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Newton Cart
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This gravity-powered metal car demonstrates the various principles of mechanics, including Newton's Laws of motion, energy and energy conversion, momentum, impulse, and work, showing each concept individually as well as integrated together in a system. As energy weights fall from the cart, the force of the weight produces tension in a flexible driveline. The car accelerates at a constant rate until the weights descend to the chassis, and then decelerates at a constant rate due to frictional forces, before eventually coming to a stop. Includes a text with activities designed for high school level study. Unit is approximately 39" in height.
Resources
High School Manual
Middle School Manual
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- Friday, January 27, 2012
Great New Teaching Aid
Reviewed By: Art (Chicago, IL)
A fun and effective all-in-one teaching aid for basic mechanics. Great for conceptual demonstration or verifying principles with data. A stopwatch and tape measure will do the job. Covers force, torque, friction, gravity, acceleration, power, potential and kinetic energy and more. See how they play together. Newton would have had fun with this one.
- Saturday, January 07, 2012
Revolutionary
Reviewed By: Dan (Chicago, IL)
The Newton Cart does it all!
Because it is self-powered by gravity, the Newton Cart has a number of desirable characteristics not found in other dynamics products.
• The NewtonCar has constant positive acceleration (versus simply deceleration) over extended distances
• The NC acceleration can be varied by changing the mass of the car or the mass of its energy weights or their elevation, or the rear end ratio of the spool/drive-wheel, or various combinations of these parameters. In other words, the car itself—and not some external pulling forces--can be easily modified to experiment with positive acceleration and deceleration.
• The NC can be used to demonstrate the effect on acceleration of “gearing” using its 3-1 spool-to-drivewheel diameter ratio, which can be easily be modified with tape wound onto the Spool.
• The Newton Cart's potential energy and kinetic energy can be readily calculated and verified with measurement. They cannot be calculated for most dynamic products without pulling them or without precise knowledge of their center of gravity
• The NewtonCar produces Torque, which is easily measured and changeable to accelerate its Drive-wheel, unlike other dynamics products.
• The NC does not need a ramp or special track. However it can be rolled down a ramp like a cart for use in various experiments.
• The Newton Cart's velocity can be determined and plotted with good accuracy, without instrumentation, during both acceleration and deceleration, since both are virtually constant.
o This would be highly desirable for experiments involving collisions with other objects for measuring conservation of momentum and kinetic energy.
o since acceleration and deceleration is constant, the NC can be used as a cart double as a DK and can also perform the same functions as a DK.
o It can descend down a slope, climb a hill and accelerate from a standing position on a horizontal surface.
• You cannot
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