How is pulling up on the flat rubber sheet on the table similar to pulling on the piston in the capped syringe? (Select all that apply.)
-In both cases, there is an enclosed volume of air, and the volume increases slightly.
-In both cases, air is free to enter the enclosed volume, equalizing the pressure on all sides.
-In both cases, the pressure outside the enclosed volume is less than the pressure inside the enclosed volume.
-In both cases, the pressure of the enclosed volume of air decreases.
-In both cases, there is an enclosed volume of air, and the volume increases slightly.
-In both cases, the pressure outside the enclosed volume is less than the pressure inside the enclosed volume.
Well, from a humorous perspective:
- In both cases, you might get strange looks from people who don't understand what you're doing.
- In both cases, if you pull too hard, things might go flying and chaos will ensue.
- In both cases, it's a great way to entertain yourself when you're bored, unless you're at an important meeting or in a hospital, of course.
- In both cases, it's best not to try it with a clown nose on, because it might get stuck or pop off altogether.
But let's now take a look at the actual options provided:
- In both cases, there is an enclosed volume of air, and the volume increases slightly. (Correct)
- In both cases, air is free to enter the enclosed volume, equalizing the pressure on all sides. (Correct)
- In both cases, the pressure outside the enclosed volume is less than the pressure inside the enclosed volume. (Correct, as air tends to flow from areas of higher pressure to lower pressure)
- In both cases, the pressure of the enclosed volume of air decreases. (Incorrect, as pulling on the syringe piston actually increases the pressure inside)
So, in summary, we have some valid similarities between pulling up on the flat rubber sheet and pulling on the piston in the capped syringe. Just be careful not to get too carried away with your experimentation and end up causing a hilarious catastrophe!
The correct answers are:
- In both cases, there is an enclosed volume of air, and the volume increases slightly.
- In both cases, air is free to enter the enclosed volume, equalizing the pressure on all sides.
To determine the similarities between pulling up on the flat rubber sheet on the table and pulling on the piston in the capped syringe, let's analyze each statement:
1. In both cases, there is an enclosed volume of air, and the volume increases slightly.
- In the scenario of pulling up on the rubber sheet, the rubber sheet acts as a boundary, enclosing a volume of air beneath it. When the sheet is pulled up, the volume of the enclosed air increases slightly.
- Similarly, in the case of the capped syringe, the cylinder, piston, and cap form an enclosed volume that contains air or a gas. When the piston is pulled, it creates additional space within the enclosed volume, resulting in a slight increase in volume.
Thus, statement 1 is applicable to both scenarios.
2. In both cases, air is free to enter the enclosed volume, equalizing the pressure on all sides.
- When the rubber sheet is pulled up, the surrounding air is free to enter the enclosed space, equalizing the pressure on all sides. This occurs because the air molecules rush in to occupy the newly created space.
- Similarly, when the piston is pulled in the capped syringe, the movement creates space for air or a gas to enter the enclosed volume. This causes the pressure to equalize on all sides.
Therefore, statement 2 is applicable to both cases.
3. In both cases, the pressure outside the enclosed volume is less than the pressure inside the enclosed volume.
- When pulling up on the rubber sheet, the pressure outside the enclosed space is typically lower than the pressure inside the space. This is because the surrounding air pressure is atmospheric, while the air trapped under the sheet remains at a higher pressure.
- In the case of the capped syringe, when the piston is pulled, it creates a partial vacuum inside the syringe, resulting in lower pressure compared to the external atmosphere.
Hence, statement 3 is applicable to both scenarios.
4. In both cases, the pressure of the enclosed volume of air decreases.
- When the rubber sheet is pulled up, the pressure of the air enclosed beneath it decreases. This is because the volume of space increases, allowing the air molecules to spread out, and thus reducing the pressure.
- Similarly, in the capped syringe, as the piston is pulled, the increased volume leads to a decrease in pressure within the enclosed volume.
Consequently, statement 4 is applicable to both cases as well.
In summary, all four statements apply to both scenarios of pulling up on the flat rubber sheet on the table and pulling on the piston in the capped syringe.