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Physics Measuring & Notation

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Metric System Unit Prefixes

For building circuits or other electronics, a system of prefixes is used to make managing and reading metric easier. Use this chart to learn the metric prefix, its symbol, and the decimal value. [more…]

Systems of Measurement in Physics

To keep like measurements together, physicists and mathematicians have grouped them into measurement systems. The most common measurement system you see in introductory physics is the meter-kilogram-second [more…]

Calculating the Density of an Object

In physics, density is the ratio of mass to volume. Any solid object that’s less dense than water floats. Density is an important property of a fluid because mass is continuously distributed throughout [more…]

How to Calculate Force Based on Pressure

Pressure and force are related, and so you can calculate one if you know the other by using the physics equation, F = P/A. Because pressure is force divided by area, its meter-kilogram-second [more…]

Streamlines Indicate Liquid Flow

In physics, a handy way of visualizing the flow of a fluid is through streamlines. You draw a fluid’s streamline so that a tangent to the streamline at any point is parallel to the fluid’s velocity at [more…]

How to Calculate the Specific Gravity of a Substance

In physics, a substance’s specific gravity is the ratio of that substance’s density to the density of water at 4 degrees Celsius. Because the density of water at 4 degrees Celsius is 1,000 kg/m [more…]

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