Question

На всех парусах Задание 2 / 5 Воспользуйтесь текстом «Лайнер-гигант, который плавает на энергии ветра», расположенным справа. Для ответа на вопрос отметьте нужные варианты ответа. Продолжая анализировать возможности этого судна, вы можете обратить внимание на то, что максимальная скорость его движения не очень велика. Вы знаете, что кроме силы ветра, за счёт которой будет двигаться корабль, есть и другие силы, действующие на корабль. Какие из этих сил будут препятствовать более быстрому движению судна? Отметьте все верные варианты ответа. Выталкивающая сила. Сила тяжести. Сила сопротивления воды. Сила сопротивления воздуха. Действие магнитного поля Земли.

Answer 1

Ответ:

Объяснение:

Сила тяжести.

Сила сопротивления воды.

Сила сопротивления воздуха.

Answer 2

Forces Affecting the Speed of a Sailing Ship

When analyzing the possibilities of a sailing ship, it is important to consider the various forces that can affect its speed. In addition to the force of the wind, there are other forces that act on the ship and can hinder its movement. Let's examine the forces mentioned in the question and determine which ones can impede the ship's speed:

1. Buoyant Force: The buoyant force is the force exerted by a fluid (in this case, water) on an object immersed in it. It acts in the opposite direction to the force of gravity and helps support the ship. However, it does not directly affect the ship's speed, so it is not a force that would hinder faster movement. Therefore, the buoyant force is not one of the forces that would impede the ship's speed.

2. Force of Gravity: The force of gravity is the force that attracts objects towards the center of the Earth. It acts vertically downwards and affects the ship's weight. While the force of gravity does not directly impede the ship's speed, it does contribute to the ship's overall mass, which can affect its acceleration and maneuverability. However, it is not a force that directly opposes the ship's forward motion. Therefore, the force of gravity is not one of the forces that would impede the ship's speed.

3. Water Resistance: When a ship moves through water, it experiences a resistance force known as water resistance or drag. This force opposes the motion of the ship and can significantly affect its speed. The shape and design of the ship's hull, as well as its speed, can influence the amount of water resistance it encounters. Therefore, the force of water resistance is one of the forces that would impede the ship's speed.

4. Air Resistance: Just like water resistance, air resistance is a force that opposes the motion of an object moving through the air. In the case of a sailing ship, air resistance can act on the ship's sails, mast, and other exposed surfaces. The shape and design of the ship, as well as the wind speed, can affect the amount of air resistance it encounters. Therefore, the force of air resistance is one of the forces that would impede the ship's speed.

5. Magnetic Field of the Earth: The magnetic field of the Earth is a force that acts on objects with magnetic properties. While it is true that the Earth's magnetic field can affect the ship's compass and navigation systems, it does not directly impede the ship's speed. Therefore, the magnetic field of the Earth is not one of the forces that would impede the ship's speed.

In summary, the forces that would impede the faster movement of a sailing ship are the force of water resistance and the force of air resistance. These forces act in opposition to the ship's forward motion and can significantly affect its speed. The buoyant force, force of gravity, and magnetic field of the Earth do not directly impede the ship's speed.