University of Minnesota
University of Minnesota: Mechanics Problems: Force Problems
This University of Minnesota site provides a series of contextually rich, real-world problems demonstrating force and Newton's second law of motion.
Walter Fendt
Walter Fendt: Inclined Plane
This site is an interactive app of an inclined plane showing the effect of the angle, the weight of the block, and the friction as a block is pulled up an incline.
Texas Education Agency
Texas Gateway: 4.5 Normal, Tension, and Other Examples of Force
By the end of this section, you will be able to define normal and tension forces, apply Newton's laws of motion to solve problems involving a variety of forces, and use trigonometric identities to resolve weight into components.
Khan Academy
Khan Academy: An Elevator in a Hospital
This passage will test your knowledge on normal forces.
Sophia Learning
Sophia: Normal Force & Mass: Lesson 1
This lesson demonstrates how normal forces can be used to find the mass of an object. It is 1 of 2 in the series titled "Normal Force & Mass."
Sophia Learning
Sophia: Kinetic Friction & Normal Forces: Lesson 1
This lesson explains why kinetic friction depends on normal forces. It is 1 of 2 in the series titled "Kinetic Friction & Normal Forces."
Sophia Learning
Sophia: Normal Force: Lesson 1
This lesson introduces the concept of normal forces. It is 1 of 2 in the series titled "Normal Force."
Sophia Learning
Sophia: Normal Force & Acceleration: Lesson 1
This lesson explains what the acceleration of an object experiencing a normal force is. It is 1 of 2 in the series titled "Normal Force & Acceleration."
Sophia Learning
Sophia: Practice W/ Contact & Normal Forces: Lesson 1
This lesson provides the learner with example problems on differentiating contact and normal forces. It is 1 of 2 in the series titled "Practice w/ Contact & Normal Forces."
Physics Classroom
The Physics Classroom: Energy Conservation on an Incline
This site is a discussion and animation about whether the total mechanical energy of a cart rolling down an incline is conserved, which can be determined if there are any external forces acting upon it.
University of Minnesota
University of Minnesota: Mechanics Problems: Force and Linear Kinematics Problem
This University of Minnesota site provides a series of contextually rich problems pertaining to force, Newton's second law of motion, and linear kinematics.