Photo AI
Which graph shows how the gravitational potential energy $E_p$ of a simple pendulum varies with displacement $s$ from the equilibrium position? A B C D - AQA - A-Level Physics - Question 31 - 2018 - Paper 1
Question 31
Which graph shows how the gravitational potential energy $E_p$ of a simple pendulum varies with displacement $s$ from the equilibrium position? A B C D
Worked Solution & Example Answer:Which graph shows how the gravitational potential energy $E_p$ of a simple pendulum varies with displacement $s$ from the equilibrium position? A B C D - AQA - A-Level Physics - Question 31 - 2018 - Paper 1
Step 1
Identify the correct graph
Answer
The correct graph is D.
In a simple pendulum, gravitational potential energy increases as the displacement from the equilibrium position increases. This energy is maximum when the pendulum is at the maximum height (maximum displacement) and zero at the equilibrium position. Graph D represents a parabolic relationship, where increases with displacement, reflecting the physics of a pendulum.