Question

2. Выберите из приведенных ниже примеров явления, которые экспериментальными фактами или научными гипотезами. экспериментальны научная гипотеза А)Теплый воздух легче холодного В) Максимальна скорость мотоциклиста больше максимальной скорости С) В отсутствии силы трения тело может двигаться бесконечно D) Существование темной материи​

Answer 1

Ответ:

М) отсутствии силы трения тело может двигаться бесконечно

Answer 2

Examples of Phenomena Supported by Experimental Facts or Scientific Hypotheses

When considering the examples provided, we can identify the following phenomena that are supported by either experimental facts or scientific hypotheses:

A) Warm air is lighter than cold air. This phenomenon is supported by experimental facts. According to the ideal gas law, the density of a gas decreases as its temperature increases, assuming constant pressure and volume. This means that warm air, which has a higher temperature, is less dense and therefore lighter than cold air.

B) The maximum speed of a motorcyclist is greater than the maximum speed of a cyclist. This statement is not supported by experimental facts or scientific hypotheses. The maximum speed of a motorcyclist or a cyclist depends on various factors, such as the power of the vehicle, aerodynamics, road conditions, and the skill of the rider. It is not a general rule that the maximum speed of a motorcyclist is always greater than that of a cyclist.

C) In the absence of friction, an object can move indefinitely. This phenomenon is supported by scientific hypotheses. In a frictionless environment, an object in motion will continue to move indefinitely due to the absence of external forces acting upon it. This concept is often used in idealized physics scenarios to simplify calculations and understand the fundamental principles of motion.

D) The existence of dark matter. This phenomenon is supported by scientific hypotheses. Dark matter is a hypothetical form of matter that does not interact with light or other electromagnetic radiation, making it invisible to direct observation. Its existence is inferred from its gravitational effects on visible matter and the structure of the universe. Although dark matter has not been directly detected, its presence is supported by various astrophysical observations and theoretical models.

Please note that while the examples provided are categorized based on their support from experimental facts or scientific hypotheses, it is important to consult reliable scientific sources for more detailed and accurate information on each specific phenomenon.