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kassidy vocabulary
1st semester vocabulary for science
Question | Answer |
---|---|
what does a beaker do? | A beaker holds liquids and for ballmark estimates. |
What is the eye dropers purpose? | The eye dropper's purpose is to drop small amounts of liguid. |
What does a microscope do? | A microscope magnifies microscopic objects. |
What is the rulers purpose? | The ruler's purpose is to measure the lenghth of objects. |
What does a triple beam balance do? | A triple beam balence measures the mass of an object. |
What is an atom? | A atom is the smallest particle into which an element can divided and still have the properties of an element. |
What are elements? | Elements are the building blocks of all matter. |
What is a nucleus? | The nucleus is the center of an atom. |
What is a atomic number? | Atomic number is the number of protons in the nucleus of an atom of a given element. |
What is atomic mass? | Atomic mass is the mass of an atom expressed in atomic mass units. It is the number of protons and neutrons in a atom |
What is Newton's first law? | Newton's first law states that a object at rest will stay at rest, and a object in motion will stay in motion untill acted on by a unbalenced force. |
What is Newton's second law? | Newton's second law states that the acceleration of an object depends on the mass of the object and the amount of force applied to it. |
What is Newton's third law? | Newton's third law states for every action there as a equal and opposite reaction. |
What is a force? | A force is a push or a pull. |
What is gravity? | Gravity is a force of attraction between objects that have mass. |
What is a HR diagram? | A HR diagram is a chart that shows the relationship of a star's tempurture and its absolute magnitude. |
What is a main sequence star? | A main sequence star is a newly foarmed star, the heat from the fusion causes the pressure that balances the attraction due to gravity. |
What is a elliptical galaxy? | A elliptical galaxy is a spherical group of stars that are normally old and don't consist of a lot of dust and gas |
What is a irregular galaxy? | A irregular galaxy is a group of stars with no real shape. |
What is a spirial galaxy? | A spirial galaxy is a group of stars that have spiral arms that wind out from the center of the galaxy. |