Skip to content

Course home

Force, energy and momentum

Force, energy and momentum

EasyMediumHard
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051
Question 8

A spring of stiffness k k\,k is stretched by an extension eee. When the stretching force is released, the spring returns to its unstretched length in time ttt.

What is the average power developed by the spring as it returns to its unstretched length?

A

ke2t\frac{k e}{2 t}2tke​

B

ke2t\frac{k e^2}{t}tke2​

C

ke22t\frac{k e^2}{2 t}2tke2​

D

k2e2t\frac{k^2 e}{2 t}2tk2e​

Markscheme

Force, energy and momentum Questions

  1. A Level
  2. /Physics
  3. /Force, energy and momentum

84 exam-style questions on AQA A Level Physics Force, energy and momentum, covering Scalars and vectors, Moments, Motion along a straight line, Projectile motion, Newton's laws of motion, Momentum, Work, energy and power, and Conservation of energy. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank