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science vocab words
Term | Definition |
---|---|
Acceleration | the rate at which velocity changes |
Air Resistance | the fluid frition experienced by objects falling through air |
Balanced Forces | equal forces acting on an object in oppisite directions |
Friction | the force that one surface exerts on another when the two surfaces rub againest each other |
Force | a push or a pull |
Mass | the amount of matter in an object |
velocity | speed in a givin direction |
Efficiency | the percentage of the input work that is converted to output work |
Pascal | a unit of pressure equal to 1 newton per square meter |
Speed | the distance an object travels per unit of time |
Static Friction | friction that acts on objects that are not moving |
Newton | a unit of measure that equals the force required to accelerate 1 kiliogram of mass at 1 meter per second |
Power | the rate at which work is done |
Pulley | a simple machine that consists of a grooved wheel with a rope or cabel wrapped around it |
Mechanical Advantage | the number of times a machine increases a force exerted on it |
Net Force | the overall force on an odject when all the individual foces actting on it are adding together |
Work | force exerted on an object that causes it to move |