Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
forces patelunes
forces vocab
| Vocabulary Word | Definition |
|---|---|
| net force | the sum of all the forces acting upon an object. |
| momentum | The quantity of motion of a moving body, measured as a product of its mass and velocity. |
| formula of momentum | p=mv |
| law of conservation of momentum | the total momentum of any group of objects remains the same unless outside forces also act on the objects. |
| force | push or pull. |
| units of force | forces are measured in newtons |
| Inertia | A property of matter by which it continues in its existing state of rest or uniform motion in a straight line, unless that state is changed by an external force |
| Balanced force | net force acting on an object is zero |
| Unbalanced force | forces that produce a non-zero net force |
| Magnitude | the amount of a measurement. |
| Friction | The resistance that one surface or object encounters when moving over another. |
| static friction | friction between nonmoving objects |
| kinetic friction | friction between moving objects |
| sliding friction | friction between objects that slide |
| rolling Friction | occurs when an object rolls over a surface |
| Fluid Friction | occurs when an object moves through a fluid or a gas |
| Newtons First Law of Motion | In the absence of a net force, an object will continue with its present velocity. If it is at rest, it will stay at rest. If it is moving, it will maintain its velocity |
| Newtons second law of motion | the rate of change of momentum is proportional to the imposed force and goes in the direction of the force |
| Newtons third law of motion | every action force has an equal reaction force |
| Law of universal gravitation | every point mass in the universe attracts every other point mass with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them. |
| free fall | motion of an object when only gravity is acting on it |
| terminal velocity | constant speed that a freely falling object eventually reaches when the resistance of the medium through which it is falling prevents further acceleration |
| weight | The force exerted on the mass of a body by a gravitational field |
| mass | quantity of matter that a body contains |
| centripetal force | force that acts on a body moving in a circular path and is directed toward the center around which the body is moving |
| geosynchronous orbit | occurs when an object orbits another object at a rate equal to the 2nd objects rate of rotation. |
Created by:
c_laco
Popular Science sets