MPH
Definition Of Mph
MPH stands for miles per hour.
More About MPH
Mph describes the speed or velocity of moving objects.
Examples of MPH
'John is driving at an average speed of 65 mph' implies that John will cover a distance 65 miles every hour if he maintains the same speed.
Video Examples: Mathematics : How to Convert Wheel RPM to MPH
Solved Example on Mph
Ques: Ethan jogged 
miles in 45 minutes. What is his average speed in miles per hour?
Choices:
A. 4 mi/hr
B. 6 mi/hr
C. 5 mi/hr
D. None of the above
Correct Answer: B
Solution:
Step 1: A rate is a ratio of two measurements.
Step 2: Speed is a rate, which is a ratio of distance to time.
Step 3: Distance = mi = 4.5 mi
Step 4: The time taken to jog miles = 45 minutes = 
hours [Convert minutes to hours.]
Step 5: = 0.75 hours [Divide.]
Step 6: The average speed of Ethan = 
Step 7: = 4.5 mi/0.75 hr [Substitute the values.]
Step 8: = 6 mi/hr [Divide.]
Step 9: So, Ethan jogged at an average speed of 6 mi/hr.
Quick Summary
- MPH is a measure of speed.
- It indicates how many miles an object travels in one hour.
- It's calculated by dividing the distance traveled (in miles) by the time taken (in hours).
🍎 Teacher Insights
Use real-world examples, such as car speeds or running speeds, to illustrate the concept of MPH. Encourage students to measure distances and times in practical scenarios to calculate speeds.🎓 Prerequisites
- Basic arithmetic
- Understanding of distance and time
- Fractions and decimals
Check Your Knowledge
Q1: A car travels 120 miles in 2 hours. What is its average speed in mph?
Q2: If a cyclist travels 15 miles in 45 minutes, what is their average speed in mph?
Frequently Asked Questions
Q: How do I convert minutes to hours?
A: Divide the number of minutes by 60. For example, 30 minutes is 30/60 = 0.5 hours.
Q: What is the difference between speed and velocity?
A: Speed is the rate at which an object is moving. Velocity is speed with a direction.