Find the Acceleration of a Rocket-Powered Cart
- NOTE -
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- Students will be able to identify physical quantities (variables) that are necessary to use in the equations of motion for constant acceleration.
- Students will be able to rearrange kinematic equations to solve for an unknown quantity.
- Students will be able to solve for the acceleration of an object using kinematic equations.
Context for Use
Description and Teaching Materials
1) Student riding rocket-powered cart video
2) Student Instructions (Microsoft Word 25kB Jul13 12)
3) Teacher Solutions (Microsoft Word 33kB Jul13 12) (with solutions and hints)
Teaching Notes and Tips
Thoughts on differentiating this lesson:
To make this lesson less scaffolded, you could simply ask the students to use the video to find the acceleration of the cart. You might simply tell them that the video shows a cart accelerating uniformly. This would be appropriate as an assessment after students have mastered solving uniform acceleration problems and had some experience using direct measurement videos. It would also make the problem more appropriate for an AP Physics student.Thoughts on using technology:
You could also include uncertainty estimates for the measurements taken in the video.
This lesson could easily be adapted for use with online homework software, such as Quia or WebAssign.
References and Resources
Video credit to Peter Bohacek, Henry Sibley High School