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27 Cards in this Set
- Front
- Back
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To a Scientist,_______ is the ability to do work or change matter
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Energy
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A Scientist measures energy by measuring the amount of ____ done
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Work
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The ____ is the unit of measurement for energy and work
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Joule
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The ____ is the unit of measurement for power.
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Watt
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What do scientists call stored energy?
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Potential
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What do sceintists call energy of motion?
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Kinetic
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What kind of energy does a roller coaster car have when it sits motionless on the top of a hill?
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Potential
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What kind of energy does a roller coaster car have when it is pushed down?
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Kinetic
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What kind of energy does a spring have when it is pushed down?
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Potenial
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What happens to energy when the spring is released from bieing pushed down?
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Kinetic energy is realeased
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A _____ ______ is a strong attraction that holds two atoms together in a subtance
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Chemical Bond
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A ___ is the smallest bit of water that has all the properties of water.
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Molecule
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Energy stored in a chemical bond is call ___ energy
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Chemical
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Is the energy stored in chemical bonds potential or kinetic?
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Potential
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What do many chemical reactions give off that can be harnessed to do useful work.
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Energy
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Burning occurs when a subtance reacts with ___.
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Oxegon
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What does the equation Carbon+Oxegon=Carbon Dixode mean in words.
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Carbon racts with oxegon to make carbon gas
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What happens to mass and energy during a chemical reaction?
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They change Form
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What happens to electrical energy when you turn on a lamp?
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It Turns Light Energy and then to Thermal Energy
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What happens to electrical energy when you turn on a cieling fan?
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It Turns to mechanical energy.
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During a chemical reaction ,_____changes form
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Energy
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What is stored energy?
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Potential
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What is kinectic energy?
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Energy of Motion
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The rate at which work is done is ____
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Power
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_____ holds energy that origanilly came from sunlight
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Petroleum
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2 or more atoms that still has properties of a subatnce are ___
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molecules
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When carbon burns ___ is given off.
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Carbon dioxide
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