2.2.2 - Units
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
Define work in a physics context.
💡 Hint: Think about force and movement.
What is the SI unit of energy?
💡 Hint: Think about the same unit used for work.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What is the formula for calculating work?
💡 Hint: Remember to consider the direction of force.
Is energy conserved in an isolated system?
💡 Hint: Think about energy transformations.
1 more question available
Challenge Problems
Push your limits with advanced challenges
Calculate the speed of a car if it has 240,000 joules of kinetic energy and its mass is 800 kg.
💡 Hint: Rearrange the kinetic energy formula to find velocity.
If a 10 kg object is lifted 3 meters, how much work is done against gravity?
💡 Hint: Use the work done against gravitational force.
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.