Acceleration is
Changing speed:
Acceleration can be positive or negative
Speeding Up – Positive acceleration (+)
Slowing Down – Negative acceleration (-) Units – measured in m/s2
Acceleration is caused by unbalanced forces
Calculating Acceleration: Final Speed – Initial Speed OVER Time
Speed: A way to describe motion.
Average speed - Rate of motion calculated by dividing the distance traveled by the amount of time it takes to travel that distance
Constant speed - Speed that does not change
Instantaneous speed - Speed of an object at any given time
Units: Measured in m/s
Velocity is speed with direction. Calculating velocity is the same as calculating speed (distance/time)
If an object is not moving, a horizontal line is shown on the graph
Distance-Time-Graph:
Time is plotted on the X-axis
Distance is plotted on the Y-axis
Constant motion is shown as a sloped line that is straight
The steeper line indicates the same distance moved but in a shorter given time
Acceleration is shown as a curve
Changing speed:
- Starting
- Stopping
- Speeding up
- Slowing down
- Or changing direction
Acceleration can be positive or negative
Speeding Up – Positive acceleration (+)
Slowing Down – Negative acceleration (-) Units – measured in m/s2
Acceleration is caused by unbalanced forces
Calculating Acceleration: Final Speed – Initial Speed OVER Time
Speed: A way to describe motion.
Average speed - Rate of motion calculated by dividing the distance traveled by the amount of time it takes to travel that distance
Constant speed - Speed that does not change
Instantaneous speed - Speed of an object at any given time
Units: Measured in m/s
Velocity is speed with direction. Calculating velocity is the same as calculating speed (distance/time)
If an object is not moving, a horizontal line is shown on the graph
Distance-Time-Graph:
Time is plotted on the X-axis
Distance is plotted on the Y-axis
Constant motion is shown as a sloped line that is straight
The steeper line indicates the same distance moved but in a shorter given time
Acceleration is shown as a curve