Tag: physics

Learn about the different frequency ranges of sound waves: audible sounds (20 Hz to 20,000 Hz that humans can hear), infrasonic sounds (below 20 Hz), and ultrasonic sounds (above 20,000 Hz).

thermal equilibrium

standing waves

compressive and tensile forces

interference of two waves

damped oscillation

surface energy of a liquid

energy conservation

Learn about the greenhouse effect, greenhouse gases, their properties, sources, and environmental impacts for Class-IX science.

Learn about the properties of solids, liquids, and gases, including particle motion, intermolecular forces, diffusion, density, and phase transitions.