K0910 Physics P04 Force and Motion
With audio from Mr D :)
Terms in this set (21)
change in velocity / time, V1-V0 / t or ΔV/t Unit = m/s²
distance / time, d/t. Unit = m/s
A net inward force exerted on a body in circular motion
movement in the shape of a circle or ring
a negative acceleration
the shortest distance from the initial to the final position of something
Gradient of this graph = speed (velocity) =y/x - distance m / time s
mass x acceleration. F=ma. Unit= N. A dynamic influence that changes a body from a state of rest to one of motion or changes its rate of motion.
the acceleration for any object moving under the sole influence of gravity
an attractive force between particles with mass
a physical quantity expressing the amount of matter in a body
a graph which represents the motion of an object
the SI unit of force, equal to the force that produces an acceleration of one meter per second per second on a mass of one kilogram. (1kg/m/s² =1N)
Newton's First Law of Motion
A body remains at rest or in motion with a constant velocity unless acted upon by an external force.
the path followed by an object revolving around another object
a scalar measure of the rate of movement of a body expressed either as the distance travelled divided by the time taken ( average ______) or the rate of change of position with respect to time at a particular point ( instantaneous _____ ). (m/s)
Gradient of this graph is numerically equal to the acceleration. In this graph the area under the line is numerically equal to the distance travelled.
the velocity at which a falling body moves through a medium, as air, when the force of resistance of the medium is equal in magnitude and opposite in direction to the force of gravity.
ratio of change of position to time interval over which change takes place m/s 90° (=East) - a vector quantity
mass x gravitational acceleration. W=mg. Unit= N.
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