Term
When do two objects repel each other?
When do they attract? |
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Definition
| They repel eachother when they have the same charge , they attract when they are opposite charges. |
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Term
| three ways an object can become statically charged. |
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Definition
1: friction
2:induction
3:conductin |
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Term
| what type of material is a good conductor? what is a good insulator? |
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Definition
| metal/copper is a good conductor. Plastic is a good isulator. |
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Term
| An object with equal amount of protons and electrons has a -------charge. |
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Definition
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Term
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Definition
1: battery
2: switch
3: light bulb
4: resistor
5: wire |
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Term
| Difference between series and parallel |
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Definition
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Term
| Explain what happens to appliances if one burns out in series or in parallel circuit. |
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Definition
| If one burns out in a series all of the bulbs blow out, in a parallel then only the one conected blows out |
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Term
| What are the names of the terminals on a battery? |
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Definition
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Term
| current is the rate at which charges move through a ----------. |
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Definition
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Term
| whether or not charges will move in a material depends partly on how tightly ----- are held in the atoms of the materials. |
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Definition
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Term
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Definition
| in condcutors the current will flow through directly and propotional |
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Term
| Who is wegner and why is he important to plate techtonics ? |
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Definition
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Term
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Definition
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Term
| what is the theory of continental drift and give the evidences of this theory? |
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Definition
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Term
| What are magnetic stripes and how doo they change over time? |
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Definition
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Term
| What are the layers of the earth? how much volume does each layer make up? |
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Definition
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Term
| Where is the crust thickest on earth? Where is it thinnest? |
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Definition
| The thickest continental crust thickest on e |
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Term
| features and sizes of the layers of the earth:inner and outer core, mantle, and crust. |
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Definition
1: the inner core is the hottest layer. composed of nickel and iorn
2: outer core: composed of magma,nickel,iorn
3: mantle: is made of magma
4: the crust is made up of |
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Term
| Radio active material have unstable --------. |
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Definition
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Term
| What happens at the San Adreas fault in California. |
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Definition
| Earthquakes occur due to the plates sliding. |
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Term
| Give the basic features and natural disaters that come from each of the three plate boundries. |
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Definition
convergent: the plates are moving together>> << causing earthquakes and volcanoe eruptions
divergent : plates move away from eachother << >>
transform:when the plates move or rub agains eachother in an up &down motion |
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Term
| what does a seismograph measure? |
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Definition
| measures the force ,and waves released during a earthquake. |
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Term
| what are P &S waves ? Be able to read graphs and charts for the waves. |
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Definition
| P waves go through liquid and solids inside the earth, s waves only go through liquid. |
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Term
| What does the richter scale measure? how does 3 vs. 7 on the scale differ. |
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Definition
| I measures the magnitude. |
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Term
| basic characteristics of the main atmospheric layers |
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Definition
toposphere: the layer where the weather occurs
stratosphere: temp rises withn but still ramains below freezing.
mesosphere:The air is thin ,the temp is low
thermosphere: the temp increases with height. the air would feel cold.
exosphere:very few atmospheric molecules. |
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Term
| where is the ozone layer and why is it important? how do CFC's change the ozone? |
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Definition
| the ozone layer seperates the tropspher from the stratosphere. CFC's change the ozone by the uv radiation breaking the bonds in the ozone. |
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Term
| What are the three main types of clouds |
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Definition
cirus : thin and whispy
stratus: grey they cover the entire sky
cumulus : low level ,puffy clouds |
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Term
| What is the relationship between air temperature ,dew point and humidity? |
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Definition
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