A.3.1 - Work
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 the formula for work?
💡 Hint: Think about the components involved in work.
If no displacement occurs, is work done?
💡 Hint: Consider the definition of work.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is the standard unit of work?
💡 Hint: Consider what unit is commonly used to measure energy and work.
Is work done if an object is at rest?
💡 Hint: Think about what constitutes work in physics.
1 more question available
Challenge Problems
Push your limits with advanced challenges
A flatbed truck exerts a force of 600 N on a 150 kg load while moving it 20 m up a slope inclined at 45°. How much work is done on this load?
💡 Hint: Use W = F·s·cos(θ). Calculate cos(45°) for precise work.
A cyclist exerts a force of 50 N while pedaling uphill. If the hill rises at an angle of 10° over a distance of 100 m, how much work is done against gravity?
💡 Hint: Focus on the effective component of force against gravity using sin(θ).
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.