GRAVITY ACCELERATION DEMO APPARATUS: By free-fall

GRAVITY ACCELERATION DEMO APPARATUS: By free-fall

•  This apparatus demonstrates Gravity Acceleration or ‘G’ by the free fall method.
•  The apparatus comprises an electromagnet which is housed in a plastic case fitted with two 4mm sockets for connecting to it.
•  Another pair of 4mm sockets are used to connect a suitable electronic timer for timing the fall.
•  A ball-bearing (supplied) is held in place by the electromagnet.
•  When the electromagnet is switched off the ball-bearing falls and hits a platform which activates a micro switch stopping the timer.
•  The time of the fall is recorded on the timing device.
  (Note: *Image is for reference. Retort stand not included.)

(Wikipedia excerpt: ..."...The standard acceleration of gravity or standard acceleration of free fall, often called simply standard gravity and denoted by ɡ0 or ɡn, is the nominal gravitational acceleration of an object in a vacuum near the surface of the Earth. It is a constant defined by standard as 9.80665 m/s2 (about 32.17405 ft/s2). This value was established by the third General Conference on Weights and Measures (1901, CR 70) and used to define the standard weight of an object as the product of its mass and this nominal acceleration.[1][2] The acceleration of a body near the surface of the Earth is due to the combined effects of gravity and centrifugal acceleration from the rotation of the Earth (but the latter is small enough to be negligible for most purposes); the total (the apparent gravity) is about 0.5% greater at the poles than at the Equator.[3][4]..")

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