Types of Forces
Friction
Gravity
Friction is a force caused when one object rubs against another. It works in the opposite direction of the main force.
Gravity is a force caused by a large body, such as the Earth. Gravity pulls objects toward the Earth with an acceleration of "g" which equals 9.8 m/s2.
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Nuclear
Nuclear forces are the forces that hold atoms and their particles together.
Electromagnetic
Electromagnetic force is a force associated with electric and magnetic fields.
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Elastic
An elastic force is a force exerted by an object trying to return to its natural length. This is modeled by a spring that has been pulled by an external force, but is pulling back while trying to return to its original length.
Tension
A pulling force that is exerted by a string, cable, or chain on another object.
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Interesting Facts about Force
An object that is accelerating in a circular motion experiences "centripetal" force.
The four fundamental forces are gravity, electromagnetic force, the strong nuclear force, and the weak nuclear force
Torque is a type of force that measures changes in the rotational speed of an object. Torque is an important feature of automobiles, especially trucks.
Drag is a force that decreases the velocity of an object. Thrust is a force that increases the velocity of an object.
Science Quizz Activity
