Question

Рабочий лист 60. Как тела плавают в воде выталкивающая силаИоНегеш решил исследовать выталкивающую силу водыпроделал эксперимент.1. Погрузил камешек в посуду с водой.Выбери правильный ответ:а) камешек тонет в воде;б) камешек плавает в воде;в) камешек всплывает на поверхность воды.2. Налил в посуду воду того же объёма и удвоил объём воды.Снова погрузил камешек в воду.Выбери правильный ответ:а) камешек тонет в воде;6) камешек плавает в воде;в) камешек всплывает на поверхность воды.3. Изменилась ли в ходе исследования выталкивающая силаВоды, которая действует на камень? Объясни почему?ПОМОГИТЕ ПОЖАЛУЙСТА ​

Answer 1

Ответ:

а) камешек тонет в воде(chara6660)

а) камешек тонет в воде

В ходе исследования выталкивающая сила

воды, которая действует на камень не изменилась. Потому что,если архимедова сила меньше силы тяжести, действующей на тело, то тело тонет.

Объяснение:

Answer 2

The buoyant force and the behavior of objects in water

When an object is placed in water, it experiences a force called the buoyant force. The buoyant force is the upward force exerted by a fluid (in this case, water) on an object immersed in it. The magnitude of the buoyant force is equal to the weight of the fluid displaced by the object.

1. What happens when a stone is placed in water?

When a stone is placed in water, it will sink if its density is greater than that of water. If the stone's density is less than that of water, it will float. If the stone's density is equal to the density of water, it will neither sink nor float but will remain suspended in the water.

2. What happens when the volume of water is doubled?

If the volume of water is doubled while keeping the stone's volume constant, the stone will still experience the same buoyant force. The buoyant force depends on the weight of the fluid displaced, which is equal to the weight of the water that the stone displaces. Doubling the volume of water does not change the weight of the water displaced, so the buoyant force remains the same.

3. Does the buoyant force acting on the stone change during the experiment?

No, the buoyant force acting on the stone does not change during the experiment. The buoyant force depends on the weight of the fluid displaced, which is determined by the volume of the fluid displaced and the density of the fluid. Since the volume of water and the stone's volume remain constant throughout the experiment, the buoyant force remains the same.

In conclusion, the behavior of objects in water is determined by their density compared to that of water. If the object's density is greater than that of water, it will sink. If the object's density is less than that of water, it will float. The buoyant force acting on an object in water depends on the weight of the fluid displaced and remains constant as long as the volume of the fluid displaced and the density of the fluid remain constant.