click below
click below
Normal Size Small Size show me how
Force and Motion
Unit 2 8th Science 2024
Term | Definition |
---|---|
Net Force | The sum of all the forces acting on an object |
Newtons | The unit used to measure force |
Balanced Forces | Forces of an object that do not change the motion of the object |
Unbalanced Forces | Forces on an object that cause change in the motion of the object |
Newton's 1st Law | An object at rest stays at rest, or an object in motion stays in motion until balanced forces act upon it |
Newton's 2nd Law | Acceleration of an object depends on the object's mass and magnitude of the force acting upon it (F=ma) |
Newton's 3rd Law | Newton's law state that for every action there is an equal and opposite reaction |
Inertia | The tendency of a physical object to remain still or continue moving, unless force is applied |
Mass | The amount of matter an object contains, measured in grams |
Acceleration | Change of an object's speed or direction; Measures how an object changes velocity-moving faster, slower, or continues to move at the same rate |
Average Speed | The measurement of the rate of change of position with respect to time (s=d/t) |
distance time graph | a graph that shows how fat an object travels in a given amount of time |
force diagram | a diagram with vector signs that is used to determine net force |
friction | forces that resist the motion of an object |
gravity | the force of attraction between two objects |
law of conservation of mass | matter cannot be created nor destroyed. the mass of the reactants must equal the mass of the products. |