2.1.2 - Units
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Practice Questions
Test your understanding with targeted questions
What is the formula for calculating work?
💡 Hint: Consider the relationship between force and distance.
What is the SI unit of work?
💡 Hint: What does one Joule represent?
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is work measured in?
💡 Hint: Recall the SI unit for energy.
Power is defined as the rate at which what is done?
💡 Hint: Think about how fast you can do a job!
2 more questions available
Challenge Problems
Push your limits with advanced challenges
A cyclist performs 150 J of work against gravity to climb a hill. If their mass is 75 kg, what is the height of the hill?
💡 Hint: Rearrange the potential energy formula to isolate height.
A car accelerates from rest to a speed of 30 m/s. If it has a mass of 1000 kg, calculate the kinetic energy and the work done to achieve this speed.
💡 Hint: Use the kinetic energy formula to calculate the energy needed.
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