3. Energy and Work
Kinetic Energy — Quiz
Test your understanding of kinetic energy with 5 practice questions.
Practice Questions
Question 1
A 4 kg object is moving at 3 m/s. If the object’s velocity is increased to 9 m/s, what is the change in its kinetic energy?
Question 2
A 2 kg object is initially moving at 4 m/s. A force acts on it and increases its velocity to 10 m/s. How much work did the force do on the object?
Question 3
An object’s kinetic energy increases from 50 J to 200 J. If the object’s mass is 5 kg, what is the ratio of its final velocity to its initial velocity?
Question 4
A 3 kg object is moving at 8 m/s. A force does 96 J of work on the object in the direction of motion. What is the object’s final velocity?
Question 5
An object of mass 1.5 kg is moving with a velocity of 12 m/s. A force acts on it, and its velocity decreases to 6 m/s. How much work was done by the force?