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Science PT
Stack #196529
| Question | Answer |
|---|---|
| hard outer layer of the earth {crust} | lithosphere |
| the lithosphere is broken into large pieces called | plates |
| what is cracked like an eggshell | lithosphere |
| litho means | rock |
| earth's rocky outer shell consists of broken pieces that fit together like a | jigsaw puzzle |
| boundries between broken pieces of the lithospere or crust | plates |
| there are _ major plates and _ minor plates | 7 major and 13 minor |
| a dividing line | boundary |
| the _________ between the plates are cracks in earth's crust | boundries |
| according to thier explanation, known as the theory of plate tectonics, earth's plates move ever so slowly in _________ directions | various |
| educated guess | hypothesis |
| some clues have been found to prove the hypothesis | theory |
| all clues have been proven to facts | law |
| what three things do plates sometimes do | pull away, push toward, or slde past eachother |
| plate ______ divide one plate from another | boundries |
| how many main types of plate boundries are there | 3 |
| 1 _______ boundary- slipping past Ex. San Andrea Fault | transform |
| 2 _______ boundary- pulling apart Ex. Mid Atlantic Ridge | divergent |
| 3 ______ boundary- colliding Ex. Himalayas | convergent |
| the speed at which earth's _____ move is very slow indeed | plates |
| some small plates can move as much as several ______ per year, whereas others move only a few _______ per year | centimeters millimeters |
| speed = | distance over time |
| distance = | speed x time |
| in everday language, acceleration means? | speeding up |
| the rate at which velocity changes | aceleration |
| speed and direction of an object | velocity |
| 1 part or unit of a system | component |
| what involves any change in speed or direction | aceleration |
| in science, _______, refers to increasing speed, decreasing speed, or changing direction | acceleration |
| _______ in which speed decreases is also considered accelerationin science | motion |
| this change in speed is sometimes called deceleration, or _______ acceleration | negative |
| an object can be accelerating even if its speed is _______ | constant |
| the car will be accelerating if it follows _________ in the road or ___________ | gentle curve changes lanes |
| many objects continuosly change direction without changing _______ | speed |
| the simplest example of this type of motion is what | circular motion |
| example of circular motion? | mferris wheel and the moon |
| to determine the acceleration of an object, you must calculate the change in _____ during each unit of time | velocity |
| acceleration = | final velocity - initial velocityover time |
| begining or start of something | initial |
| units of measure for _______ is determined by the length and time used Ex. meters and seconds = m/s2 kilometer and hours = km/h2 cm and seconds = cm/s2 | acceleration |
Created by:
Breezy Breeze
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