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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the formula for kinetic energy?
💡 Hint: Consider how mass and velocity contribute.
Question 2
Easy
If the mass of an object doubles while its velocity remains the same, how does its kinetic energy change?
💡 Hint: Think of the relationship K ∝ m.
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 proportional to?
- mass alone
- velocity alone
- mass and velocity squared
💡 Hint: Remember the formula K = 1/2 mv².
Question 2
True or False: Kinetic energy can be negative.
- True
- False
💡 Hint: Think about the mathematical definition of kinetic energy.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A 2 kg object moving with a speed of 5 m/s collides with a stationary object of mass 3 kg. Assuming a perfectly elastic collision, find the final velocities of both objects.
💡 Hint: Set up equations from momentum and energy conservation.
Question 2
A vehicle traveling at 60 km/h comes to a halt due to a frictional force. Calculate the distance traveled before stopping if its mass is 1000 kg and the coefficient of friction is 0.6.
💡 Hint: Convert speed to m/s, then apply K=1/2 mv² and W=F x d.
Challenge and get performance evaluation