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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 kinetic energy?
💡 Hint: Think about what each variable stands for.
Question 2
Easy
If an object has a mass of 2 kg and is moving at a speed of 3 m/s, what is its kinetic energy?
💡 Hint: Remember to square the speed first!
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 kinetic energy?
💡 Hint: Think about objects that are moving.
Question 2
Which of the following equations represents kinetic energy?
- K.E. = mv
- K.E. = 1/2 mv²
- K.E. = mgh
💡 Hint: Look for the equation with velocity squared.
Solve 1 more question and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Calculate the kinetic energy of an object with a mass of 25 kg that accelerates to a speed of 12 m/s. Also, determine how much work was done to reach that speed, assuming it started from rest.
💡 Hint: Use the kinetic energy formula.
Question 2
A cyclist achieves a velocity of 15 m/s. If the total mass of the cyclist and the bicycle is 80 kg, how much kinetic energy do they possess? If the cyclist wants to increase the speed to 30 m/s, how much additional work is needed?
💡 Hint: Calculate both initial and final kinetic energies using the respective speeds.
Challenge and get performance evaluation