Angular and Linear Quantities, Torque, and Simple Machines

A set of vocabulary flashcards covering rotational and linear motion, torque, simple machines, and related formulas.

Angular displacement

The amount of turning involved in rotational or circular motion.

Angular velocity

The speed of rotation.

Angular acceleration

The change in rotational speed.

Displacement (Linear)

The distance moved by an object.

Velocity (Linear)

The speed of an object with direction.

Acceleration (Linear)

The change in speed of an object.

Lever

A rod balanced on a fixed point, used to help lift heavy objects; examples include a seesaw, crowbar, and scissors.

Torque

The force that causes an object to rotate around an axis.

Translational motion

Motion that happens when an object moves from one place to another in a straight or curved path.

Simple Machines

Mechanical devices that include the pulley, lever, wheel and axle, wedge, inclined plane, and screw.

Work (Formula)

The product of force and distance, expressed as $W = F \cdot d$.

Torque (Formula)

Calculated as $\tau = r \times F$, where $\tau$ is torque, $r$ is the radius or distance from the axis, and $F$ is the applied force.

Principle of Torque Ease

The farther the force is applied from the center, the easier the object rotates.