 mass
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| (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.
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| weight
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| The force on an object due to the gravitational attraction between it and (typically) the Earth.
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| displacement
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| (physics) A vector quantity which denotes distance with a directional component.
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 force
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| 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.
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| free body diagram
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| 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 non-contact 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.
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| equilibrium
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| (physics) The state of a body at rest or in uniform motion in which the resultant of all forces on it is zero.
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| slope
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- (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.
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click and drag
click and drag
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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.
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