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Acceleration. Acceleration. When an object speeds up, slows down, or changes a direction. . Important Facts. Acceleration is measured in m/s/s or m/s 2 acceleration due to gravity is ~10 m/s/s Formula for acceleration is:. Important Facts. Objects can be moving and not accelerating
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Acceleration • When an object speeds up, slows down, or changes a direction.
Important Facts • Acceleration is measured in m/s/s or m/s2 • acceleration due to gravity is ~10 m/s/s • Formula for acceleration is:
Important Facts • Objects can be moving and not accelerating • Slowing down or changing direction is considered acceleration
Acceleration Examples: • A ball speeds up when struck with a bat • An object speeding up as it falls to the ground • A car slowing down at a stop sign • The moon orbiting the Earth (change of direction)
Acceleration Non-examples: • Objects “at rest” • A car on cruise control on a straight highway • A skydiver at terminal velocity