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In this experiment, we use buoyancy to study the balance of two glasses of water.
What is the speed of sound? What happens when an object exceeds the speed of sound?
In this lesson you will learn more about how sound propagates.
How can this pendulum accurately measure time in seconds?
A force can be measured by measuring the twisting of the torsion wire in a torsion balance.
How does a piece of a cork behave on the surface of a glass of water? You can examine that in...
Observe what happens when making sounds with shorter and shorter pieces of the same straw.
This animation demonstrates Sir Isaac Newton's three laws of motion that laid the...