Use this electromagnetic spectrum explorer to slide from radio waves to gamma rays. Watch wavelength, frequency, photon energy, examples, uses, and safety ideas update in real time. How to use the electromagnetic spectrum explorer 1 Drag across the spectrum Move the slider from radio waves to gamma rays. The selected wave type changes on the … Read more
Use this moon phases learning tool to see why the Moon appears to change shape during a lunar month. Drag the Moon around Earth and compare New Moon, waxing crescent, First Quarter, waxing gibbous, Full Moon, waning gibbous, Last Quarter, and waning crescent. How to use the moon phases learning tool 1 Drag the Moon … Read more
Use this potential and kinetic energy simulator to move a ball down a smooth slope. Watch height, speed, potential energy, kinetic energy, and total energy change together. How to use the potential and kinetic energy simulator 1 Move the ball Use the position slider to move the ball from the top of the slope to … Read more
Use this simple pendulum simulator to explore how string length, bob mass, starting angle, gravity, and damping affect a swinging pendulum. Watch the animation, compare energy changes, and study the angle versus time graph. How to use the simple pendulum simulator 1 Set the string length Move the length slider and watch how the period … Read more
Use this projectile motion calculator to explore how launch speed, launch angle, starting height, and gravity affect the path of an object. The interactive diagram shows the trajectory, range, time of flight, maximum height, and velocity components. How to use the projectile motion tool 1 Set the launch speed Choose the initial speed v0. A … Read more
Use this interactive seasons simulator to learn why seasons change. Drag Earth around the Sun, adjust the axial tilt, spin the globe, and compare solstices, equinoxes, sunlight angle, and day length. How to use the interactive seasons simulator 1 Drag Earth Move Earth around the Sun or use the orbit slider. Watch the axis stay … Read more
Use this thermal expansion visualizer to heat and cool different materials, compare real length changes, and discover why small expansions matter in bridges, rails, glass, and metal strips. How to use the thermal expansion visualizer 1 Choose a material Pick aluminum, brass, copper, steel, glass, concrete, or invar. Each one has a different expansion coefficient. … Read more
Use this daily calories estimator to learn how much energy you need daily. Young learners can compare broad kcal ranges and adult EER calculations while exploring how activity level and body measurements affect an estimate. How to use the daily calories estimator 1 Choose a mode Use basic learner mode for broad age-group ranges or … Read more
Use this equations of motion calculator to find missing velocity, acceleration, time, or displacement values for straight-line motion with constant acceleration. How to use the equations of motion calculator 1 Choose a positive direction Decide which direction is positive. Enter velocity, acceleration, and displacement in the opposite direction as negative values. 2 Enter three values … Read more
Use this interactive echo simulator to change the distance to a wall, air temperature, and reflecting surface, then observe the outgoing sound and its returning reflection. How to use the echo simulator 1 Choose the distance Move the distance slider to place the reflecting wall from 1 to 100 metres away. 2 Set the air … Read more