## CATEGORIES

• Category: Medicine

A chemical released by the body. The brain tells the body to use this chemical usually in scary or risky situations. It makes the body work harder, better, faster and stronger.

• Category: Mathematics

The top number of a fraction.

• Category: Mathematics

A set of fractions to the left of zero on a number line.

• Category: Mathematics

A number that is less than zero.

• Category: Physics

All

• Category: Physics

In a vacuum, something that is moving will continue to move. Something that is not moving, will continue to not move.

• Category: Physics

Heavy stuff needs more force to move the same distance as something lighter. (Force = Mass x Acceleration)

• Category: Physics

For every action there is an equal and opposite re-action. When an object pushes another object, it gets pushed back in the opposite direction EQUALLY hard.

• Category: Differential Equations

When the INDEPENDENT VARIABLES (usually X or Y) of a differential equation have different exponents than the other independent variables in the differential equation. Also, when the independent variable is affected by a trig function.

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