City Guilds Model Questions Vol1 2021 Engineering Question 3

Practice practical question 3 from the 2021 City Guilds Model Questions Vol1 Engineering examination. This question covers Static friction, Coefficient of friction, Error analysis, Experimental procedure .

City Guilds Model Questions Vol1 2021 Engineering Practical
Topics: Static friction Coefficient of friction Error analysis Experimental procedure
Question 3 CITY_GUILDS_MODEL_QUESTIONS_VOL1 • 2021 • ENGINEERING • practical

A wooden block of mass 0.50 kg is placed on a smooth wooden inclined plane. The plane is gradually raised until the block just begins to slide. The angle of inclination is recorded for three successive trials as 15.0°, 16.2° and 14.5°. The experiment is to be used to determine the coefficient of static friction between the block and the plane.

Question Parts

( a )
Calculate the coefficient of static friction (μ) for each trial.
( b )
Determine the average coefficient of static friction from the three trials.
( c )
Identify two possible sources of error in this experiment and suggest one method to minimise each error.
( d )
Explain why it is important to use the same block for all three trials.

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About This Question

This is City Guilds Model Questions Vol1 2021 Engineering Question 3. It is one of the practical questions from the 2021 City Guilds Model Questions Vol1 Engineering examination.

The question covers Static friction, Coefficient of friction, Error analysis, Experimental procedure .

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