Igcse Model Questions Vol1 2020 Physics Question 1

Practice practical question 1 from the 2020 Igcse Model Questions Vol1 Physics examination. This question covers Measurements and Units .

Igcse Model Questions Vol1 2020 Physics Practical
Topic: Measurements and Units
Question 1 IGCSE_MODEL_QUESTIONS_VOL1 • 2020 • PHYSICS • practical

A student is required to determine the acceleration due to gravity (g) using a simple pendulum. The length of the pendulum string is measured with a metre rule as 100.0 cm. The student times 10 complete oscillations on three separate trials and records the total times shown in the table below. | Trial | Time for 10 oscillations (s) | |-------|------------------------------| | 1 | 20.15 | | 2 | 20.05 | | 3 | 20.10 | Using this data, the student must calculate the average period, determine g, express the result to two significant figures, calculate the percentage error and comment on the experiment.

Question Parts

( a )
Calculate the period of one oscillation for each trial and then find the average period (T̅).
( b )
Using the average period, calculate the value of g. (Use T = 2π√(L/g) and rearrange for g.)
( c )
Express the value of g to two significant figures and calculate the percentage error relative to the accepted value 9.81 m s⁻².
( d )
State two possible sources of error in this experiment and suggest one way to reduce each.

Detailed Solution & Marking Scheme

Get the step-by-step solution, key points required by examiners and detailed marking guidance through the Edcrib AI Tutor.

Reveal Answer

About This Question

This is Igcse Model Questions Vol1 2020 Physics Question 1. It is one of the practical questions from the 2020 Igcse Model Questions Vol1 Physics examination.

The question covers Measurements and Units .

View More Igcse Model Questions Vol1 2020 Physics Questions More Igcse Model Questions Vol1 Practice Questions Back to Questions

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows
Chat with Support