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ILS Final Sem 2
| Question | Answer |
|---|---|
| Layers of Earth’s Interior | crust, mantle, core |
| Classification of Rocks | igneous, metamorphic, sedimentary |
| Rock Cycle | processes in which rocks are continuously changed from one type to another |
| Continental Drift | continents move slowly over Earth’s surface |
| Wegener | could not explain how the continents move through the ocean floor |
| Fault | break in a rock mass along which movement occurs |
| Magma | rises because of density |
| Shield volcanoes | produced by quiet eruptions |
| Water Cycle | precipitation, evaporation, condensation, transpiration |
| Groundwater | most of Earth’s liquid fresh water |
| Aquifer | permeable layer of rock that is saturated with water |
| Erosion | depends on speed of a stream, wind erodes by deflation and abrasion |
| Ocean | as depth increases pressure increases, light decreases, and temperature decreases |
| Sedimentary rock | compared with radioactive isotopes, fossils, and relative dating |
| Air | 78% nitrogen |
| Altitude | increase causes decrease in pressure and density |
| Zones of the Earth | North to south polar, temperate, tropic, temperate, polar |
| Atmosphere | heated by reradiated energy |
| Weather symbols | warm front (rounded), cold front (triangles) |
| Ice age | naturally occurring long term climate change |
| Global warming | climate changed affected by human activities |
| Displacement | difference between starting point and ending point |
| Speed | distance divided by time |
| Distance time graph | slope represents speed, horizontal line represents rest |
| Acceleration | change in speed or direction, caused by unbalanced forces |
| Balanced forces | no change in motion |
| Friction | opposes motion, increase efficiency by reducing friction |
| Fluid | friction from liquid or gases |
| Sliding | example, pushing one solid on another solid |
| Falling object | gravity and air resistance |
| Projectile motion | objects fall at the same speed regardless of path |
| Inertia | resists change in motion |
| Action reaction forces | every action has an equal and opposite reaction |
| Magnetic poles | opposites attract |
| Weight | decreases as gravity decreases |
| Pressure | force divided by area |
| Fluid pressure | increases as depth increases |
| Fluids | liquids and gases, gases can be compressed, liquids can not |
| Atmospheric pressure | weight of atmosphere above a location |
| Hydraulics | operates because of Pascal’s Principle |
| Lift | upward force on a wing, air across top of wing is moving faster than air below wing |
| Buoyant force | while floating buoyant force equals weight |
| Density | object floats in water if density is less than 1 g/ml |
| Work | force and motion in direction of the force |
| Power | to increase power increase work in a period of time or do same amount of work in less time |
| Machine | multiplies force, makes work easier by changing direction of force |
| Actual Mechanical Advantage | Output force divided by input force |
| Wedge | axe |
| Energy | transferred by a force moving an object through a distance |
| Kinetic energy | energy of motion, pendulum diagram |
| Thermal energy | increases as temperature increases |
| Chemical energy | gasoline, converted into mechanical during motion |
| Law of conservation of energy | energy can not be created nor destroyed, but it can change form |
| Nonrenewable resources | fossil fuels, uranium |
| Fossil fuels | relatively inexpensive and available |
| Mass transportation | bus, streetcar, train, airplanes |
Created by:
evroman
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