Waec Model Questions Vol1 2017 Agricultural Science Question 3

Practice essay / theory question 3 from the 2017 Waec Model Questions Vol1 Agricultural Science examination. This question covers Farm Tools .

Waec Model Questions Vol1 2017 Agricultural Science Essay / Theory

Topic: Farm Tools

Question 3 WAEC_MODEL_QUESTIONS_VOL1 • 2017 • AGRICULTURAL_SCIENCE • essay

Waec Model Questions Vol1 2017 Agricultural Science Question 3 diagram

A farmer is demonstrating the use of a traditional wooden lever‑type plough. The setup consists of a sturdy wooden beam 2.0 m long pivoted at one end on a fixed stake. The ploughshare is attached at the opposite end of the beam. The farmer applies a downward force of 150 N at a point 0.5 m from the pivot on the beam.

Question Parts

( a )

Explain, with reference to the law of the lever, how the farmer is able to increase the effective force on the ploughshare.

( b )

Calculate the magnitude of the force exerted on the ploughshare, assuming the beam is in static equilibrium.

( c )

Discuss two safety precautions the farmer should observe while using this lever‑type plough.

( d )

Suggest two maintenance practices that will prolong the service life of the wooden beam and the ploughshare.

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About This Question

This is Waec Model Questions Vol1 2017 Agricultural Science Question 3. It is one of the essay questions from the 2017 Waec Model Questions Vol1 Agricultural Science examination.

The question covers Farm Tools .

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