Physics in Daily Life and Motion

Practice flashcards covering fundamental physics concepts, safety principles, and types of motion from lecture notes.

Inertia

The tendency of an object to resist changes in its state of motion, as explained by Newton's First Law of Motion.

Impulse

The product of force and time ($J = F \times \text{Δ}t$), used to reduce impact force by increasing the time over which motion stops.

Friction

The force that opposes motion between two surfaces that touch each other, necessary for activities such as walking and driving.

Balance

The concept of stability influenced by the body's center of gravity; lowering the center of gravity increases stability.

Machines

Tools designed using physics principles to help people perform work with less effort or force.

Work

In physics, this occurs when a force causes an object to move.

Power

A measure of how quickly work is done.

Projectile Motion

The curved path followed by an object, such as a basketball, when it is shot toward a hoop.

Newton's Third Law of Motion

The law stating that every action has an equal and opposite reaction.

Translational Motion

Motion that occurs when an object moves from one position to another, where every part of the object moves the same distance in the same direction.

Linear Distance

The total path traveled by an object, measured in meters ($m$).

Linear Displacement

The change in position from the starting point to the ending point, including both magnitude and direction, measured in meters ($m$).

Linear Speed

A scalar quantity describing how fast an object moves, measured in meters per second ($m/s$).

Linear Velocity

A vector quantity that describes an object's speed with direction, measured in meters per second ($m/s$).

Linear Acceleration

The rate of change in velocity, measured in meters per second squared ($m/s^2$).

Rotational Motion

Motion that occurs when an object turns, spins, or rotates around a fixed axis.

Angular Displacement

The measurement of the angle through which an object rotates, typically measured in degrees ($^{\circ}$) or radians ($rad$).

Angular Velocity

A measure of how quickly an object rotates, measured in radians per second ($rad/s$).

Angular Acceleration

A measure of how quickly angular velocity changes over time, measured in radians per second squared ($rad/s^2$).

Period ($T$)

The time needed for a rotating object to complete one full revolution.

Frequency ($f$)

The number of revolutions an object completes per second.

Biomechanics

The study of movement showing that human motion is often a combination of linear and angular motions.

Ergonomics

The science of designing products, workplaces, and systems to fit the needs and abilities of people to improve safety and efficiency.