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Physics
Mechanics System 1 - code: 4861.19

An introductory system to study basic mechanics. Our high quality Mechanics System 1 comes in a heavy duty carry-case for ease of storage. Simple to set-up with all components easily accessible. The system consists of: balance, inclined plane, friction block, weights, simple machines, pulleys, levers, springs and scales. A variety of experiments can be carried out using this kit.
Equipment suggested:
Electronic Balance (code 2219.30)
Dual Range Force Sensor (code 2311.10)
Motion Detector (code 2310.10)
or Go!Motion (code 2320.10)
LabPro (code 2300.10)
or LabQuest (code 2300.30)
or Go!Link (code 2320.30) 
experiments
  • Analytical balance and the investigation of weight as a force
  • Belt drive systems
  • Composition, decomposition and transmission
  • Hooke’s Law with spring and with spring leaf
  • Inclined plane and friction
  • Kinetic and potential energy
  • Levers: including first, second and third class type
  • Pulley systems: including fixed, mobile and differential pulleies
  • Simple pendulum and spring pendulum
  • Springs in series and in parallel
Experiments
Analytical balance and the investigation of weight as a force

The balance is an instrument that allows, in a gravitational fi eld, to
measure the unknown masses by comparison with sample masses. One
sample experiment is the determination of the sensitivity of a balance
which has arms of equal length.
The more sensitive a balance is, the smaller the variation in a mass (m) the balance can detect and measure.
If the test mass (m) is lesser in magnitude than the sensitivity of the
balance, it will not be detected.
With reference to the diagram, if load a test mass (M) on each pan of
the balance and assuming that the distance between each of the pans
is equidistant and represented by “a”, we can vary weight on one of the
pans which will result in a displacement through an angle defined by α.
Therefore, we can see that the sensitivity of a balance depends on several design characteristics as well as the patience of the experimenter. For example, the more stable the design of a balance, the more mass is needed to move the balance noticeably.
Additionally, the more friction at the locations where movement is required, the less sensitive the balance will be.