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Create an applied force and see how it makes objects move. Change friction and see how it affects the motion of objects. Explore the forces at work when pulling against a cart, and pushing a refrigerator, crate, or person.
Visit 1-D Kinematics Interactives. Newton's Laws of Motion. Explore relationships pertaining to applied force, friction force, mass, and acceleration with the Force Interactive. Practice your skill of constructing free-body diagrams with the Free Body Diagram Interactive.
Use your smarts about gravity, force, and motion to build rovers to travel over Mars!
Force is just a fancy word for pushing or pulling. If I push on something or pull on it, then I am applying a force to it. Force makes things move or, more accurately, makes things change their motion. Two natural forces that we have experienced are the force of gravity and magnetic forces.
Practice solving for net force, using Newtons second law (F=ma), and relating F=ma to the acceleration equations. In these practice problems we will either use F=ma or our 1D motion acceleration equations to solve force problems.
Check out the next lesson and practice what you’re learning:https://www.khanacademy.org/science/ms-physics/x1baed5db7c1bb50b:movement-and-forces/... Keep going!
This Interactive allows learners to investigate a variety of factors that affect the acceleration of a box pushed across a surface, The amount of applied force, the mass, and the friction can be altered.
