Question detail
A spring has a spring constant of 200 N/m and is compressed by 0.3 m. What is the elastic potential energy stored in the spring?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Energy changes in a system, and the ways energy is stored before and after such changes
Question
- A. 9 J
- B. 6 J
- C. 12 J
- D. 3 J
Answer
9 J
Explanation
The elastic potential energy is calculated using the formula Ee = 0.5 x k x e^2. Substituting the values gives Ee = 0.5 x 200 N/m x (0.3 m)^2 = 9 J.
Common mistake
Common Mistake in Rearranging Equations
Students often confuse the variables when rearranging energy equations, leading to incorrect calculations of mass or height.
To fix this, carefully identify each variable in the equation and ensure you understand the relationships between them before rearranging.
Related flashcards
Flashcard 1 of 5
Related practice questions
Question 1 of 5
Choose an answer, get feedback, then move sideways through the set.