During a 12- hour period, the tides in one area of the Bay of Fundy causes the water level to rise to 6 m above the average sea level and to fall 6 m below average sea level. The depth of the water at low tide is 2m as measured against a pier.
Suppose the water is at average sea level (rest position) at 0:00 hours (midnight) and the tide is coming in. Draw a graph that shows the height of the tide over a 24-hours period. Explain how you obtain the graph???
I really appreciate any help.
To create a graph that shows the height of the tide over a 24-hour period, you can follow these steps:
1. Identify the key points of the tide cycle:
- Low tide: The water level is at 2m below average sea level.
- High tide: The water level rises to 6m above average sea level.
2. Determine the duration of each phase:
- From low tide to high tide: The duration is 12 hours (half of the 24-hour period).
- From high tide to low tide: The duration is also 12 hours.
3. Divide the 24-hour period into two equal parts, representing the first 12 hours and the second 12 hours, respectively.
4. In the first 12-hour period:
- The water level starts at 2m below average sea level (low tide).
- As the tide comes in, the water level gradually rises to reach 6m above average sea level (high tide) at the end of the 12-hour period.
- You can represent this on the graph by drawing a line that starts at 2m below average sea level and gradually slopes upward to 6m above average sea level.
5. In the next 12-hour period:
- The water level starts at 6m above average sea level (high tide).
- As the tide goes out, the water level gradually falls to the low tide level of 2m below average sea level at the end of the 24-hour period.
- You can represent this on the graph by drawing a line that starts at 6m above average sea level and gradually slopes downward to 2m below average sea level.
Combining these two lines will give you the graph of the tide height over the 24-hour period. The graph should show a smooth transition from low tide to high tide, and then back to low tide, forming a symmetric curve.