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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the formula for calculating work?
π‘ Hint: Think about the components involved in applying a force and moving an object.
Question 2
Easy
Name the SI unit of work.
π‘ Hint: What is the relationship between newtons and meters?
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 of the following formulas correctly represents work?
- W = F Γ s
- W = F Γ s Γ cos ΞΈ
- W = F + s
π‘ Hint: Consider how displacement affects the work done.
Question 2
True or False: The SI unit of power is Joules per second.
- True
- False
π‘ Hint: Remember the relationship between power and energy.
Solve 2 more questions and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
If a force of 10 N is applied at an angle of 30 degrees to the horizontal, and the displacement is 5 m, calculate the work done.
π‘ Hint: Calculate cosine of the angle first before multiplying.
Question 2
A 2 kg object is dropped from a height of 10 m. Calculate its potential energy at the top and its kinetic energy just before it hits the ground.
π‘ Hint: Use the energy conservation principle to find KE before impact.
Challenge and get performance evaluation