Have you tried our new HTML5 version of Balloons and Static Electricity?
Why does a balloon stick to your sweater? Rub a balloon on a sweater, then let go of the balloon and it flies over and sticks to the sweater. View the charges in the sweater, balloons, and the wall.
Have you tried PhET’s HTML5 version of Beer’s Law Lab?
“The thicker the glass, the darker the brew, the less the light that passes through.” Make colorful concentrated and dilute solutions and explore how much light they absorb and transmit using a virtual spectrophotometer!
Don’t forget to visit the Java version to find the activities and description. And, to our US PhET users, have a safe and happy Labor Day weekend!
Try the new next-gen version of our popular Gravity Force Lab — now for touch and tablets! With a touch of your finger, experience how the gravitational force that two objects exert on each other changes as you alter their properties. What happens as you increase the mass of the objects? What happens as you move them farther apart?
