Why can sound not travel through a vacuum?

Newton's Second Law of Motion is defined as Force = Mass * Acceleration, with mass being the total amount of matter present in an object and acceleration being the rate that velocity changes. This lesson examines the differences between a small sports car and a large SUV and how much force is needed to move each.

Learn about the photoelectric effect. See the photoelectric effect definition and equation, learn who discovered the photoelectric effect, and view its applications.

Sound is expressed with different measures of pitch, loudness, and other qualities to compose the timbre, which is the overall quality of the sound. See how different sounds are differentiated by examining noise, loudness, pitch, and overtones.

Find out the definition of the Doppler effect and what it is in everyday terms. Discover what causes the Doppler effect and see some examples of the Doppler effect.

Learn what kinetic energy is and identify types of kinetic energy. Discover the equation for calculating the energy of motion and examine kinetic energy examples.

Newton's third law of motion describes the behavior of an object when reacting to an applied force. Learn about Newton's third law of motion and its assertion that for every action there is an equal and opposite reaction, and understand the concept of the normal force.

Learn what diffraction is. Explore diffraction of light and diffraction of sound. See when diffraction of waves occurs and the effects of wavelength on diffraction.

Standing waves are a result of wave interference. Explore the lesson to learn about the properties of standing waves, find their formulas, and see some examples.

Learn the definition of electric charge. Discover how the accumulation of electric charges on an object happens. Read about electrical attraction and repulsion.

Learn what a transverse wave is. Discover the difference between transverse vs. longitudinal waves, examine parts of waves, and study transverse wave examples.

Learn to define what thermal expansion means. Discover the thermal expansion equation and the coefficient of thermal expansion. See thermal expansion examples.

Explore what infrasound is. Learn the definition of infrasound and find its important uses. Discover infrasound frequency and understand its different effects.

Understand what electric potential energy is and discover the electric potential energy formula. Learn electric potential energy units and various examples.

See the heat capacity definition and symbol. View examples to learn how to use the heat capacity formula to calculate the heat capacity of a substance.

Learn how to find the speed of a wave. Understand what wave speed is and what is the formula is for wave speed. Discover more about the wave equation.

Learn the difference between asteroid vs. meteor vs. comet. Discover the characteristics of asteroids, meteors, and comets, as well as how to differentiate between these three space objects.