QQuestionPhysics
QuestionPhysics
A rubber band is stretched and then released. According to the law of conservation of energy, what happens when the rubber band is released?
A. The total amount of energy increases.
B. The total amount of energy decreases.
C. The total amount of energy remains the same.
D. The total amount of energy is lost as heat.
12 months agoReport content
Answer
Full Solution Locked
Sign in to view the complete step-by-step solution and unlock all study resources.
Step 1:Let's solve this problem step by step:
Step 2:: Understand the Law of Conservation of Energy
The law of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another. In a closed system, the total energy remains constant.
Step 3:: Analyze the Rubber Band Scenario
When a rubber band is stretched, potential energy is stored in the band due to the elastic deformation. This is a form of potential energy.
Step 4:: Energy Transformation
When the rubber band is released: - The stored potential energy is converted into kinetic energy - Some energy may be converted to heat due to friction - However, the TOTAL amount of energy remains the same
Step 5:: Evaluate the Options
- Option A is incorrect: Energy does not increase - Option B is incorrect: Energy does not decrease - Option D is partially true but not the complete answer - Option C is the most accurate representation of the law of conservation of energy
Final Answer
The total amount of energy remains the same. Key Insight: E_{total} = E_{potential} + E_{kinetic} + E_{heat} = \text{constant} The rubber band simply transforms its stored potential energy into other forms of energy (kinetic and heat) while maintaining the same total energy level.
Need Help with Homework?
Stuck on a difficult problem? We've got you covered:
- Post your question or upload an image
- Get instant step-by-step solutions
- Learn from our AI and community of students