Vernier Video Physics

Category: Science

Ages: 18+ 11-14
Price: iPhone/iPad - £3.99

Science teachers will be in awe of how simple this app can take the motion of an object and transfer it into a graph. Capture a video using the camera on-the-go or use a clip from the examples provided and the app will get to work tracking the motion. Add in scale and the motion-graphs generated can then be analysed to calculate speed, acceleration and displacement.


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From the Developer

Video Physics brings physics video analysis to iPhone, iPod touch and iPad. Take a video of an object in motion, mark its position frame by frame, and set up the scale using a known distance. Video Physics then draws trajectory, position, and velocity graphs for the object. Share video, graphs and data to facebook, your Photo Library and to your computer running Vernier's Logger Pro software.

Video Physics is perfect for physics students and instructors. Perform on-the-go analysis of interesting motions. Measure the velocity of a child's swing, a roller-coaster, or a car. Or, take a video of a basketball free throw shot. Video Physics will display the path of the ball and provide graphs of Y vs X as well as the X and Y position and velocity as a function of time.

Features of Vernier Video Physics:
• Capture a new video using the built-in camera, choose a video from your photo library, or use one of our sample videos.
• Mark the position of one object, frame by frame.
• Set the scale of the video using an object of known size.
• Optionally set coordinate system location and rotation.
• View graphs of trajectory, and x/y position and velocity.
• Export the marked video to Facebook or your Photo Library. Graphs are appended to video.
• Email the video and data for further analysis in Vernier's Logger Pro software for OSX and Windows.

Supported hardware:
• iPhone 3GS or newer
• iPod touch 3rd generation or newer
• iPad and iPad 2

**iPod touch 1st and 2nd generation, original iPhone, and iPhone 3G are NOT compatible with Vernier Video Physics, due to hardware limitations.

See the Video Physics support page for instructions on transferring video to a device without a camera.

Hints for taking useful videos:
• Do not move the camera. Analysis assumes the camera is fixed in position.
• The object in motion should remain approximately in a plane perpendicular to the viewing direction.
• Know the dimensions of an object (such as a ruler) in the same plane as the motion. You will need this to scale the video.

Video Physics is intended for use in physics education. The video analysis done in Video Physics is a useful technique for studying two-dimensional kinematics. You can do even more with Vernier's Logger Pro software for Mac OS X and Windows.

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