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Learn about the concept of power in physics, including how to calculate average and instantaneous power.
Explanation of power in physics, including concepts and calculations.
Build an intuitive understanding of current and voltage, and power. Voltage and current are the cornerstone concepts in electricity. We will create our first mental models for these basic electrical quantities.
"Energy" is a word that's used a lot. Here, you'll learn about how it's one of the most useful concepts in physics. Along the way, we'll talk about work, kinetic energy, potential energy, and conservation of energy.
Power however, can be calculated from torque if the rotational speed is known. In fact, the horsepower of an engine is not typically measured directly, but calculated from measured torque and rotational speed.
Review the key concepts and equations for power, including the difference between power and energy.
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High school physics. NEW. Hands-on science activities. NEW. AP®︎/College Biology; AP®︎/College Chemistry; AP®︎/College Environmental Science; AP®︎/College Physics 1; See all Science; Computing; Intro to CS - Python. NEW. Computer programming; AP®︎/College Computer Science Principles; Pixar in a Box;
Let's dive into the power rule, a handy tool for finding the derivative of xⁿ. This rule simplifies the process of taking derivatives, especially for polynomials, by bringing the exponent out front and decrementing the power. We explore examples with positive, negative, and fractional exponents.
Let's solve some numerical on electric power and heat dissipated. Skip to main content If you're seeing this message, it means we're having trouble loading external resources on our website.