Grade 9 Ap Physics Test - 2025

Flashcards for Grade 9 Physics Test Review

Position-Time Graph

A graph that shows the position of an object over time. The slope represents velocity.

Labeling a position-time graph

X is time and Y is distance

Velocity

Velocity = Distance/Time

Acceleration

Acceleration = V₂ - V₁/T₂ - T₁

Scalar

A quantity that has magnitude only (ex: speed, distance, time)

Vector

A quantity with both direction and magnitude (ex: acceleration, displacement, velocity)

Inertia

An object stays at rest or in uniform motion unless acted on by an unbalanced force

Braking Distance

Braking Distance = KV²

Factors Affecting Braking Distance

Speed and road surface conditions

Total Stopping Distance

The total distance a vehicle travels when the vehicle comes to a complete stop. (Breaking distance + Reaction Distance)

Reaction Distance

Reaction Distance = (Velocity)(Time)

Velocity-Time Graph

A graph that shows the velocity of an object over time. The slope represents acceleration.

Labeling a Velocity-Time graph

X is Time, Y is Velocity

Factors affecting driving abilities

Reaction time, distraction, fatigue, alcohol, drugs, and weather conditions.