Lesson 14 Icing Injuries Assessment

Last updated 5 months ago

5 questions

Note from the author:

To care for and prevent injury, athletes often use plastic wrap to attach bags of ice cubes directly on top of their skin for 20 minutes a day after a practice or a workout. See the image for an example.

Part of the way through the 20 minutes, the ice begins to melt and drip. At 20 minutes, doctors recommend removing the ice pack because the skin gets very cold and could become damaged. Two athletic trainers, Mr. Santil and Mr. Danford, were wondering: how does an ice pack work to cool down the skin and muscles? They collected some data, shown in the table below.

Instructions

To care for and prevent injury, athletes often use plastic wrap to attach bags of ice cubes directly on top of their skin for 20 minutes a day after a practice or a workout. See the image for an example.

Part of the way through the 20 minutes, the ice begins to melt and drip. At 20 minutes, doctors recommend removing the ice pack because the skin gets very cold and could become damaged. Two athletic trainers, Mr. Santil and Mr. Danford, were wondering: how does an ice pack work to cool down the skin and muscles? They collected some data, shown in the table below.

Required

Lesson 14 Icing Injuries Assessment

Last updated 5 months ago

5 questions

Note from the author:

To care for and prevent injury, athletes often use plastic wrap to attach bags of ice cubes directly on top of their skin for 20 minutes a day after a practice or a workout. See the image for an example.

Part of the way through the 20 minutes, the ice begins to melt and drip. At 20 minutes, doctors recommend removing the ice pack because the skin gets very cold and could become damaged. Two athletic trainers, Mr. Santil and Mr. Danford, were wondering: how does an ice pack work to cool down the skin and muscles? They collected some data, shown in the table below.

Instructions

To care for and prevent injury, athletes often use plastic wrap to attach bags of ice cubes directly on top of their skin for 20 minutes a day after a practice or a workout. See the image for an example.

Part of the way through the 20 minutes, the ice begins to melt and drip. At 20 minutes, doctors recommend removing the ice pack because the skin gets very cold and could become damaged. Two athletic trainers, Mr. Santil and Mr. Danford, were wondering: how does an ice pack work to cool down the skin and muscles? They collected some data, shown in the table below.

Required

The ice pack is a system and the person’s ankle is another system. Energy is transferred between the two systems. Mr. Santil and Mr. Danford argued over the data about how the systems (ice pack and skin) work.
Here is what they said:
Mr. Santil: The cold from the ice pack moves out of the ice pack and enters the skin, causing it to cool down.
Mr. Danford: Heat from the body goes into the ice pack and causes the ice to warm up and melt.
Who do you think is correct, Mr. Santil or Mr. Danford?

Required

What part of the systems do these data not show that would help you decide between Mr. Santil and Mr. Danford's claims?

Required

Show why you picked Mr. Santil and Mr. Danford's claim by drawing a model zooming in at the point where the ice pack and skin touch that explains how the contact between the ice pack and skin causes the skin to cool down and/or causes the ice to melt. In your model, make sure to include these parts:
particles for the ice pack
particles for the bag
particles for the skin,
how the particles are moving in each system based on their temperatures, and
show which direction energy is moving
You may use words to explain your ideas underneath your models.

Required

Change your model to show what would be different after 20 minutes.
In your model, make sure to include these components:
particles for the ice pack
particles for the bag
particles for the skin,
how the particles are moving in each system based on their temperatures, and
how energy is entering or leaving the systems.

Required

Lesson 14 Icing Injuries Assessment

Lesson 14 Icing Injuries Assessment

What part of the systems do these data not show that would help you decide between Mr. Santil and Mr. Danford's claims?

How would your model change if the athlete were standing outside in the sun on a hot (100℉) day?

What part of the systems do these data not show that would help you decide between Mr. Santil and Mr. Danford's claims?

How would your model change if the athlete were standing outside in the sun on a hot (100℉) day?