Physics Project Ideas

Bouncing Balls: Why Is the Rebound Rating < 1? *
This implies that not all of the potential energy is converted to the kinetic energy of the bounce. But conservation of energy requires that the energy must be the same before and after the ball is dropped? Where does the energy go? Bounce a ball 100 times, then hold it in your hand. In your other hand hold a ball that wasn't bounced. What is the difference? (See: Goodstein, 1999, pp. 22–23.) Read more

Distance and Speed of Rolling Objects Measured from Video Recordings
This project is an experiment in classical physics. You'll be following in Galileo's footsteps, and investigating Newton's laws of motion, but you'll be taking advantage of modern video recording technology to make your measurements. Sure, it's been done before, but if you do it yourself, you can get a firm understanding of these important concepts. Read more

Frequency-Dependent Sound Absorption
Want to start a garage band, but Mom or Dad won't let you because it will make too much noise? This is a good project for someone who is interested in acoustics and likes to build things. Who knows, it might help you figure out how to make everyone happy. Read more

Golf Clubs, Loft Angle, and Distance: The Science of Hitting *
Use a video camera to analyze the angle of lift with different clubs. Measure the distance the ball travels. Be sure to conduct a sufficient number of trials with each club so that your results are consistent. This can also be a great way to work on your swing! (Idea from Goodstein, 1999, pp. 83–85.) Read more

Investigating the 'Mpemba Effect': Can Hot Water Freeze Faster than Cold Water?
This physics project seems like it should have an easy answer. Instead, it turns out to be a great illustration of why it is important to base scientific conclusions on the outcome of controlled experiments. Things don't always turn out as we expect! Read more