mass

(physics) The quantity of matter which a body contains, irrespective of its bulk or volume. It is one of four fundamental properties of matter. It is measured in kilograms in the SI system of measurement.


weight

The force on an object due to the gravitational attraction between it and (typically) the Earth.


displacement

(physics) A vector quantity which denotes distance with a directional component.


force

In physics, a force is a push or pull that can cause an object with mass to accelerate. Force has both magnitude and direction, making it a vector quantity.


free body diagram

A free body diagram is a pictorial representation often used by physicists and engineers to analyze the forces acting on a free body. It shows all contact and noncontact forces acting on the body. Drawing such a diagram can aid in solving for the unknown forces or the equations of motion of the body.


equilibrium

(physics) The state of a body at rest or in uniform motion in which the resultant of all forces on it is zero.


slope

 (mathematics) The ratio of the vertical and horizontal distances between two points on a line; zero if the line is horizontal, infinite if it is vertical. The slope of this line is 0.5.
 (mathematics) The slope of the line tangent to a curve at a given point. The slope of a parabola increases linearly with x.


click and drag
click and drag
Navigate the cursor over the object you wish to move. Click and hold the (left) mouse button. Drag the object to the desired location. Release the mouse button.

