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20 Cards in this Set
- Front
- Back
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What is friction?
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A force that creates heat and opposes motion.
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What does the strength of a force depend on?
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It depends on how hard you push or pull and object.
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What is Newton's 1st law of motion?
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Objects at rest stay at rest; objects in motion stay in motion.
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What is Newton's second law of motion?
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Force is equal to mass times acceleration. (F=MxA.)
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What is Newton's third law of motion?
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For every action, there is an opposite and equal reaction.
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What is Potential Energy?
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Potential energy is stored energy due to position or condition.
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What is Kinetic Energy?
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Kinetic energy is moving energy or energy in motion.
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Where do conduction and convection occur?
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Conduction mainly occurs in solids, while, convection occurs in liquids and gases.
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Where is most of the Earth's fresh water stored?
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Most of the Earth's fresh water is stored in glaciers.
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What is the "Law of Conservation of Energy"?
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The "Law of Conservation of Energy" states that energy can be changed from one form to another.
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What do convection currents cause and where are they found?
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Convection currents are found in the Earth's mantle and cause seafloor spreading, earthquakes, and volcanoes.
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What is Plate Tectonics?
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Plate Tectonics is the movement of the Earth's crust because of convection.
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How are earthquakes caused?
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Earthquakes are caused by the movement of plates along a fault.
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What is the main energy source for the Earth?
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The sun's radiation is the main energy source for the Earth. (plants, water, life)
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What objects will float in water?
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Objects that are less dense will float in water. Anything more dense than 1.0 g/mL will sink.
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Fill in the blank: The higher an object is, the more ________________ an object has.
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Potential Energy
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The same substance always has the same _______ no matter how much of it you have.
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density
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Earthquakes and volcanoes are found on ________________.
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plate boundaries
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As ___________ increases, density decreases.
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temperature
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Water expands when it freezes, causing ___________________ (cracks in rocks).
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physical weathering
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