation
An anemometer is a device used to measure wind speed. It typically consists of cups that rotate when wind blows, and the rotation is used to calculate the speed of the wind. Therefore, it is correct to say that wind speed is measured with an anemometer.
19.
Rainfall is measured with an instrument called a(n) _______________.
Correct Answer
C. Rain gauge
Explanation
A rain gauge is an instrument used to measure the amount of rainfall. It consists of a cylindrical container with markings to indicate the amount of rainfall in millimeters or inches. When rain falls into the gauge, it collects in the container, allowing for accurate measurement of precipitation. This instrument is specifically designed for measuring rainfall and is commonly used by meteorologists, hydrologists, and farmers to track and analyze precipitation patterns.
20.
When a cold, dry, air mass meets a warm, moist, air mass,the cold air pushes the warm air __________
producing ________________weather.
Correct Answer
D. Upward,stormy
Explanation
When a cold, dry air mass meets a warm, moist air mass, the cold air pushes the warm air upward, creating stormy weather. This is because the warm air is less dense than the cold air, causing it to rise. As the warm air rises, it cools and condenses, forming clouds and precipitation. The interaction between the cold and warm air masses leads to the development of thunderstorms, heavy rain, strong winds, and potentially severe weather conditions.
21.
On a weather map, blue triangles on a line represent a(n)__________________; red half-circles on a line represent
a(n)_____________________.
Correct Answer
B. Cold front,warm front
Explanation
Blue triangles on a weather map represent cold fronts, while red half-circles represent warm fronts. A cold front occurs when a mass of cold air displaces a mass of warm air, leading to the formation of clouds, precipitation, and potentially severe weather. On the other hand, a warm front occurs when a mass of warm air replaces a mass of cold air, leading to a gradual increase in temperature and the potential for steady precipitation. These symbols help meteorologists track and understand weather patterns and make accurate forecasts.
22.
During a thunderstorm, particles of rain and ice rub against one another as they rush upward and downward, creating _______________.
.
Correct Answer
B. Static electricity
Explanation
During a thunderstorm, the particles of rain and ice rubbing against each other create static electricity. This is because the friction between the particles causes an imbalance of electrons, resulting in the buildup of static charges. When these charges become too great, they are discharged in the form of lightning, which is often accompanied by the sound of thunder.
23.
How are tornadoes and hurricanes alike?
Correct Answer
B. in both air rotates around a center
Explanation
Tornadoes and hurricanes are alike because in both weather phenomena, air rotates around a center. This rotation creates a swirling motion that is characteristic of both tornadoes and hurricanes. This similarity in the movement of air is one of the key features that these two weather events share.
24.
When does the funnel shaped cloud become a storm?
Correct Answer
D. When the tip touches the ground
Explanation
A funnel-shaped cloud becomes a storm when the tip touches the ground. This is because when the tip of the funnel cloud reaches the ground, it creates a tornado, which is a violent and destructive storm characterized by a rotating column of air. The touch-down of the funnel cloud's tip is the critical moment when the cloud transforms into a storm.
25.
Where are hurricanes fastest winds and heaviest rains found?
Correct Answer
B. Around the center
Explanation
Hurricanes are characterized by a swirling, rotating motion. The fastest winds and heaviest rains are typically found around the center, also known as the eye, of the hurricane. This is where the air pressure is lowest and the winds are strongest. As the air moves towards the center, it converges and rises, leading to intense rainfall. The edges of the hurricane, known as the eyewall, also experience strong winds and heavy rain, but the most extreme conditions are concentrated around the center.
26.
Last Saturday, Violeta saw the sky is blue, the sun shines brightly and there is no rain. She visited her friends and played outdoor games. What kind of weather was Saturday morning?
Correct Answer
D. Fine weather
Explanation
The given answer, "Fine weather," is the most appropriate choice based on the description provided. The sky being blue, the sun shining brightly, and no rain indicate a pleasant and clear morning, which is typically associated with fine weather.
27.
It is a place where all the data about the weather are being gathered and evaluated.
Correct Answer
B. Weather station
Explanation
A weather station is a facility where various data related to weather conditions are collected and analyzed. It serves as a centralized location for gathering information such as temperature, humidity, wind speed, and precipitation. This data is then used to evaluate and forecast weather patterns. Weather stations can be found in various locations, including the Philippines, and are used by meteorologists, scientists, and the media to provide accurate and up-to-date weather information to the public through mediums like television and radio.
28.
A barometer measures ________________.
Correct Answer
B. Pressure
Explanation
A barometer is an instrument used to measure atmospheric pressure. It is commonly used in weather forecasting as changes in atmospheric pressure can indicate the approach of a storm or other weather patterns. By measuring pressure, a barometer can provide valuable information about the current weather conditions and help predict future weather changes. Therefore, the correct answer is pressure.
29.
Pressure is _______________.
Correct Answer
B. Higher at sea level
Explanation
Pressure is higher at sea level because the weight of the air above exerts more force per unit area at lower altitudes. As we move higher up the mountain, there is less air above, resulting in lower atmospheric pressure. Therefore, the pressure decreases with increasing altitude.
30.
A place that doesn’t get much rain over many years would have a cold climate.
Correct Answer
B. False
Explanation
The given statement suggests that a place that doesn't receive much rain over many years would have a cold climate. However, this is not necessarily true. The amount of rainfall a place receives does not determine its climate. Climate is determined by various factors such as latitude, altitude, ocean currents, and prevailing winds. Therefore, it is possible for a place with little rainfall to have a hot or warm climate, depending on these other factors.
31.
What are scientist who study weather called?
Correct Answer
B. Meteorologists
Explanation
Meteorologists are scientists who study weather patterns, climate, and atmospheric conditions. They use various tools and techniques to collect data, analyze it, and make predictions about weather patterns. They study factors such as temperature, humidity, wind patterns, and precipitation to understand and forecast weather events. Biologists study living organisms, while rainologists is not a recognized term in the field of science. Therefore, the correct answer is meteorologists.
32.
Which of these is not shown on a weather map?
Correct Answer
C. Population
Explanation
A weather map typically displays information related to weather conditions such as temperature, air pressure, wind speed, and precipitation patterns. Isobars are lines on a weather map that connect points of equal atmospheric pressure, while precipitation refers to any form of water that falls from the atmosphere to the Earth's surface. However, population is not a weather-related factor and therefore would not be shown on a weather map.
33.
In what ways does the Sun influence weather?
Correct Answer
D. All answers are correct
Explanation
The Sun influences weather in multiple ways. Firstly, it heats the water on Earth, leading to the formation of clouds and precipitation. Secondly, it heats the air in the atmosphere, causing it to rise and creating air currents. Lastly, the Sun evaporates water in the atmosphere, which contributes to the formation of clouds. Thus, all of the given answers are correct as they highlight different aspects of how the Sun influences weather.
34.
The constant recording of weather information helps to determine the climate of an area.
Correct Answer
A. True
Explanation
The constant recording of weather information is important because it allows scientists to collect data over a long period of time, which helps in determining the climate of an area. By analyzing weather patterns, temperatures, precipitation levels, and other factors, researchers can identify trends and patterns that contribute to the overall climate of a particular region. This information is crucial for understanding climate change, predicting future weather conditions, and making informed decisions about agriculture, infrastructure, and other aspects of human life that are impacted by climate.
35.
The movement of air is called ______
Correct Answer
B. Wind
Explanation
The movement of air is commonly referred to as wind. Wind is caused by the uneven heating of the Earth's surface, which creates differences in air pressure. Air moves from areas of high pressure to areas of low pressure, resulting in the flow of wind.
36.
Which of these is not a weather instrument?
Correct Answer
B. Geiger counter
Explanation
A geiger counter is not a weather instrument because it is used to detect and measure radiation levels, specifically ionizing radiation. Weather instruments are used to measure and record various atmospheric conditions such as temperature, humidity, air pressure, and wind speed, which are not related to radiation.
37.
What weather instrument tells wind direction?
Correct Answer
C. Wind vane
Explanation
A wind vane is a weather instrument specifically designed to measure the direction of the wind. It consists of a pointer attached to a freely rotating axis, which aligns itself with the direction of the wind. By observing the position of the pointer, one can determine the wind direction accurately. Unlike the other options listed, such as a rain gauge or barometer, which measure different weather parameters like rainfall or atmospheric pressure, a wind vane is specifically used to determine wind direction. An anemometer, on the other hand, measures wind speed, not direction.
38.
A meteorologist would use a ___________ to determine air pressure
Correct Answer
A. Barometer
Explanation
A meteorologist would use a barometer to determine air pressure because a barometer is a scientific instrument used to measure atmospheric pressure. It consists of a sealed glass tube filled with mercury or another liquid, with one end open to the atmosphere and the other end sealed. The difference in height of the liquid in the tube indicates the air pressure. By measuring the air pressure, meteorologists can gather information about weather patterns and make predictions.
39.
A snowstorm with 56-km/h (35-mph) winds and heavy snowfall?
Correct Answer
A. Blizzard
Explanation
A snowstorm with 56-km/h (35-mph) winds and heavy snowfall is called a blizzard. A blizzard is a severe winter storm characterized by strong winds, low temperatures, and heavy snowfall. These conditions can cause reduced visibility, dangerous travel conditions, and can lead to snowdrifts and snow accumulation. The combination of high winds and heavy snowfall is what distinguishes a blizzard from a regular snowstorm.
40.
Any storm with a low-pressure center that causes a circular pattern of winds to form is called a cyclone
Correct Answer
A. True
Explanation
A cyclone is a type of storm characterized by a low-pressure center and circular pattern of winds. This means that any storm with these features can be classified as a cyclone. Therefore, the statement is true.