This content is for my video, so I didn't gather this information from the textbook. I watched Electroboom's video.

Mechanical forces are the forces we see and feel every day, even, if it is why we don't float away from earth, and so on.

Gravity:

Gravity is a mechanical force, it is the force that prevents us from floating into space.

• Definition: The force of attraction between two masses. On Earth, it gives objects weight.

• Daily Life Examples:

  • Objects fall to the ground when dropped.

  • The force that keeps us anchored to the Earth’s surface.

  • The mechanism behind the functioning of scales to measure weight.

Friction:

Friction is the force that resists the motion of two objects in contact.

• Definition: The force that resists the relative motion of two surfaces in contact.

• Daily Life Examples:

  • Walking: Friction between shoes and the ground prevents slipping.

  • Driving: Tires grip the road due to friction, allowing for control and stopping.

  • Writing: Friction between the pen and paper allows for writing.

Tension:

• Definition: The force transmitted through a string, rope, cable, or similar when it is pulled tight by forces acting from opposite ends.

• Daily Life Examples:

  • Playing tug-of-war: The rope transmits tension between teams.

  • Hanging objects: Cables or ropes support the weight of objects like lights or swings.

Normal Force:

Normal force is the force that is applied opposing the force you apply.

• Definition: The perpendicular force exerted by a surface against an object resting on it.

• Daily Life Examples:

  • Sitting on a chair: The chair exerts an upward normal force supporting the person.

  • A book resting on a table: The table provides an upward force to balance the book’s weight.

Applied Force:

• Definition: A force that is applied to an object by a person or another object.

• Daily Life Examples:

  • Pushing a shopping cart: The force exerted by the hands moves the cart.

  • Opening a door: The applied force by hand rotates the door on its hinges.

Elastic Force:

• Definition: The force exerted by an object that can be stretched or compressed and returns to its original shape.

• Daily Life Examples:

  • Stretching a rubber band: The band exerts a force when stretched and returns to its original shape when released.

  • Trampolines: The springs exert elastic force, propelling the jumper upward.