Paper 2 phyciscs
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10 Terms
What is a scalar quantity?
A quantity which has magnitude but no direction
What is a vector quantity?
A quantity which has magnitude and direction
Example of scalar quantity
(Stamped DT)
Speed
Time
A(filler)
Mass
Power
Energy
Distance
Density
Temperature
Examples of Vector quantity
VAMFWD
Velocity
Acceleration
Momentum
Force
Weight
Displacement
Terminal velocity
When an object falls through a liquid
When this happens, drag and speed will go from increasing, to staying the same and acceleration will go from decreasing to zero.
Inertial mass
How difficult it is to change the velocity of an object
What happens when two or more forces are applied to an object
Deformation (when an object changes shape.)
When elastic (changes back to original shape) work done is converted to elastic potential energy.
When inelastic (does not change back to original shape) work done is wasted as heat to the surroundings.
