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.jpg "Work Done By A Variable Force (Vertical Effort)- Engineering Lab Training Systems")
CAT NO: DIDACTICNLE-Export-056017
Work Done By A Variable Force (Vertical Effort)- Engineering Lab Training Systems.
Features
Low cost, effective teaching
Self-contained
Bench mounted
Reinforces concepts of work and energy
Three year warranty
Range of Experiments
To determine the work done by a variable effort and to compare with the work done in lifting the load
To show that the work done by the effort is equal to the change in potential energy of the load
Description
This
experiment is designed to reinforce the general principle that the work
done, particularly by a variable force, can be determined simply by
measuring the area under the graph of force and distance moved. It forms
a comparison experiment with HFC7 which is concerned with the work done
by a variable tangential force.
The experiment is deliberately
simple so that theoretical comparisons are easily made. It forms a good
introduction to simple machines, leading to later studies on machine
performance.
The apparatus is a simple lifting mechanism with
obvious non linear characteristics. A suspension cord carrying a loaded
trolley at mid span is tensioned by passing the cord over a pulley at
one end and down to a weight hanger. As the vertical effort is
increased, the tensioned cord will move to a new equilibrium position
lifting the loaded trolley. Heights of the load and effort are measured
relative to the base.
All the pulleys are fitted with ball bearings to minimize friction effects.
This
equipment is part of a range designed to both demonstrate and
experimentally confirm basic engineering principles. Great care has been
given to each item so as to provide wide experimental scope without
unduly complicating or compromising the design. Each piece of apparatus
is self-contained and compact. Setting up time is minimal, and all
measurements are made with the simplest possible instrumentation, so
that the student involvement is purely with the engineering principles
being taught. A complete instruction manual is provided describing the
apparatus, its application, experimental procedure and typical test
results.
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