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science vocababulary
Question | Answer |
---|---|
beaker | holds liquids and for ballpark estimates |
eye dropper/pipette | addimg liquids drop by drop |
microscope | magnifies microscopic objects |
ruler | to measure the length of objects |
test tube holder | used to pick up and hold test tubes for a short period of time |
chemical change | when a chemical reaction takes place |
atom | smallest particle in which an element can still be dividded and still have the properties of that element |
proton | postivley charged particle that is in the nucleus |
neutron | particle with no change |
electron | a stable subatomic particle with a negative charge |
balanced force | occurs when the total of all forces on an object equals zero and the objects of motion doesn't change |
unbalanced forces | occurs when the net force on an object that doesn't equal zero |
newton's first law | object at rest will stay at rest unlwss acted on an unbalanced force |
newton's second law | the relationship between force, mass, and acceleration |
newton's third law | for every action, there is an equal but opposite reaction |
speed | didtance travled by an object in a given amount of time |
velocity | an objects speed and direction at a given instant |
acceleration | change in an objects speed or direction over time |
force | a push or a pull |
direction | the path or course an object takes |