4.1.4 - Mechanical Energy: The Sum of Motion and Position
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions
What is mechanical energy?
💡 Hint: Remember the formula ME = KE + PE.
Which type of energy is related to an object's height?
💡 Hint: Think of an object sitting on a shelf.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What does mechanical energy consist of?
💡 Hint: Recall the formula ME = KE + PE.
True or False: In an ideal system, the total mechanical energy can change due to external forces.
💡 Hint: Think about conservation principles.
1 more question available
Challenge Problems
Push your limits with advanced challenges
A roller coaster starts at a height of 20 m with a mass of 500 kg. Calculate its potential energy at the top and its kinetic energy at the bottom, ignoring friction.
💡 Hint: Use conservation of energy principles.
If a 0.2 kg ball is thrown upwards with an initial speed of 30 m/s, find its height when potential energy equals kinetic energy.
💡 Hint: Set the two energy equations equal to solve.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.