3. Energy and Work
Potential Energy — Quiz
Test your understanding of potential energy with 5 practice questions.
Practice Questions
Question 1
An object of mass $5 \, kg$ is lifted from a height of $2 \, m$ to $5 \, m$. What is the change in its gravitational potential energy? (Assume $g = 9.8 \, m/s^2$)
Question 2
A spring with spring constant $k = 300 \, N/m$ is stretched by $0.1 \, m$. What is the elastic potential energy stored in the spring?
Question 3
An object of mass $8 \, kg$ is lowered from a height of $6 \, m$ to $2 \, m$. What is the change in gravitational potential energy? (Assume $g = 9.8 \, m/s^2$)
Question 4
A spring is compressed by $0.25 \, m$ and stores $6.25 \, J$ of elastic potential energy. What is the spring constant $k$?
Question 5
An object of mass $12 \, kg$ is lifted from $4 \, m$ to $10 \, m$. What is the increase in its gravitational potential energy? (Assume $g = 9.8 \, m/s^2$)