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# Didactalia: material educativo > Brightstorm

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Hipervinculo Matemàtiques

## Writing an Equation

"If a student learns about writing an equation to describe a picture or a pattern, it will help him or her understand how graphs and equations work and how they apply to the real world. Writing an equ ...

Video Matemàtiques

## Work Word Problems

"It is possible to solve word problems when two people are doing a work job together by solving systems of equations. To solve a work word problem, multiply the hourly rate of the two people working t ...

Hipervinculo Física

## Work - Energy Theorem

"According to the work-energy theorem, the net work on an object causes a change in the kinetic energy of the object. The formula for net work is net work = change in kinetic energy = final kinetic en ...

Video Matemàtiques

## Why SSA and AAA Don't Work as Congruence Shortcuts

"Four shortcuts allow students to know two triangles must be congruent: SSS, SAS, ASA, and AAS. Knowing only side-side-angle (SSA) does not work because the unknown side could be located in two differ ...

Video Física

## Wavelength

"Wavelength is the distance between two crests of a wave. It is related to frequency and period by the equations wave speed = frequency x wavelength and wave speed = wavelength / period." Fuente: Brig ...

Hipervinculo Física

## Wave Intensity (BrightStorm)

"Wave intensity is the average power that travels through a given area as the wave travels through space. The intensity of sound waves is measured using the decibel scale." Fu ...

Video Física

## Wave Speed

"Wave speed is the speed at which a wave travels. Wave speed is related to wavelength, frequency, and period by the equation wave speed = frequency x wavelength. The most commonly used wave speed is t ...

Video Física

## Wave Phase

"Wave phase is the offset of a wave from a given point. When two waves cross paths, they either cancel each other out or compliment each other, depending on their phase. These effects are called const ...

Video Física

## Wave Inversion

"Wave inversion occurs when a traveling wave is flipped upside down when being reflected back into the old medium. This happens during the process of a wave moving through one medium encounters a boun ...

Hipervinculo Física

## Wave Interference

"Wave interference is the result of the interactions of multiple waves. Types of interference include constructive and destructive interferences. The difference between the two is the relative displac ...

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