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Students can use the Rail Twirler to plan and conduct an investigation to compare the effects of different strengths or different directions of pushes and pulls on the motion of an object.
Students can use the Rail Twirler to make observations and/or measurements of an object's motion to provide evidence that a pattern can be used to predict future motion.
Students can use the Rail Twirler to plan an investigation to provide evidence that the change in an object's motion depends on the sum of the forces on the object and the mass of the object.
Students can use the Rail Twirler in an investigation to construct and present arguments using evidence to support the claim that gravitational interactions are attractive depends on the masses of interacting objects.
A system of objects may also contain stored (potential) energy, depending on their relative positions.
Students can use the Rail Twirler in an investigation to apply Newton's Second Law of Motion. Students can analyze data to support the claim that Newton's Second Law of Motion describes the mathematical relationship among the net force on an object, its mass, and its acceleration.
Students can use the Rail Twirler in an investigation and use mathematical representations to support the claim that the total momentum of a system of objects is conserved when there is no net force on the system.
The Rail Twirler uses the basic laws of physics and gravity to enable hands-on opportunities. Students can use the Rail Twirler in an unlimited number of investigations. And is a great way to demonstrate the conversion of potential energy to kinetic energy and back again. The Rail Twirler has a magnetic wheel on the rail and tip the rail upward to begin the spinning action.
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