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Science Exam Study
Science MidTerm Exam Study Guide
| Question | Answer |
|---|---|
| How water gets into the atmosphere -> | evaporation |
| Form of water falls from clouds to Earth's surface -> | precipitation |
| Water vapor changes into liquid water -> | condensation |
| Why does a sea breeze blow from ocean to land? | land heats quicker than water |
| Why does a land breeze blow from land to ocean? | land cools quicker than water |
| What type of weather is associated with high air pressure? | clear sunny weather |
| What type of weather is associated with low air pressure? | some sort of weather (not clear) |
| Weather instrument used to find temperature -> | thermometer |
| Weather instrument used to find air pressure -> | barometer |
| Weather instrument used to find wind speed -> | anemometer |
| Weather instrument used to find wind direction -> | wind vane |
| Weather instrument used to find relative humidity -> | psychrometer |
| How heat in transferred between objects/substances touching -> | conduction |
| Heat being given off by an object -> | radiation |
| Heat transfer within a liquid or the atmosphere -> | convection |
| What type of weather does a cold front bring? | stormy weather followed by clear cooler weather |
| What type of weather does a warm front bring? | some kind of light precipitation followed by humid warmer weather |
| What type of weather does a stationary front bring? | continuous precipitation (usually for days) |
| What direction does the jet stream blow? | west to east |
| Why do global winds curve? | because of Earth's rotation |
| What type of air do polar easterlies carry? | Cold |
| What direction do the westerlies blow? | Move to the equator/move no direction |
| How is periodic table arranged? | By increasing atomic # |
| What are rows known as? | Periods |
| What are columns known as? | Groups/Families |
| What do elements in the same column have in column? | characteristics/properties |
| How do you find the number of protons for an atom? | atomic # = protons |
| How do you find the number of neutrons for an atom? | mass - # of protons |
| How do you find the number of electrons for an atom? | same as the # of protons |
| pH of an acid -> | less than 7 (between 0-6) |
| pH of a base -> | more than 7 (between 8-14) |
| pH of a neutral -> | 7 |
| releases H+ ions -> | acids |
| releases OH- ions -> | bases |
| turns litmus paper blue -> | base |
| turns litmus paper red -> | acid |
| Name a couple of common bases... | soap, blood, drain cleaner, milk |
| Name a couple of common acids... | lemon juice, citrus anything, vinegar |
| What does law of conservation of mass state? | Mater is never created or destroyed. |
| What elements are in the following compound? C6H12O6 | Carbon, hydrogen, Oxygen |
| How many atoms are in each element? (C6H12O6) | Carbon-6/Hydrogen-12/Oxygen-6 |
| According to the law of conservation of mass, how many atoms of oxygen must be in the product? (2 H20) | 2 |
| List Electromagnetic waves in order-lowest-highest frequency -> | Radio, Micro, Infrared, Visible, Ultraviolet, X-Rays, Gamma Rays |
| How are frequency and wavelength related? | as frequency goes up, the wavelength (or the length of the wave) goes down |
| Where can Electromagnetic waves travel, other waves can't? | Vacuum (same wavelength, shorter speed) |
| What do waves transfer? | energy |
| Formula for speed -> | speed = distance / time |
| How can an object accelerate? | by changing speed and direction |
| Newton's 1st Law | Law of Inertia An object in motion will remain in motion, an object at rest will remain a rest; unless acted upon by an unbalanced force. |
| Newton's 2nd Law | force = mass * acceleration |
| Newton's 3rd Law | For every action, there is an equal and opposite reaction. |
| What can increase acceleration of an object? | Increase the force or decrease the mass. |
| List the types of friction... | rolling friction; static friction; rolling friction; fluid friction |
| What is a reference point? | object that can help determine the acceleration of another object |
Created by:
trumpetsis96
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