* Speed is a measure of how fast something is moving. It tells us how much distance an object covers in a given amount of time.
* Acceleration is a measure of how quickly an object's velocity changes. It tells us how much the speed or direction of motion changes over time.
Think of it this way:
* Speed: If you're driving at a constant 60 miles per hour, you have a constant speed.
* Acceleration: If you're accelerating from 0 to 60 mph, you're changing your speed.
Constant acceleration means that the speed is changing at a steady rate.
Examples:
* Constant Acceleration: A car speeding up at a rate of 10 miles per hour every second.
* Constant Speed: A car driving at a steady 60 miles per hour on a straight road.
Key Takeaways:
* Speed is about how fast something is moving.
* Acceleration is about how much the speed is changing.
* You can have constant speed without acceleration (like driving on a straight road at a steady speed).
* You can have acceleration even if you are not moving (like when you're sitting in a car that's taking off from a stop).