You may need to download the latest version of the 
Modelling projectiles
GlossaryA
The rate of change of velocity.
A Slowing force between an object and the air it moves through.
General expression of mathematics using letters to represent variables and constants.
In the form of algebra.
Angle that the initial velocity makes with the horizontal.
B
C
Cartesian equations are named after Rene Descartes, who suggested the method of identifying a point in space in terms of its x,y,z coordinates.
Of a size similar or comparable to the reference.
D
E
G
Expressed generally, without specific values.
Spinning wheel which resists changes in orientation.
H
A change in position in the plane of the horizon.
A change in horizontal displacement.
I
The point at which an object lands.
Decreases as the reference increases.
J
K
M
N
O
P
The form of a graph in which the vertical increment changes as the square of the horizontal increment.
Having the shape of a parabola.
A path which follows a parabola.
Input variable or constant.
Of parameters.
A flat surface, points in space corresponding to a flat surface.
Mathematical simplification in which all the mass of a body is considered to be at a single point.
An object falling under gravity.
Increases as the reference increases.
A pushing force.
Q
S
U
V
Changeable inputs.
Plural of velocity.
Rate of change of an object's position.
A change in position in a plane at right angles to the horizon.
A change in vertical displacement.
W
X
Y
Z
1