| Question |
Answer |
| force |
is a push or a pull that acts on an object. |
| net force |
is the overall force acting on an object after all the forces are combined |
| newton |
is the force that causes a 1-kilogram mass to accelerate at a rate of 1 meter per second each second (1 m/s2). |
| balanced force |
the net force is zero and there is no change in the objects motion |
| friction |
force that opposes the motion of an object that touch as they move past each other |
| static friction |
the friction force that acts on objects that are not moving |
| sliding friction |
a force that opposes the direction of motion of an object as it slides over a surface |
| rolling friction |
a friction force that acts on rolling objects |
| fluid friction |
the motion of an object through a fluid |
| air resistance |
fluid friction acting on an object moving through the air |
| gravity |
the force that acts between any two masses |
| terminal velocity |
the constant velocity of a falling object when the force of air resistance equals the force of gravity |
| projectile motion |
the motion of a falling object after it is given an initial forward velocity |
| inertia |
the tendency of an object to resist change in its motion |
| mass |
the measure of the inertia of an object depends on the amount of matter an object contains |
| acceleration |
net force /mass |
| weight |
the force of gravity acting on an object |
| "Weight Equals" |
mass x acceleration due to gravity |
| momentum |
the product of an objects mass and its velocity |
| momentum formula |
mass x velocity |
| law of conservation of momentum |
no net force acts on a system than the total momentum of the system does not change |
| electromagnetic force |
associtated with charged particles |
| strong nuclear force |
a powerful force of attraction that acts only on the neutons and protons in the nucleus, holding them together |
| weak nuclear force |
an attraction force that only acts over a short range |
| gravitational force |
an attraction force that acts between any two masses |
| centripetal force |
a center directed force that continuously changes the direction of an object to make it move in a circe |
Science Vocab 147928
