Drag the item from the item bank to its corresponding match.
Consider each of the experiments described here. Match the correct conclusion to each experiment.
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A scientist wanted to test the relationship between pressure, force, and area to confirm that pressure equals force/area. He discovered that if the area was increased during the experiment, the pressure decreased. Assume that many trials were conducted and the force was kept constant. Based on the experiment, what relationship exists between area and pressure?
Students used a potato gun to illustrate one of the gas laws. As they decreased the volume of the air in between two pieces of potato, the pressure exerted by the gas increased. This increase in pressure eventually forces the potato out of a tube.
In a physics experiment, students collected a sample of gas at standard temperature and pressure. The volume of the gas is doubled at constant temperature with no gas leaks. Is there a change in pressure?
Experiment 1: As area increases, pressure decreases.
Experiment 2: As volume decreases, pressure increases.
Experiment 3: No change in pressure when volume is doubled at constant temperature.
To determine the relationship between area and pressure in the first experiment, we need to understand the concept of pressure. Pressure is defined as the force applied per unit area. If the force is kept constant and the area is increased, the pressure will decrease. This can be explained using the equation for pressure: Pressure = Force / Area. Since the force is constant and the area is increased, the denominator (area) becomes larger, resulting in a smaller value for pressure.
In the second experiment with the potato gun, as the volume of the air between the two pieces of potato decreases, the pressure exerted by the gas increases. This can be explained by Boyle's Law, which states that when the volume of a gas decreases, the pressure increases if the temperature remains constant. This increase in pressure eventually forces the potato out of the tube.
In the third experiment, where the volume of the gas is doubled at constant temperature with no gas leaks, there will be no change in pressure. According to Boyle's Law, when the volume of a gas is doubled at constant temperature, the pressure remains constant.
So, to match the correct conclusions to each experiment:
- Experiment 1: Based on the experiment, the relationship between area and pressure is that when the area is increased, the pressure decreases.
- Experiment 2: The increase in pressure as the volume decreases eventually forces the potato out of the tube.
- Experiment 3: There is no change in pressure when the volume of gas is doubled at constant temperature.
1. Experiment: Testing the relationship between pressure, force, and area.
Conclusion: If the area is increased during the experiment while keeping the force constant, the pressure decreases.
2. Experiment: Illustrating one of the gas laws using a potato gun.
Conclusion: As the volume of the air between two pieces of potato is decreased, the pressure exerted by the gas increases. This increase in pressure eventually forces the potato out of a tube.
3. Experiment: Doubling the volume of gas at constant temperature with no leaks.
Conclusion: There is no change in pressure when the volume of gas is doubled at constant temperature with no leaks.