Newtonian Mechanics and Forces

A vector quantity is defined by both a magnitude (size) and a direction. Since forces have both, they are classified as vectors.

In physics, a force is defined as a push or a pull upon an object resulting from the object's interaction with another object.

Using a ramp (an inclined plane) allows you to move an object to a higher elevation using less force than lifting it vertically, because the distance is increased.

The principle of simple machines involves a trade-off: you can use less force, but you must apply that force over a longer distance to perform the same amount of work.

A movable pulley is attached to the load itself. It allows the user to lift a load with less force, though it does not change the direction of the pull.

Velocity is defined as the speed of an object in a specific direction. Speed is a scalar quantity, while velocity is a vector quantity.

A vector is a physical quantity that has both magnitude (size) and direction. Examples include velocity, displacement, and force.

When an object travels at varying speeds, we calculate its average speed by dividing the total distance by the total time. This provides a single value representing the overall rate of motion.

Speed is defined as the distance traveled per unit of time. It measures how quickly an object changes its position.

Motion is defined as a change in an object's position relative to a reference point over time.

Position describes the location of an object relative to a reference point.

Pitch is directly related to the frequency of vibration; faster vibrations produce higher-pitched sounds, while slower vibrations produce lower-pitched sounds.

Kinetic energy is the energy an object possesses due to its motion.

Potential energy is stored energy based on an object's position or configuration, such as height above the ground.

Since pressure is force divided by area (P = F/A), increasing the area over which the same force is applied will decrease the pressure.