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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 work?
💡 Hint: Remember the angle between force and displacement.
Question 2
Easy
What does kinetic energy measure?
💡 Hint: Think about what happens when objects move.
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 work defined as?
- The product of mass and velocity
- The product of force and displacement
- The energy of motion
💡 Hint: Consider the factors that contribute to work.
Question 2
True or False: Kinetic energy is always negative.
- True
- False
💡 Hint: Think about the properties of energy.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
A truck of mass 2,000 kg is moving at a speed of 15 m/s. Calculate its kinetic energy. Then, if it encounters a frictional force of 500 N while moving 10 m, how much work is done against this force?
💡 Hint: Remember to break the problem into parts: calculating kinetic energy first, then work done.
Question 2
A ball is lifted vertically 2 m with a constant force of 10 N. Calculate the work done. If the ball has a mass of 1 kg and is then dropped, what will its kinetic energy be just before hitting the ground?
💡 Hint: Think about how energy transforms from gravitational potential energy to kinetic energy.
Challenge and get performance evaluation