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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 about what unit describes energy.
Question 2
Easy
Define kinetic energy in one sentence.
π‘ Hint: Consider something that is moving.
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
What is the formula for work?
- W = Fs
- W = F Γ s Γ cos ΞΈ
- W = F/s
π‘ Hint: Consider the angle's effect on work.
Question 2
True or False: Energy can be created or destroyed.
- True
- False
π‘ Hint: Remember the principle of conservation.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A 1,500 kg car is traveling at 20 m/s. Calculate its kinetic energy and then determine how much work is required to bring it to a stop.
π‘ Hint: Remember, stopping means removing kinetic energy.
Question 2
An object of mass 5 kg is lifted to a height of 10 meters. Calculate work done against gravity and its potential energy at that height.
π‘ Hint: Use the mass, gravitational acceleration, and height to calculate both energies.
Challenge and get performance evaluation