Motion in a Straight Line

Flashcards covering key concepts from a lecture on one-dimensional motion, including displacement, velocity, acceleration, motion graphs, and kinematic equations.

One-dimensional Motion

Motion in a straight line, either horizontal or vertical.

Kinematics

Description of motion (how things move).

Dynamics

Reasons for motion (why things move).

Statics

Absence of motion.

Displacement

Final position minus initial position.

Average Velocity

Displacement divided by time.

Average Acceleration

Change in velocity divided by time.

Average Speed

Distance divided by time.

Instantaneous Velocity

The velocity of an object at a specific moment in time.

Instantaneous Speed

The magnitude of the instantaneous velocity.

Motion Diagram

A visual representation of an object's motion at specific time intervals.

Motion Graphs

Graphs that depict position, velocity, or acceleration as a function of time.

Instantaneous Velocity

The slope of the tangent line on an x-t diagram. (position-time)

Average Velocity

The slope of the secant line on an x-t diagram (position-time)

Displacement

The area under the graph in a v-t diagram.

Kinematic Equations

Equations that describe motion with constant acceleration.

v>0 a<0

positive slowing down

v<0 a>0

negative speeding up

v<0 a<0

negative slowing down

v>0 a>0

positive speeding up