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Science EOCA Sem. 2
Science EOCA Review Semester 2
| Question | Answer |
|---|---|
| Earth is unique in the solar system because of its abundance of what? | Water |
| What characteristics do terrestrial inner planets have in common? | rock and metals |
| Which phase of the moon is not visible from earth? | New Moon |
| When could a lunar eclipse occour? | Full Moon |
| When a main sequence star begins to burn He->C it becomes what? | Red Giant |
| Prostars evolve to main-sequence stage when what occours in extremely high temperatures in its core? | Nuclear Fusion |
| What occours when the core of massive stars collapse inward, then expand in a brilliant explosion? | Supernova |
| First studed by issac newton what is produced when visible light passes through a prism and is refracted. a rainbow in the sky after a rainshower illustrates the samee concept. | a spectrum |
| A spectra is the chemical fingerprint of an element produced wwhen their light is recorded througgh an instrument known as a what. Astronomers use this pattern to study the chemocal composition of the object, as wll as other phisical properties? | Spectrascope |
| What effect is the concept that describes the relationship between the wavelength energy (light or sound) and its direction of travel or motion, as observed from stationary point. study this diagram and explain this relationship? | Doppler Efffect moving away from an observer wave increase and moving closer to an observer waves decrease |
| Energy (Radiation) is produced in the core of stars through the process of what? | Nuclear Fusion |
| What is the other reason for this process? | carries information or data |
| The presence of liquid water makes earth unique in our solar system. However recent studies indicate that earlier in our solar system's history other planets, especially what, also had water on its surface? | Mars |
| What happens when wavelength increases in electromagnetic spectrum? | this include microwaves and radiowaves |
| What happens when wavelength decreases in the electromagnetic spectrum? | this includes ifrarred, visible light, i;traviolet, x-rays, and gamma rays |
| how does frequency increase? | frequency increasees when wavelength decreases |
| what happens when frequency decreases? | wavelength increases |
| What technique did hubble use to study the cosmic expansion? | red shift of light |
| What do you call tear in the fabric of space time that are created by the collapse of super-massive stars? | Black holes |
| What is so strong in black hole that light can't even escape it's grasp? | gravity |
| How do scientists identify and study black holes? | Spectroscope is used to study x-ray emmissions? |
| What is apparent magnitude of a star? | how big a star looks from earth |
| What is absolute magnitude of a star? | How bright a star is from a standard distance (32.6 light years away) |
| What do we call the change in spectra of distant gallaxys as they are farther away from earth, which was indetified by hubble in 1924? | Red Shift |
| Red shft is evidence for what? | an expanding universe and the big bang theroy |
| When the earth leans 23.5 degrees toward the sun what is that position called? what is the date? | Summer solstice June 21st |
| When the earth leans 23.5 degrees away from the sun what is that position called? what is the date? | Winter solstice December 21st |
| What is it called when the earth is between the summer solstice and the winter solstice? | Fall Equinox September 21 |
| What is it called when the earth is beteen the winter solstice and the summer solstice? | Spring Equinox March 21 |
| What imaginary line throught he earth goes from lower left to upper right at a 23.5 degree angle? | axis |
| What are renewable resources? | resources that can be reused or replenished again and again |
| What do you call the gases that create a blanket of heat that naturally warms earth's atmosphere and surface? | Greenhouse Effect |
| What do we call the process of turning sunlight and carbon diaoxide into oxygen, which cynobacteria did a long time ago? | Photosynthesis |
| What is the accumulation of oxygen atoms in the stratosphere that sheilds earth from UV radiation? | Ozone Layer |
| What do you call the process where heat rises moves to the poles cool drops and returns to the equator, thus balancing water and air temperatures? | Convection |
| What three factors afect the temperature of a region? | Latitude, elevation, and distance from eater |
| What is the emthod of heat transfer whrn the sun gives energy to the earth? | Radiation |
| Does energy from the sun that hits parts of the earth that are pointing away from the sun heat the surface more directly or less directly? | less directly |
| How does El Nino affect global climate and thus humans? | Weather Patterns become opposite(dry becomes wet and wet becomes dry), which affects agriculture(farming) and fishing(oceans) |
| What is one thing some scientist say that humans have done to increase global warming? | burn fossil fues (oil, coal, and gas) |
| What is the greatest problem from coal burning power plants? | Acid Rain |
| What are the lines called on an air temerature map that connect air masses of equal temperature? | isotherms |
| Why do costal cities genrrally have milder climates? | They are near water which obsorbs and holds energy. |
| What is the ocean current that is most responsible for mild steady climate because it obsorbs large amounts of heat energy and moves it to the cooler waters of the artic ocean? | oceanic coveyor belt |
| What happens to water temperature when the oceanic conveyor belt brings it to the coast of greenland? | gets cooler |
| What happens to silinty wheen water arrives off the coast of greenland? | it increases because it hold more (NaCl) |
| What happens to density of water when it arrives off the coast of greenland? | it increases becaiyse molecules are closer together |
| What is the percent of liquid fresh water on or near earths surface? | <1% |
| How could global warming affect the supply of fresh water? | less supply |
| What is the beginning of earth's hydrologic(water) cycle? | Sun(energy) |
| What do you call the process that occours in clouds where water vapor(gas) become water dropplets(liquid)? | Condensation |
| What is the process called where liquid water becomes a gas? | evaporation |
| What do you call the process where water droplets fall from the sky? | precipitation |
| what do you call the part of the hydrologic cycle where water is kept together? | storage(ocean) |
| What is unique about water as a substance? | it exists in all thrree states or phases |
| On which side of mountain ranges do rain shadows develop? | Leeward side |
Created by:
tboever17
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