gace002
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| What is a wheel with a line around it, a line could be a rope, cord, or chain. It changes the direction of force. | Pulley
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| A bar that pivots on a fixed point | lever
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| The use of force to move an object over a distance | work
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| a machine with few or no moving parts to which you apply just one force | simple machine
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| the gravitational force on an object | weight
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| force that resists the motion of objects, relative to each other, when the objects are touching | friction
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| force that pulls things toward earth | gravity
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| a force that acts between all masses and causes them to attract one another | gravitation
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| property of matter that keeps it moving in a straight line. keeps unmoving matter at rest move force is needed to accelerate a large mass then to accelerate a small mass | inertia
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| process by which a liquid changes into a gas. heat changes water from a liquid to a gas. | evaporation
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| process by which a gas changes to a liquid. when water vapor cools down | condensation
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| puffy indicates fair weather rain can develop as it grows | cumulus clouds
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| form low in the atmosphere. cover the sky. moderate (not heavy) rainfall or snowfall. | stratus clouds
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| form high in the atmosphere. made mostly of ice crystals. | cirrus clouds
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| water that falls to the atmosphere. light drizzle-stratus. rain and other forms of precipitation fall from cumulonimbus clouds. | precipitation
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| study of weather. forecasts predications about future weather. tools-thermometer (air temp), barometer (air pressure)anemometer (wind speed), hygrometer (humidity) | meteorology
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| a large body of air that has the same temp and humidity throughout. four types in US- continental polar(cool, dry weather) continental tropical (hot dry weather) maritime poplar (cold, humid) maritime tropical( warm, humid) | air mass
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| border where 2 air masses meet. cold front forms where a cold air mass moves under a warm air mass. heavy rain, thunderstorms, or snow. moves quickly | front
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| form where an warm air mass moves over a cold air mass. stratus clouds are formed. can produce rain or snow that can last for hours. | warm front
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| back and forth movement | vibration
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| loudness of a sound | volume
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| volume of a sound is measured in | decibels
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| materials that allows SOME light to pass through | translucent
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| allows MOST of the light that hits it to pass through | transparent
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| DON'T ALLOW any light to pass through | opaque
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| a living thing that feeds on wastes and the other remains of died plants and animals. breaks down wastes into nutrients. plants absorb nutrients from soil> animals eat plants and gets nutrients> | decomposers
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| an animal that eats ONLY plants | herbivore
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| an animal that eats ONLY other animals | carnivore
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| an animal that eats BOTH plants and animals | omnivore
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| any living thing that can make it's own food | producers
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| an animal that eats their own food | consumers
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| a group made up of the same kind of individuals living in the same ecosystem | population
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| all the population that live in the same place | community
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| formed by all living and nonliving things in an area. can be as small as the area under a rock. can be as large as a forest. | ecosystem
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| all the living and nonliving things that surround you. living-people, animals, plants. nonliving-water, air, soil, and weather. | environment
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| a post with threads wrapped around it. threads are inclined plane that curls around a post. | screw
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| two inclined planes placed back to back. change the direction of a force. used to cut and splint things. used to lift and push things. | wedge
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| how high or low sound is | pitch
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| number of vibrations per second. sound with a high frequency has a high pitch. | frequency
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Created by:
mbrannen
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