2.2.4 - Kinetic Energy (KE)
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Practice Questions
Test your understanding with targeted questions
Calculate the kinetic energy of a 2 kg ball moving at 10 m/s.
💡 Hint: Use the kinetic energy formula.
If an object has a kinetic energy of 50 J and its velocity is 10 m/s, what is its mass?
💡 Hint: Use the kinetic energy formula and solve for mass.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the formula for kinetic energy?
💡 Hint: Think about how mass and speed influence energy.
If a moving object’s speed is increased, what happens to its kinetic energy?
💡 Hint: Recall how speed is factored into the kinetic energy formula.
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Challenge Problems
Push your limits with advanced challenges
A truck with a mass of 9000 kg travels at 15 m/s. Calculate its kinetic energy. After it collides and loses half its speed, what is the new kinetic energy?
💡 Hint: Calculate initial and final kinetic energies using the formula.
A cyclist with a mass of 70 kg is cycling at 10 m/s. How much additional kinetic energy does she gain if she speeds up to 20 m/s?
💡 Hint: Calculate the change in KE by finding the difference between final and initial kinetic energies.
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