Forces and Their Impact

Forces are interactions between objects that cause them to accelerate or change their motion. They can be classified as contact forces or non-contact forces. Contact forces occur when objects physically touch each other, while non-contact forces act at a distance, such as gravitational forces or electromagnetic forces.

1. Gravity: The force that attracts objects towards each other due to their mass. It is responsible for keeping objects grounded and controlling the motion of celestial bodies.
2. Friction: The force that opposes the relative motion of objects in contact. It can cause objects to slow down or come to a stop.
3. Tension: The force that is transmitted through a string, rope, or cable when it is pulled tight. It is responsible for supporting objects and keeping them from falling.

Newton's first law of motion, also known as the law of inertia, states that an object at rest will remain at rest, and an object in motion will continue moving at a constant velocity, unless acted upon by an external force. This law relates to forces as it explains how forces can cause changes in an object's motion by either starting it, stopping it, or changing its direction.

<p>Forces = Influence that can change the motion of an object Newton's first law of motion = States that an object will remain at rest or in uniform motion in a straight line unless acted upon by an external force Types of forces = Various influences that can change the motion of an object, such as gravity, friction, and magnetic force</p> Signup and view all the answers

<p>Gravity = Pulls objects towards the center of the Earth Friction = Resists the motion of one surface over another Magnetic force = Attracts or repels certain materials</p> Signup and view all the answers

<p>First law = An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force Second law = Force is equal to the change in momentum per change in time Third law = For every action, there is an equal and opposite reaction</p> Signup and view all the answers