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32 Cards in this Set
- Front
- Back
boiling |
when vaporization happens so fast that liquid forms bubbles that rise through the liquid. |
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sublimation |
occurs when a solid substance turns directly into a vapor without becoming a liquid first. |
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mass |
the quantity of matter |
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weight |
the gravitational attraction for an objects mass.
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volume |
the space an object occupies |
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force |
a push or pull |
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types of forces? |
field force and contact force |
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field force |
act on objects separated by distance |
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contact force |
when objects touch each other |
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magnetic force |
exerted between magnets and magnetic materials, such as metal. |
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electric force |
exerted between electrical charges |
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gravity |
exerted by matter on other matter. Gives things weight |
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energy |
the ability to do work. The force that acts on a object as it moves through a distance. |
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kinetic energy |
a moving object- an objects kinetic energy depends much more on its speed than its mass |
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potential energy |
when a force gives an object the potential to move. Depends on its mass and the distance it could fall |
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thermal energy |
all objects have thermal energy which contains tiny particles in constant random motion |
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sound energy |
produces by particles motion. When particles in matter vibrate repeatably back-and-forth in one direction. |
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audible |
sound waves heard with the unaided ear |
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Ultrasonic sound |
sound vibrations that are too fast to hear |
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infrasonic sound |
vibrations to slow to hear (earthquake waves) |
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electrical energy |
the ability to do work with electrical charges |
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magnetic energy |
results from the motion of electrical charges. Work on magnetic material such as iron |
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chemical energy |
particles in matter that form connections to each other |
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light energy |
everything that gives off light |
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nuclear energy |
when an atom is split, releasing nuclear energy |
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conservation of energy |
energy never lost. It changes into other types of energy. |
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First law of thermodynamics |
energy can not be created or destroyed, but can only be changed from one form to another |
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atoms |
the smallest building block of matter |
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ions |
atoms with more or fewer electrons than protons |
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chemical element |
a pure substance made of one kind of atom |
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compound |
atoms from one element that bond with atoms from other elements. |
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molecules |
distinct particles formed by the combination of two or more atoms. |