Waec Model Questions Vol1 2021 Physics Question 1

Practice essay / theory question 1 from the 2021 Waec Model Questions Vol1 Physics examination. This question covers Measurements and Units, Force, Friction .

Waec Model Questions Vol1 2021 Physics Essay / Theory

Topics: Measurements and Units Force Friction

Question 1 WAEC_MODEL_QUESTIONS_VOL1 • 2021 • PHYSICS • essay

Waec Model Questions Vol1 2021 Physics Question 1 diagram

A laboratory set‑up consists of an inclined plane that can be fixed at any required angle, a smooth block of mass 2.0 kg placed on the plane, a spring balance attached to the block and pulling it up the plane, and a protractor indicating the angle of inclination. The plane is set at 30° to the horizontal and, when the block moves down the plane at constant speed, the spring balance reads 5.0 N.

Question Parts

( a )

Calculate the component of the block’s weight acting parallel to the inclined plane.

( b )

Using the information that the block moves at constant speed, determine the kinetic friction force acting on the block.

( c )

Calculate the coefficient of kinetic friction (μ_k) between the block and the plane.

( d )

Based on the value obtained, comment briefly on the nature of the surface of the plane (rough, smooth, very smooth, etc.).

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About This Question

This is Waec Model Questions Vol1 2021 Physics Question 1. It is one of the essay questions from the 2021 Waec Model Questions Vol1 Physics examination.

The question covers Measurements and Units, Force, Friction .

View More Waec Model Questions Vol1 2021 Physics Questions More Waec Model Questions Vol1 Practice Questions Back to Questions

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