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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Calculate the kinetic energy of a 2 kg object moving at a speed of 3 m/s.
💡 Hint: Use Ek = 1/2 mv² to find the answer.
Question 2
Easy
What is the formula for kinetic energy?
💡 Hint: Think about the variables involved!
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 kinetic energy of a 4 kg object moving at 5 m/s?
- 50 J
- 20 J
- 10 J
💡 Hint: Use the kinetic energy formula.
Question 2
True or False: Kinetic energy is proportional to the square of velocity.
- True
- False
💡 Hint: Think about the velocity term in the kinetic energy formula.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A cyclist with a mass of 70 kg travels at a speed of 15 m/s. Calculate the kinetic energy and explain what it means in the context of the cyclist's motion.
💡 Hint: Don’t forget to plug in the numbers correctly!
Question 2
If a moving truck with a mass of 2500 kg collides and comes to a stop from a speed of 25 m/s, calculate the amount of energy dissipated in the crash.
💡 Hint: Find the initial kinetic energy before the truck stops.
Challenge and get performance evaluation