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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 effort and movement relate.
Question 2
Easy
What is kinetic energy?
💡 Hint: Remember the formula for kinetic energy.
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 definition of work in physics?
- A. Work is done only if there is motion.
- B. Work equals force multiplied by displacement in the direction of the force.
- C. Work can happen without energy.
- D. Work is a type of energy.
💡 Hint: Think of how work is calculated mathematically.
Question 2
Which of the following scenarios depicts energy being used?
- True
- False
💡 Hint: Consider different forms of activity that expends energy.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A 5 kg box is lifted to a height of 2 meters. Calculate the work done against gravity.
💡 Hint: Recall the weight and the height the box is lifted.
Question 2
If a person exerts a force of 30 N to push an object a distance of 3 m in the direction of the force, what is the power exerted if the action takes 4 seconds?
💡 Hint: Break down the calculation into work done and then use it to find power.
Challenge and get performance evaluation