Understanding Acceleration for Grade 9

Front

Acceleration

Back

of change of velocity

Front

Formula for acceleration

Back

latex="a = \frac{\Delta v}{\Delta t}">

Front

Back

in velocity

Front

Back

in time

Front

Units of acceleration

Back

per second squared (m/s²)

Front

Example: Car speeds up from 0 to 20 m/s in 5 s

Back

latex="a = \frac{20 \, \text{m/s} - 0 \, \text{m/s}}{5 \, \text{s}} = 4 \, \text{m/s}^2">

Front

Deceleration

Back

acceleration

Front

Average acceleration

Back

change in velocity divided by total time

Front

Real-world example: Roller coaster

Back

changes in speed and direction

Front

Velocity vs. time graph

Back

represents acceleration