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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 |