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Term | Definition |
---|---|
outlet | An outlet is a plug in the wall that is not to be pulled by the cord. |
triple beam balance | A triple beam balance measures the mass of an object. |
density | Density is the mass of an object per square unit. |
volume | volume is the amount of space in an object or how much space an object takes up. |
mass | Mass is the property of an object that determines acceleration. |
chemical change | A chemical change is a change that cannot be changed back. |
physical change | A physical change is a change that can be changed back. |
periodic table | A periodic table shows elements such as metals, non-metals and metalloids. |
chemical equation | A chemical equation is a way of describing a chemical change or reaction. |
proton | A proton is a positive charge located in the nucleus of an atom. |
neutron | A neutron is no charge located in the nucleus of an atom. |
electron | An electron is a negative charge located on shells of an atom. |
balanced force | Balanced force occurs when the total of all forces on an object equal zero. |
unbalanced force | An unbalanced force occurs when the total of all forces on an object is more than zero. |
newton's first law | An object at rest will stay at rest until acted upon by another force (inertia). |
newton's second law | The acceleration of an object by a force is inversely proportional to the mass of an object and the force. |
newton's third law | For every action, there is a reaction. |
speed | Speed is how fast an object is moving. |
distance | Distance is the amount of space covered. |
acceleration | Acceleration is an object's velocity over time. |