5.14 - Exercises
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Practice Questions
Test your understanding with targeted questions
What is the formula for work done?
💡 Hint: Think about the force and displacement directions.
Calculate the work done if a force of 10 N moves an object 5 m in the direction of the force.
💡 Hint: Multiply force by distance.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the relationship between work and energy?
💡 Hint: Think of how work affects energy in physics.
True or False: Kinetic energy can be negative.
💡 Hint: Consider the formula for kinetic energy.
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Challenge Problems
Push your limits with advanced challenges
A 5 kg block slides down a frictionless incline of height 10 m. Calculate its speed at the bottom of the incline.
💡 Hint: Think about energy conversion principles.
An elevator transports a 1200 kg load to a height of 30 m. If the elevator's efficiency is 80%, calculate the energy consumed.
💡 Hint: Break down energy calculations into potential energy.
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Reference links
Supplementary resources to enhance your learning experience.