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Physical Science 3
Final Exam
| Term | Definition |
|---|---|
| density | an object that will sink in water if its tiny particles are close together |
| electric | a form of energy that consists of a flow of electric charge through a conductor |
| wavelength | the distance between a point on one wave and the identical point on the next wave |
| pitch | is the highness or lowness of a sound |
| frequency | a measure of the number of waves that pass a point in a second |
| force | a push or pull that causes an object to move or stop or change direction |
| varible | a condition or a factor that changes in an investigation so the effects can be observed |
| air resistance | a force that opposes the motion of an object through the air |
| safety goggles | eyewear that protects against splashes |
| spring scale | an instrument used to measure the pull of gravity on a object |
| Hot plate | an instrument used to heat liquids for scientific experiment |
| grams milligrams kilograms | the unit of measure |
| mirror | a tool used to investigate reflection |
| pulley | is a simple machine made of a rope or chain and a grooved wheel |
| reliability | accuracy of the results |
| Buoyancy | the ability to float |
| solubility | the ability to dissolve in the substance |
| mass | the amount of matter in a substance |
| conduct electricity | the ability to allow electricity to flow through it |
| microscope | that uses a collection of lenses to magnify small objects |