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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the SI unit of work?
π‘ Hint: Think of work and energy being measured the same way.
Question 2
Easy
What formula do we use to calculate kinetic energy?
π‘ Hint: Remember, mass and velocity are involved in this calculation.
Practice 4 more questions and get performance evaluation
Interactive Quizzes
Engage in quick quizzes to reinforce what you've learned and check your comprehension.
Question 1
Which formula calculates work?
- W = F Γ s
- W = F Γ s Γ cos ΞΈ
- W = F/s
π‘ Hint: Think about how direction affects work.
Question 2
True or False: Work can be done without displacement.
- True
- False
π‘ Hint: Consider the definition of work.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A hiker climbs a hill of 120 m height carrying a backpack of 15 kg. Calculate the potential energy gained by the backpack.
π‘ Hint: Use the potential energy formula, and substitute the values properly.
Question 2
A car has a mass of 1000 kg and accelerates from rest to a speed of 25 m/s. Calculate the work done on the car.
π‘ Hint: Think of how work relates to the change in kinetic energy.
Challenge and get performance evaluation