* Tension Force: This is the force that exists within a stretched object, like an elastic band. It's a pulling force that acts along the length of the object, trying to restore it to its original shape.
* Elasticity: Elastic bands are made of materials that exhibit elasticity. This means they can stretch and return to their original shape when the force is removed.
Here's how it works:
1. Pulling: When you pull on an elastic band, you apply an external force.
2. Stretching: The elastic band stretches due to its elasticity.
3. Tension Force: As the band stretches, an internal tension force develops within it. This tension force opposes the force you're applying, trying to pull the band back to its original length.
4. Equilibrium: You continue pulling until the tension force in the band equals the force you're applying, reaching a point of equilibrium.
In addition to tension force, there are other minor forces at play:
* Friction: There might be a tiny bit of friction between the elastic band and your fingers as you pull.
* Gravity: The weight of the elastic band itself will also contribute a very small downward force.
However, the dominant force you use to pull an elastic band is tension force.
