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Science
Term | Definition |
---|---|
Force | Push or Pull |
Newton | The SI unit for the magnitude, or strength, of a force |
Net Force | The combination of all forces acting on an object |
Unbalanced Forces-Force | Forces that cause an object's velocity to change |
Balanced Forces-Equal forces acting on one object in opposite directions | |
Friction-A force that two surfaces exert on each other when they rub against each other. | |
Static Friction-The friction that acts on objects that aren’t moving | |
Sliding Friction-Occurs when two solid surfaces slide over each other | |
Rolling Friction-When an object rolls across a surface | |
Fluid Friction-Occurs when a solid objects moves through a fluid | |
Gravity-A force that pulls objects towards each other | |
Mass-The measure of the amount of matter in an object | |
Weight-The gravitational force exerted on a person or object at the surface of a planet | |
Free Fall-When the only force acting on an object is gravity | |
Air Resistance-Acts on objects falling through the air | |
Projectile-An object that is thrown | |
Compression-An elastic force that squeezes or pushes matter together | |
Tension-An elastic force that stretches or pulls matter |