Retired HS Physics and Chemistry Teacher. Content Developer at The Physics Classroom website.
Joined August 2010
- Tweets 2,343
- Following 856
- Followers 1,527
- Likes 212
570 Photos and videos
29 Mar 2025
Need a frequency meter for your Sound Waves unit? Here's a free one.
25 Mar 2025
Turn the microphone of your phone, tablet, Chromebook, computer, etc. into an oscilloscope with our Audio Analyzer app. Great tool for quickly determining the frequency of a sound. Cost = $0.
physicsclassroom.com/Physics…
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Tom Henderson retweeted
14 Aug 2024
FREE Motion Detector
Turn your phone, tablet, Chromebook, laptop, or desktop computer into a motion detector. Our new Motion Detector interactive allows classrooms to use any device with a camera and a browser as a motion detector. Game Changer!
physicsclassroom.com/Physics…
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Tom Henderson retweeted
29 Dec 2023
We add a new learning/teaching resource nearly everyday. Don't miss out! Visit ... physicsclassroom.com/Recent-…
... to find out What's New at TPC.
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Tom Henderson retweeted
27 Sep 2023
NEW at The Physics Classroom:
CollisionMania - a simulation involving sliding blocks and swinging pendulum bobs.
staging.physicsclassroom.com…
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13 Aug 2023
Very cool ... on the level of addictive.
12 Aug 2023
Now available at The Physics Classroom: Pace Tracer 1 (pos'n-time graphs) and Pace Tracer 2 (val-time graphs).
Turn the camera of your device into a motion detector and match a graph.
Physics Interactives > 1D Kinematics
#Physics #ITeachPhysics #PhysicsTeachers
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8 Aug 2023
Includes 14 Graphs to match. Students are presented with a Trophy for each successful match.
8 Aug 2023
NEW (and REALLY COOL) at The Physics Classroom:
Pace Tracer 1
Motion detection in the browser for the cost of a sheet of paper. Bring your own phone or tablet.
Try our new graph matching tool at ...
physicsclassroom.com/Physics…
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Tom Henderson retweeted
8 Aug 2023
NEW (and REALLY COOL) at The Physics Classroom:
Pace Tracer 1
Motion detection in the browser for the cost of a sheet of paper. Bring your own phone or tablet.
Try our new graph matching tool at ...
physicsclassroom.com/Physics…
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Tom Henderson retweeted
7 Jul 2023
This is the answer to the question some have in their high school math/physics class, ‘When am I ever going to use this?’ 😂
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Tom Henderson retweeted
8 Jun 2023
Now available - Kepler's Laws of Planetary Motion science reasoning activity.
physicsclassroom.com/reasoni…
An NGSS-inspired activity at The Physics Classroom.
#NGSS #Physics
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Tom Henderson retweeted
27 May 2023
Our newest section - the Science Reasoning Center - is taking shape. We just released our first NGSS-aligned activity titled Slinky Experiments.
physicsclassroom.com/reasoni……
#NGSS #Physics
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27 May 2023
This project has started off like a long blooper reel ... but we're finally making progress. We should have at least 4 activities out this coming week.
24 May 2023
Trophies, Dataway Showers, Progress Tracking, and the usual barrage of critical thinking and analysis ... is coming soon. The Science Reasoning Center is under construction. It should be ready in August of 2023. #NGSS #SciencePractices
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8 Nov 2022
Good physics resources are often free to the end user; but they are not free to the provider. Jon sacrifices loads of time and energy serving the Physics teaching and learning communities. He deserves our support. Support Flipping Physics!
8 Nov 2022
Flipping Physics Needs Your Support!
#Physics #Patreon #PhysicsED
youtube.com/shorts/Br5Gx0vbS…
patreon.com/FlippingPhysics
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31 Oct 2022
Hey Chem Ts: here's a cool set of problems for an Equilibrium unit, with an emphasis on the use of ICE tables. Nothing shifty about this. Check them out at ...
physicsclassroom.com/calcpad…
#iteachchem
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11 Oct 2022
Great tool. Great price.
11 Oct 2022
Hey Chemistry Teacher. We just finished our 6th Chemistry unit for The Calculator Pad. It's a pretty slick tool. There's likely something here for you. Check it out for Free at: physicsclassroom.com/calcpad
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Tom Henderson retweeted
28 Sep 2022
Hey Chemistry T's. Check out our growing collection of Chemistry Problem sets at the Calculator Pad section of the site. We have 5 Chemistry units and its growing rapidly.
physicsclassroom.com/calcpad
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25 Sep 2022
Making great progress on Chemistry additions to CalcPad. Will soon be done with our 5th Chemistry unit. That's 68 problem sets.
CalcPad is an automated problem-delivery and grading system. It's free and makes great in-class and at-home student practice.
physicsclassroom.com/calcpad
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7 Sep 2022
Hey Chem Teachers: Check out the good chemistry stuff growing in the Calculator Pad section of The Physics Classroom website ... like these problem sets on limiting and excess reactants.
physicsclassroom.com/calcpad…
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Tom Henderson retweeted
5 Sep 2022
We just uploaded Torque and Rotation Unit to our NEW Calculator Pad section. Very developmental. Lots of scaffolding. Immediate feedback. Great practice AP Physics 1 students. FREE. Teachers can purchase accounts to track student progress.
physicsclassroom.com/calcpad…
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3 Sep 2022
We just completed 14 nicely-scaffolded problem sets on the topic of Rotation and Torque for our new CalcPad section. AP Physics 1 teachers will appreciate these as they will provide awesome practice for their students. Check them out at
physicsclassroom.com/calcpad…
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