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"Will a sinking object be affected by the buoyancy of water?" Sinking and Floating PPT Courseware 3
Imagine you are carrying water in a bucket. The bucket is also filled with water. Does it feel much heavier after leaving the water than when it is in the water? why? Isn't there a force holding the bucket in the water? So is it buoyancy?
Measurement object:
immerse small part in water
mostly immersed in water
All submerged in water
The amount of buoyant force on an object.
Experiment: Measuring the buoyant force on small rocks of different sizes
Experimental requirements:
1. Prepare three stones of different sizes
2. Refer to the measurement method in the previous activity to measure the buoyancy force on the three small stones.
Note: The small stone must be completely immersed in water to read the pulling force.
Experimental conclusion: The buoyancy force experienced by an object in water is related to the volume immersed in water (amount of water displaced). The larger the volume immersed in water (amount of water displaced), the greater the buoyant force it receives.
Knowledge expansion
1. Why can a small wooden board make people float on the water?
2. Why can’t you just lift the pole when you catch a big fish when fishing?
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"Will a sinking object be affected by the buoyancy of water?" PPT on sinking and floating:
"Will a sinking object be affected by the buoyant force of water?" Sinking and Floating PPT Part 1: Exploring New Knowledge Will a sinking object be affected by the buoyant force of water? Think about it: When lifting water from a well, it is also a bucket filled with water. It feels much heavier behind the surface than in the water. What is this...
"Will a sinking object be affected by the buoyancy of water?" Sinking and Floating PPT Courseware 4:
"Will a sinking object be affected by the buoyancy of water?" Sinking and Floating PPT Courseware 4 In life, we will encounter such a situation: when fetching water from a well, the bucket is also filled with water. After leaving the water, it will be larger than before. It feels much heavier in the water. Is this because of the water surface? Is it filled with water?
"Will a sinking object be affected by the buoyancy of water?" Sinking and Floating PPT Courseware 2:
"Will a sinking object be affected by the buoyancy of water?" Sink and Float PPT Courseware 2 Are the two measurements the same size? Where is the pulling force greater and where is the pulling force smaller? Why are there different pulling forces? Tension + Buoyancy = Gravity Experiment: Measure the force exerted on small stones of different sizes...