Types of Speed

### The four types of speed.

# Constant Speed

Constant speed is when you keep the same speed over a period of time.

An example is if you stay going 45 miles per hour and stay going 45 miles per hour for 5 minutes.

Constant speed stays constant like clouds stay in the atmosphere. The comparison is that they both stay in the same place and they both stay in the same area.

# Variable Speed

Variable speed is where your speed changes over periods of time.

An example is if you are in a 45 mile zone and then you move into a 35 mile zone.

Variable speed changes like seasons changes. The comparison is that the variable speed is the type of speed that changes, and seasons change throughout the year.

# Average Speed

Average speed is the total distance traveled divided by the total time elapsed(taken up).

An example is if you do 50 miles per hour divided by 2 minutes. If you do it by minutes, then it is 50.

Average speed is like your average in math class. They both take something, then add it up and divide by something.

# Instantaneous Speed

Instantaneous speed is the speed at a specific moment or given time.

An example is when you say, "At 2:50 p.m., I was going 45 miles per hour."

Instantaneous speed is on the exact moment like we get out of school at exactly 3:00 p.m. The comparison is that we get out of school at a given time like the speed at a given time.