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24 Cards in this Set
- Front
- Back
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Weight |
measure of the force of gravity on you |
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Mass |
the measurement of the amount of matter in an object. |
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How are weight and mass different? |
Unlike weight, mass does not change with location, even when the force of gravity on an object changes.
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International System of Units |
The system of units (SI) used by scientists to measure the properties of matter. |
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Volume |
The amount of space that matter occupies |
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Units of Volume |
liter (L), milliliter (mL), cubic centimeter (cm3) |
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Calculating Volume |
Volume = Length X Width X Height |
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Density |
= Mass / Volume |
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Physical Change |
Any change that alters the form or appearance of matter but does not make any substance in the matter into a different substance. |
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Chemical Change |
A change in matter that produces one or more new substances. |
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Law of conservation of Mass |
The fact that matters not created or destroyed in any chemical or physical change. |
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Energy |
The ability to do work or cause change. |
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Temperature |
A measure of the average energy of random motion of particles of matter |
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Thermal Energy |
The total energy of all of the particles in an object |
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Endothermic change |
change in which energy is taken in |
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Exothermic change |
Changes in matter in which energy is given off. It releases energy. |
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Forms of Energy related to changes in matter... |
kinetic, potential, chemical, electromagnetic, electrical, and thermal energy |
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Kinetic energy |
Energy of matter in motion |
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Potential energy |
Energy an object has because of its position |
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Chemical energy |
The internal energy stored in the chemical bonds between atoms is a form of potential energy |
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Electromagnetic Energy |
A form of energy that travels through space as waves. |
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Examples of Electromagnetic Energy |
Radio waves, infrared "rays" from heat lamps, X-rays, the waves that heat food in a microwave, ultraviolet rays |
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Electrical Energy |
The energy of electrically charged particles moving from one place to another |
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Electrodes |
A metal strip that conducts electricity |
