Questions (I did not look at the official answers before I answered them!)
Why does the needle on the meter move when gas particles are introduced into the box?
My answer – The meter moves according to how many and much collisions occur against the wall of the box.
Official answer – The gas particles collide with all of the walls of the container. The wall on the right moves outwards and moves the needle. What does the meter measure?
My answer – number and force of collisions of particles against the wall of the box
Official answer – Pressure, The gas particles colliding with the walls make a force on the walls. The walls have a surface area so the quantity measured is pressure, p = F/ A. 1) How do the particles create a pressure?
Pressure is created by particles colliding against a certain area with a certain force. 2) If you increase the temperature, how does the movement of the particles change?
The movement of the particles get faster as there is more kinetic energy. 3) If you increase the temperature, how does the number of collisions per second change?
It increases, once again, due to the increase in kinetic energy. 4) If you increase the temperature, what does this do to the pressure?
It increases the pressure because more collisions (i.e. greater force) occur with the same area. Thank you SooHyun SooHyun Lee
11P
Bangkok Patana School
Why does the needle on the meter move when gas particles are introduced into the box?
My answer – The meter moves according to how many and much collisions occur against the wall of the box.
Official answer – The gas particles collide with all of the walls of the container. The wall on the right moves outwards and moves the needle. What does the meter measure?
My answer – number and force of collisions of particles against the wall of the box
Official answer – Pressure, The gas particles colliding with the walls make a force on the walls. The walls have a surface area so the quantity measured is pressure, p = F/ A. 1) How do the particles create a pressure?
Pressure is created by particles colliding against a certain area with a certain force. 2) If you increase the temperature, how does the movement of the particles change?
The movement of the particles get faster as there is more kinetic energy. 3) If you increase the temperature, how does the number of collisions per second change?
It increases, once again, due to the increase in kinetic energy. 4) If you increase the temperature, what does this do to the pressure?
It increases the pressure because more collisions (i.e. greater force) occur with the same area. Thank you SooHyun SooHyun Lee
11P
Bangkok Patana School
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