1. Mechanics
Work And Energy — Quiz
Test your understanding of work and energy with 5 practice questions.
Practice Questions
Question 1
A 3 kg object is initially moving at 2 m/s. A net force of 6 N is applied in the direction of motion for 4 meters. What is the final speed of the object? (Assume no friction)
Question 2
A block of mass 4 kg is sliding on a horizontal surface with a speed of 3 m/s. A constant frictional force of 5 N opposes its motion. How far will the block slide before coming to rest?
Question 3
A 1.5 kg object is moving at 5 m/s. A force of 4 N is applied opposite to the direction of motion for 8 meters. What is the object's final speed?
Question 4
A 0.8 kg object is initially at rest at the top of a frictionless incline of height 5 meters. What is the speed of the object at the bottom of the incline? (Assume $g = 9.8 \ m/s^2$)
Question 5
A force of 12 N acts at an angle of $30^\circ$ above the horizontal on a 3 kg object, causing it to move 10 meters horizontally on a frictionless surface. What is the work done by the force?