https://padlet.com/lai_mei_kien/Phenomena_2S Work on the case study assigned to your group and answer the questions in the workbook. en-us 2022-01-18 14:22:19 UTC 2025-12-19 04:53:01 UTC hello@padlet.com https://padlet.net/icons/png/1f680.png kieralee https://padlet.com/lai_mei_kien/Phenomena_2S/wish/2010191145 page 25

1. when the patient sucks on the straw, some air is removed from it. the air pressure inside the straw is lower than the surrounding atmospheric pressure. the higher atmospheric pressure pushes the liquid up the straw and into the patient’s mouth

2. air can enter through the hole in the straw, therefore the air pressure inside the straw is the same as the atmospheric pressure 


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case study c:
there is lower air pressure in the syringe. the blood pressure is higher. hence, when the syringe is pulled back, the higher blood pressure pushes the air back, allowing the blood to enter the syringe.]]> 2022-01-25 02:49:35 UTC https://padlet.com/lai_mei_kien/Phenomena_2S/wish/2010191145 https://padlet.com/lai_mei_kien/Phenomena_2S/wish/2010193398 Pg 25
Q1
When the suction cup is pushed, the amount of air between the suction cup and the surface decreases. The air pressure between the suction cup and the surface is lower than the atmospheric pressure. The higher atmospheric pressure holds the suction cup in place on the surface.
Q2
Force exerted on the suction cup, air pressure between the suction cup and the surface, atmospheric pressure.
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Q2
When one wants to hang up a poster on a glass window or to pick up a sheet of glass

]]> 2022-01-25 02:51:27 UTC https://padlet.com/lai_mei_kien/Phenomena_2S/wish/2010193398 hiya_vikas_desai_2024 https://padlet.com/lai_mei_kien/Phenomena_2S/wish/2010198112 q1 - the air pressure within the suction cup is lower than the air pressure outside the suction cup, thus the atmospheric pressure will hold the suction cup in place.
q2 - the material of the suction cup/ the force exerted on the suction cup/ the material of the surface. when more force is exerted on the suction cup, there will be lesser air pressure within the suction cup, so the difference between the air pressure within the suction cup and the air pressure within the surroundings so the suction cup will stay fixed on the surface. ]]> 2022-01-25 02:55:23 UTC https://padlet.com/lai_mei_kien/Phenomena_2S/wish/2010198112 christy_su_weixi_2024 https://padlet.com/lai_mei_kien/Phenomena_2S/wish/2010199568 1. When a patient uses the straw to drink, the air pressure inside the straw decreases and it becomes lower than the surrounding atmospheric pressure. The higher atmospheric pressure pushes the liquid up the straw and into the patient’s mouth . 

2. When the patient sucks on the straw, air flows in and out of the hole so the pressure in the straw cannot decrease, therefore the atmospheric pressure will not be higher than the air pressure inside the straw thus the atmospheric pressure cannot push the liquid up the straw and into the patient’s mouth. ]]> 2022-01-25 02:56:36 UTC https://padlet.com/lai_mei_kien/Phenomena_2S/wish/2010199568 janelle_teo_yu_jie_2024 https://padlet.com/lai_mei_kien/Phenomena_2S/wish/2010200441 1) so that the submarines won't get crushed by a higher water pressure at a greater depth in the water, for research to get back to the scientists 
2) waterproof - to be in the water 
strong - withstand higher pressure at greater depths 
durable - last longer in the water ]]> 2022-01-25 02:57:21 UTC https://padlet.com/lai_mei_kien/Phenomena_2S/wish/2010200441 sarah_jane_chin_min_en_2024 https://padlet.com/lai_mei_kien/Phenomena_2S/wish/2010201190 1. (a) Force and area of contact
    (b) The greatest amount of pressure is exerted on the toes. 
    (c) The toes have a smaller area of contact over which a great weight is exerted by the wearer, resulting in the greatest pressure exerted on the toes.

2. When the toes get sore from withstanding the weight the wearer exerts, the shoes can be converted to flat-heeled shoes, increasing the area of contract the wearer’s weight is spread over, decreasing the pressure exerted on her toes.]]> 2022-01-25 02:58:02 UTC https://padlet.com/lai_mei_kien/Phenomena_2S/wish/2010201190 alicia_joy_long_huiyi_2024 https://padlet.com/lai_mei_kien/Phenomena_2S/wish/2010207153 Q1. As the submarine goes deeper, there is a larger column of water exerting a greater force on the submarine and since pressure =  force / area, with a constant surface area of the submarine in contact with the water, the pressure increases. If the submarine could not withstand the water pressure, the difference in water pressure would. cause it to be crushed to a pulp.
Q2. Durability/strength, be waterproof for example, Material Formed of millions of hollow glass microspheres suspended in an epoxy resin, syntactic foam, a flotation material that can stand up to the incredible pressures in the deep ocean.]]> 2022-01-25 03:02:30 UTC https://padlet.com/lai_mei_kien/Phenomena_2S/wish/2010207153 antora_shahreen_hasan_2024 https://padlet.com/lai_mei_kien/Phenomena_2S/wish/2010209616 1a) Area of contact, Amount of force exerted
1c) there is a smaller surface area of the toes in contact with the ground and the body weight is weighing down on the tip of the toes while walking
2) When the feet are sore, the shoe can become more area of contact with the ground and the feet will be less sore]]> 2022-01-25 03:04:31 UTC https://padlet.com/lai_mei_kien/Phenomena_2S/wish/2010209616