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Fun, engaging games to boost memory, math fluency, typing speed, and English skills—perfect for learners of all ages.
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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Define work in your own words.
💡 Hint: Think about how work relates to force and movement.
Question 2
Easy
What is the formula for calculating kinetic energy?
💡 Hint: Recall the variables in the kinetic energy formula.
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 unit of work?
- Joule
- Watt
- Newton
💡 Hint: Recall the basic units of physical quantities.
Question 2
True or False: Energy and work have the same unit.
- True
- False
💡 Hint: Think about the definitions and relationships of both concepts.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A 5 kg object is lifted to a height of 10 m. Calculate the work done against gravity and the potential energy gained.
💡 Hint: Recall that work against gravity is the same as the gravitational potential energy gained.
Question 2
If a power lifter raises a 200 kg weight to 2 meters in 4 seconds, what is the power output?
💡 Hint: Start by figuring out the total work done in lifting the weight.
Challenge and get performance evaluation