A mark on the Simple Flywheel Apparatus and a pointer on the bracket enables the revolutions to be counted and timed with the stop watch supplied. From the timings of a known number of revolutions, students can then verify the expeirmental capabilities of the apparatus. A steel disc Ø250mm diameter and 30mm thick is mounted on a shaft running in precision bearings housed in a substantial wall bracket. A cord, load hanger and set of weights are provided to start the flywheel rotating.
Experimental Capabilities:
To compare experimental and calculated moments of inertia of a disc
To study the energy transformations and to demonstrate that a flywheel can be used to store energy
To verify the second law of motion applied to a flywheel, ie the relationship between torque and angular acceleration
The unit also includes a vibrating arm to enable traces to be drawn on a paper strip positioned on the circumference of the flywheel. Energy of Flywheel apparatus is an extremely robust and versatile unit comprising of the main flywheel, the mass of which can be varied by adding and removing two rings and one disc, and mounted on a heavy duty stand suitable for mounting. The assembly, of overall dimensions 450 mm long by 400 mm wide by 360 mm high, is supplied complete with paper roll, bottle of ink, spare vibrator brush, ink feed brush and length of cord, but without masses and hanger. The fully assembled flywheel, which measures 300 mm in diameter and is 75 mm wide, is fitted with a special antifriction bearing.
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A flywheel mounted in ball bearings is placed in motion by a weight attached to a pulley. The inertia of the flywheel can be determined from the fall time of the weight. Using the basic experiments on uniformly accelerated angular motion can be performed. The unit is intended for wall mounting. Due to the clear, robust construction the unit is excellently suited to student experiments.
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