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A contact force is any force that occurs as a result of two objects making contact with each other. Contact forces are ubiquitous and are responsible for most visible interactions between macroscopic collections of matter.
Apr 11, 2024 · Learn what contact force is, how it occurs when two objects are in direct contact, and see examples of different types of contact forces. Find out how to distinguish contact force from non-contact force and how to measure it.
Contact force is a force that is applied by objects in contact with each other. Learn about the types of contact force, such as frictional force, applied force and normal force, with examples and interactive videos.
- 6 min
Feb 3, 2023 · Learn the difference between contact and non-contact forces, and how to calculate them using Newton's Law. See examples of contact forces such as friction, tension, and normal force, and non-contact forces such as gravity, electric, and magnetic force.
The 'normal' force is a type of 'contact' force. What Sal doesn't clarify in this video is that the contact force is ANY force that results when two things (and their atoms and molecules) touch each other. It's a general term that can refer to normal force, friction, collision force, tension, etc.
- 7 min
- Sal Khan
- Yes! You just re-invented famous Rutherford experiment! http://www.youtube.com/watch?v=5pZj0u_XMbc
- well, it depends: 1. If you are on earth´s surface you´ll just pass through earth till you´ll get fused into earth mantel and PAM PAM PAM you are o...
- The word "Normal" really just means "perpendicular to a surface". The "normal force", as you are using the term, is referring to the force that a s...
- Yes. That is why it is unsafe to spacewalk without a tether as a simple push will send you floating away forever (because there is no friction or a...
- Let's just take out the tilt and say the block is moving at 5 m/s to the left, on a collision course with the stationary block. Now think of Newton...
- wow; cool question. My answer is this; 'it depends on how you define touch'. and I encourage you to have a go at producing your own definition This...
- Every molecule is made of combinations of atoms and the atoms are made of combinations of both positive and negative charges. The interaction of th...
- That is wrong. Gravity and normal are not a third law pair because they act on the same object. Third law pairs act on different objects. They also...
- Correct, provided you are standing on a surface capable of providing an equal and opposite reaction force to your weight, without collapsing.
Jan 25, 2023 · Learn what contact forces are and how they act between objects in close contact. Explore the types of contact forces such as friction, muscular, normal, tension and air resistance with examples and diagrams.
Contact forces are forces that act between two objects that are physically touching each other. Learn about reaction force, tension, friction and air resistance with examples and diagrams.
