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32 Cards in this Set
- Front
- Back
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items that need a satellite to work
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cell phone
GPS radios internet doppler radar |
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group from AL that helped design hubble telescope
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Marshall team
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1st African american to enter space
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Mae Jemison
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Huge telescope that orbits the earth and takes pictures of our universe
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hubble telescope
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earth's greatest source of energy
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sun
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space exploration benefited medical research on earth-- Name an example
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pacemaker for the heart
medical imaging |
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in what state was the first manned rocket built?
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alabama
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what has improved weather predications?
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weather satellites
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T/F -- space probes are the most effective way for scientists to study far way space locations such as pluto?
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TRUE
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what is the sun?
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a star, the greatest source of energy on earth, at the center os the universe
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the sun's ryas are more direct at the equator than at the pole. the equator will be _________ the temperature than the pole.
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the equator will be WARMER in temperature than the pole.
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how are the inner and outer planets alike? how are they different?
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Alike: both inner and outer orbit the sun.
Different: Inner planets are rocky and dense; OUTER planets are gas giants |
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what is the relative order of the planets from the sun
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mercury, venus, earth, mars, jupiter, saturn, uranus, neptune
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comets are similiar to planets because they both ________________.
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They both ORBIT THE SUN
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Inner planets are like asteroids because they are both _____________ and _____________
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They are both ROCKY AND DENSE
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__________________ is a small, rocky object that moves around the sun
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ASTEROID
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_______________ is an object in space made of ice, dust and gases
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COMET
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_____________ is a piece of rock or metal that has entered the earth's atmosphere
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METEROR
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Why is the earth the only planet that can support living things?
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other planets are to warm or cold,
have too much or too little gas, and don't have enough water or vegetation |
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how is friction produced?
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when 2 objects rub together
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what effect does friction have on the speed of a rolling object
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it will slow it down or stop it
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what type of surfaces will produce the most friction when they rub against one another
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ROUGH sufaces
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why does a figure skater skate on an ice surface
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because it produces LESS friciton
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what type of surfaces produce the least amount of friction?
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SMOOTH SURFACES
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if you push a toy car down an inlcine, its speed will _______? increase or decrease?
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INCREASE
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if you push a toy car up an inlcine, it will ______? slow down or speed up
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SLOW DOWN
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if 2 people push a box in opposite directions, why doesn't the box move?
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because the forces are BALANCED
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what is a force?
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a push or a pull
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when you push or pull a grocery cart, you are ________ force
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EXERTING force
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mechanics often use lubricants such as oil to REDUCE __________________ on machine parts
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REDUCE FRICITION
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_________________ is the idea that things in motion stay in motion, and things at rest stay at rest
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INERTIA is the idea that things in motion stay in motion, things at rest stay at rest
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If a dump truck filled with rocks is going DOWN a hill, will it build more MOMENTUM?
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YES, and it will make it HARDER to stop because it is heavier with the rock
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