Neco Model Questions Vol1 2021 Physics Question 3

Practice practical question 3 from the 2021 Neco Model Questions Vol1 Physics examination. This question covers Motion, Kinematics, Acceleration, Experimental error .

Neco Model Questions Vol1 2021 Physics Practical
Topics: Motion Kinematics Acceleration Experimental error
Question 3 NECO_MODEL_QUESTIONS_VOL1 • 2021 • PHYSICS • practical

A smooth inclined plane is fixed on a laboratory bench. A ticker timer that marks a dot every 0.02 s is used to study the motion of a low‑friction cart released from rest at the top of the plane. The plane can be set at two angles, 30° and 45°, measured with a protractor. The distances (in centimetres) between successive dots recorded by the ticker timer for each angle are given below. **Angle 30°** (distance between successive dots): 1.2, 1.4, 1.6, 1.8, 2.0 cm **Angle 45°** (distance between successive dots): 1.5, 1.8, 2.2, 2.7, 3.3 cm Assume the cart starts from rest at the first dot. Answer the following:

Question Parts

( a )
For each angle, calculate the average acceleration of the cart using the first and last recorded velocities.
( b )
Using the relation a = g sinθ, calculate the experimental value of g for each angle and compare it with the accepted value 9.8 m s⁻². State the percentage deviation.
( c )
Identify two probable sources of systematic error that could affect the acceleration values obtained.
( d )
Suggest one practical improvement to reduce the error identified in part (c).

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About This Question

This is Neco Model Questions Vol1 2021 Physics Question 3. It is one of the practical questions from the 2021 Neco Model Questions Vol1 Physics examination.

The question covers Motion, Kinematics, Acceleration, Experimental error .

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