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Physics Science Projects (77 results)

Physics is the study of matter — what is it made of? How does it behave? What laws or equations describe it? From subatomic particles, to the Big Bang, modern physicists study matter at a tremendous range of scales. There's a whole lot of interesting physics at the human scale, too. If physics interests you our wide collection of physics projects is sure to have an experiment that excites you.

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Science Buddies Original
Science Fair Project Idea
Radiometers are fun-to-watch novelty items, but they also have a distinguished scientific history, having been studied by James Clerk Maxwell and Albert Einstein. A radiometer has a set of four vanes (like small sails) connected to a spindle that is free to rotate. When the radiometer is placed in bright light, the vanes and spindle start to spin. It looks like a magic trick, but there is a scientific explanation for this weird behavior. In this science fair project, you will experiment with… Read more
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Time Required Average (6-10 days)
Tinkering
Prerequisites This science fair project will require some creative problem solving on your part.
Material Availability You will need to order a digital tachometer and radiometer online. See the Materials and Equipment list for details.
Cost High ($100 - $150)
Safety No issues
Science Buddies Original
Science Fair Project Idea
Have you ever dropped something and wondered how fast it was moving while falling? If it was something fragile, like a cell phone, you might not have been thinking about this at the time — you may have been too busy trying to grab the phone! But you probably wanted to find out just how hard it hit the ground afterwards. We know that gravity forces an object to fall, but how does this affect how quickly something falls and how hard it hits the ground? For example, did the phone move faster… Read more
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- Less Details
Time Required Short (2-5 days)
Tinkering
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety No issues
Science Buddies Original
Science Fair Project Idea
Why is it more comfortable to wear light-colored clothes on a hot summer day? Why wear a dark-colored jacket for early-morning fishing on a cold lake? How much difference can it make? Here's a project where you can quantify how much difference color makes for absorbing heat. Read more
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- Less Details
Time Required Average (6-10 days)
Tinkering
Prerequisites None
Material Availability Readily available
Cost Low ($20 - $50)
Safety Adult supervision required for drilling jar lids.
Science Buddies Original
Science Fair Project Idea
Eardrums are membranes inside your ears that vibrate when sound waves hit them. These vibrations are converted into electrical signals and sent to your brain, which allows you to hear sound. The frequency response of your eardrum, or the range of frequencies that will cause it to vibrate, determines your hearing range. Typical human hearing ranges from about 20 Hz up to 20,000 Hz, although the ability to hear high frequencies typically degrades as you get older. Some other animals can… Read more
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Time Required Short (2-5 days)
Tinkering
Prerequisites
Material Availability
Cost
Safety
Science Buddies Original
Science Fair Project Idea
Sometimes, simple toys can be quite complicated. Take the yo-yo. It's a fun toy and there is nothing simpler than a string wrapped between two connected disks. But there's a lot of physics that makes a yo-yo work. In this science fair project, learn more about how and why a yo-yo works. You will investigate the effect of string length on the yo-yo's "sleep" trick time. If people ask why you've got a yo-yo with you all the time, tell them that while it looks like you're just having fun, you're… Read more
+ More Details
- Less Details
Time Required Average (6-10 days)
Tinkering
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety When practicing with the yo-yo, keep it away from breakable objects. Be aware of where other people are so that nobody gets hit with the yo-yo.
Science Buddies Original
Science Fair Project Idea
If you like listening to music and making crafts, this is a great project for you. You will learn how to make a completely functional speaker that you can use to listen to real music...out of paper! Along the way, you will learn about the science behind how a speaker works. Speakers depend on magnets to create sound—does adding more magnets make the sound louder? Try this project to find out! This project is compatible with Google's Science Journal app, which allows you to collect data… Read more
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- Less Details
Time Required Average (6-10 days)
Tinkering
Prerequisites None.
Material Availability Specialty electronics materials required. See the Materials list for details.
Cost Average ($40 - $80)
Safety No issues.
Science Buddies Original
Science Fair Project Idea
This is a really fun project even if you don't like going on roller coasters yourself. You'll build a roller coaster track for marbles using foam pipe insulation and masking tape, and see how much of an initial drop is required to get the marble to "loop the loop." It's a great way to learn about how stored energy (potential energy) is converted into the energy of motion (kinetic energy). Read more
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- Less Details
Time Required Short (2-5 days)
Tinkering
Prerequisites None
Material Availability Readily available
Cost Very Low (under $20)
Safety Adult supervision recommended when using utility knife
Science Buddies Original
Science Fair Project Idea
Did you know that when you dip your finger in water and pull it out, the water is actually pulling back on you? Here's a way you can measure how much. Read more
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- Less Details
Time Required Very Short (≤ 1 day)
Tinkering
Prerequisites Basic physics: understanding of the concept of a force
Material Availability Readily available
Cost Very Low (under $20)
Safety No issues
Science Buddies Original
Science Fair Project Idea
Rockets are definitively an engineering challenge. These amazing gravity-defying machines have lifted test material, people, and even animals into space. Feel like building one yourself? In this science project, you will transform a water bottle into an aerodynamic bottle rocket with two compartments, one for the fuel and one for a payload. You will then test how well it performs when lifting mass vertically up into the air. Ready, set, soar! Read more
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- Less Details
Time Required Average (6-10 days)
Tinkering
Prerequisites None
Material Availability Readily available
Cost Average ($50 - $100)
Safety Adult supervision is recommended. See the safety note at the beginning of the Procedure.
Science Buddies Original
Science Fair Project Idea
Here is a project that is almost like a magic trick: with a strong magnet and a simple apparatus you can build yourself, you can make a coin "walk" up and down a wire coat hanger! This project is an interesting way to learn about the distance over which magnetic forces act on magnetic materials. Read more
+ More Details
- Less Details
Time Required Short (2-5 days)
Tinkering
Prerequisites None
Material Availability Specialty items
Cost Low ($20 - $50)
Safety Use strong magnets with care! See safety notes below.
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Free science fair projects.