Practice - Contact Forces
Enroll to start learning
You’ve not yet enrolled in this course. Please enroll for free to listen to audio lessons, classroom podcasts and take practice test.
Practice Questions
Test your understanding with targeted questions
What is friction?
💡 Hint: Think about what happens when two materials rub against each other.
Define tension in terms of a rope.
💡 Hint: Consider what happens when you pull a rope tight.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What opposes the motion of an object?
💡 Hint: It's what slows things down when they’re sliding.
True or False: Tension decreases with increasing length of a rope.
💡 Hint: Think about how tension is transferred along the rope.
2 more questions available
Challenge Problems
Push your limits with advanced challenges
A block of mass 5 kg is resting on a horizontal surface. Calculate the normal force acting on the block. If the surface has a friction coefficient of 0.3, what is the maximum static friction force?
💡 Hint: Use the weight of the block to find normal force first.
If an object is being pulled with a force of 100 N and opposes with friction of 60 N, what is the acceleration of the object with mass 10 kg?
💡 Hint: Determine net force first then apply Newton's second law!
Get performance evaluation
Reference links
Supplementary resources to enhance your learning experience.