The function of the ball bearing in the wheel is to convert static friction into kinetic friction, as described by option [C]. When a wheel initially starts moving, static friction can impede its motion. Ball bearings reduce this resistance, enabling smoother rotation by facilitating the transitionRead more
The function of the ball bearing in the wheel is to convert static friction into kinetic friction, as described by option [C]. When a wheel initially starts moving, static friction can impede its motion. Ball bearings reduce this resistance, enabling smoother rotation by facilitating the transition from static to kinetic friction. This conversion allows the wheel to move more freely, reducing wear and tear on both the wheel and its axle. By enabling smoother rotation, ball bearings also contribute to energy efficiency and enhance the overall performance of mechanical systems. While they do provide convenience by facilitating smooth motion, their primary function is to reduce frictional resistance and improve the efficiency of rotating mechanisms. Thus, ball bearings play a crucial role in various applications, from automotive and industrial machinery to household appliances, where smooth and efficient motion is essential for optimal performance.
The synchronizing satellite orbits the Earth from West to East, denoted by option [B]. This direction aligns with the Earth's own rotation, aiding in maintaining a fixed position relative to a point on the Earth's surface. This synchronized orbit is vital for numerous applications, particularly commRead more
The synchronizing satellite orbits the Earth from West to East, denoted by option [B]. This direction aligns with the Earth’s own rotation, aiding in maintaining a fixed position relative to a point on the Earth’s surface. This synchronized orbit is vital for numerous applications, particularly communication and navigation systems. By moving in the same direction as the Earth’s rotation, the satellite appears stationary from the perspective of an observer on the ground. This stationary appearance enables uninterrupted communication links and accurate navigation services. Such satellites are often placed in geostationary orbits, where their orbital period matches the Earth’s rotation period, resulting in a fixed position in the sky relative to a specific location on the Earth’s surface. This synchronization is achieved through precise orbital calculations and adjustments, ensuring the satellite’s continued effectiveness in supporting various technological functions essential for modern life.
The reason water droplets do not stick to oily surfaces is primarily due to the lack of adhesive force (option A) between water and oil molecules. Adhesive forces occur between molecules of different substances, causing them to cling together. However, water and oil have different polarities; waterRead more
The reason water droplets do not stick to oily surfaces is primarily due to the lack of adhesive force (option A) between water and oil molecules. Adhesive forces occur between molecules of different substances, causing them to cling together. However, water and oil have different polarities; water is polar, while oil is nonpolar. Therefore, the adhesive forces between water and oil are weak, resulting in poor wetting and minimal surface interaction. This lack of adhesion prevents water droplets from spreading or adhering to oily surfaces. Additionally, the presence of surface tension (option B) in water further inhibits its ability to spread on oily surfaces, contributing to the formation of distinct droplets. While water and oil cannot mix with each other (option C) due to their differing polarities, this does not directly explain the lack of water droplet adhesion to oily surfaces. The relative densities of water and oil (option D) are also not directly related to the adhesion phenomenon described.
The great scientist Archimedes belonged to Greece (option D). He was born in the city-state of Syracuse, which was located on the island of Sicily, in approximately 287 BC. Archimedes made profound contributions to mathematics, physics, engineering, and astronomy during the Hellenistic period in ancRead more
The great scientist Archimedes belonged to Greece (option D). He was born in the city-state of Syracuse, which was located on the island of Sicily, in approximately 287 BC. Archimedes made profound contributions to mathematics, physics, engineering, and astronomy during the Hellenistic period in ancient Greece. His work continues to be studied and revered across the world, and he is considered one of the greatest scientists and mathematicians of antiquity. Archimedes’ discoveries and inventions, such as the principle of buoyancy (Archimedes’ principle) and his development of mathematical concepts like calculus and the lever, have had a lasting impact on science and technology. His legacy endures through his many contributions to our understanding of the natural world and the foundations of modern science.
Any boat will sink if it displaces water equal to its weight (option B). This is according to Archimedes' principle, which states that the buoyant force acting on an object immersed in a fluid is equal to the weight of the fluid displaced by the object. If the boat displaces water equal to its weighRead more
Any boat will sink if it displaces water equal to its weight (option B). This is according to Archimedes’ principle, which states that the buoyant force acting on an object immersed in a fluid is equal to the weight of the fluid displaced by the object. If the boat displaces water equal to its weight, there will be no net upward force to counteract its weight, causing it to sink. Therefore, the critical factor determining whether a boat will sink is the amount of water it displaces compared to its weight. If the displaced water is less than its weight, the boat will sink; if it is greater, the boat will float. Surface area and density are not directly related to a boat’s sinking or floating ability.
The reason for a piece of iron not floating on the surface of water is that the weight of water displaced by iron is less than the weight of iron (option A). According to Archimedes' principle, for an object to float, the buoyant force (weight of water displaced) must equal or exceed the weight of tRead more
The reason for a piece of iron not floating on the surface of water is that the weight of water displaced by iron is less than the weight of iron (option A). According to Archimedes’ principle, for an object to float, the buoyant force (weight of water displaced) must equal or exceed the weight of the object. Since iron is denser than water, it displaces less water than its own weight, causing it to sink. This principle explains why objects with a density greater than that of water, like iron, sink when placed in water. Therefore, the weight of water displaced by the iron determines whether it will float or sink, and in this case, it is less than the weight of the iron, leading to its submersion.
The amount of buoyancy obtained by a solid partially or completely immersed in a liquid depends on the amount of liquid displaced by the solid (option A). This principle is known as Archimedes' principle. It states that the buoyant force acting on an object submerged in a fluid is equal to the weighRead more
The amount of buoyancy obtained by a solid partially or completely immersed in a liquid depends on the amount of liquid displaced by the solid (option A). This principle is known as Archimedes’ principle. It states that the buoyant force acting on an object submerged in a fluid is equal to the weight of the fluid displaced by the object. Therefore, the greater the volume of liquid displaced by the solid, the greater the buoyant force it experiences. The mass and weight of the solid do not directly influence the buoyancy; rather, it is the displacement of the fluid that determines the buoyant force exerted on the solid. Understanding this principle is crucial in various applications, including shipbuilding, submarine design, and the behavior of floating objects in fluids.
Scientists related to buoyancy are Archimedes (option A). Archimedes, an ancient Greek mathematician, physicist, and engineer, formulated the principle of buoyancy, known as Archimedes' principle. This principle explains the upward buoyant force exerted on an object immersed in a fluid, providing inRead more
Scientists related to buoyancy are Archimedes (option A). Archimedes, an ancient Greek mathematician, physicist, and engineer, formulated the principle of buoyancy, known as Archimedes’ principle. This principle explains the upward buoyant force exerted on an object immersed in a fluid, providing insights into the behavior of objects in fluids and buoyancy phenomena. Newton, while a renowned physicist, did not directly contribute to the understanding of buoyancy. Louis Pasteur, a famous French biologist and chemist, made significant contributions to microbiology and chemistry but was not specifically related to buoyancy studies. Therefore, the scientist most closely associated with buoyancy is Archimedes, whose principle remains fundamental in various fields, including fluid mechanics, naval architecture, and engineering.
When an object is completely or partially immersed in a liquid, the apparent reduction in its weight is equal to the weight of the fluid displaced by that object. This principle is known as Archimedes' principle [option B]. It states that the buoyant force exerted on an object submerged in a fluid iRead more
When an object is completely or partially immersed in a liquid, the apparent reduction in its weight is equal to the weight of the fluid displaced by that object. This principle is known as Archimedes’ principle [option B]. It states that the buoyant force exerted on an object submerged in a fluid is equal to the weight of the fluid displaced by the object. This principle, formulated by the ancient Greek mathematician and scientist Archimedes, is fundamental in understanding buoyancy and the behavior of objects in fluids. It explains why objects float or sink in a fluid and provides insights into designing ships, submarines, and other vessels to achieve proper buoyancy and stability. Archimedes’ principle is widely applied in various fields, including naval architecture, engineering, and fluid mechanics, where the interaction between objects and fluids is crucial.
Archimedes' law is related to the Law of flotation (option A). It states that when an object is partially or wholly submerged in a fluid, it experiences an upward buoyant force equal to the weight of the fluid displaced by the object. This principle, formulated by the ancient Greek mathematician andRead more
Archimedes’ law is related to the Law of flotation (option A). It states that when an object is partially or wholly submerged in a fluid, it experiences an upward buoyant force equal to the weight of the fluid displaced by the object. This principle, formulated by the ancient Greek mathematician and scientist Archimedes, explains why objects float or sink in a fluid. It is fundamental in naval architecture, engineering, and various other fields where buoyancy plays a crucial role. The Law of flotation provides insights into designing ships, submarines, and other vessels to ensure they achieve proper buoyancy and stability. Understanding this principle also helps in predicting the behavior of submerged objects and determining their equilibrium positions in fluids, making it an essential concept in fluid mechanics and hydrodynamics. Therefore, Archimedes’ law is closely associated with the Law of flotation.
The function of the ball bearing in the wheel is
The function of the ball bearing in the wheel is to convert static friction into kinetic friction, as described by option [C]. When a wheel initially starts moving, static friction can impede its motion. Ball bearings reduce this resistance, enabling smoother rotation by facilitating the transitionRead more
The function of the ball bearing in the wheel is to convert static friction into kinetic friction, as described by option [C]. When a wheel initially starts moving, static friction can impede its motion. Ball bearings reduce this resistance, enabling smoother rotation by facilitating the transition from static to kinetic friction. This conversion allows the wheel to move more freely, reducing wear and tear on both the wheel and its axle. By enabling smoother rotation, ball bearings also contribute to energy efficiency and enhance the overall performance of mechanical systems. While they do provide convenience by facilitating smooth motion, their primary function is to reduce frictional resistance and improve the efficiency of rotating mechanisms. Thus, ball bearings play a crucial role in various applications, from automotive and industrial machinery to household appliances, where smooth and efficient motion is essential for optimal performance.
See lessThe synchronizing satellite rotates around the Earth in
The synchronizing satellite orbits the Earth from West to East, denoted by option [B]. This direction aligns with the Earth's own rotation, aiding in maintaining a fixed position relative to a point on the Earth's surface. This synchronized orbit is vital for numerous applications, particularly commRead more
The synchronizing satellite orbits the Earth from West to East, denoted by option [B]. This direction aligns with the Earth’s own rotation, aiding in maintaining a fixed position relative to a point on the Earth’s surface. This synchronized orbit is vital for numerous applications, particularly communication and navigation systems. By moving in the same direction as the Earth’s rotation, the satellite appears stationary from the perspective of an observer on the ground. This stationary appearance enables uninterrupted communication links and accurate navigation services. Such satellites are often placed in geostationary orbits, where their orbital period matches the Earth’s rotation period, resulting in a fixed position in the sky relative to a specific location on the Earth’s surface. This synchronization is achieved through precise orbital calculations and adjustments, ensuring the satellite’s continued effectiveness in supporting various technological functions essential for modern life.
See lessThe reason for water droplets not sticking to oily surfaces is
The reason water droplets do not stick to oily surfaces is primarily due to the lack of adhesive force (option A) between water and oil molecules. Adhesive forces occur between molecules of different substances, causing them to cling together. However, water and oil have different polarities; waterRead more
The reason water droplets do not stick to oily surfaces is primarily due to the lack of adhesive force (option A) between water and oil molecules. Adhesive forces occur between molecules of different substances, causing them to cling together. However, water and oil have different polarities; water is polar, while oil is nonpolar. Therefore, the adhesive forces between water and oil are weak, resulting in poor wetting and minimal surface interaction. This lack of adhesion prevents water droplets from spreading or adhering to oily surfaces. Additionally, the presence of surface tension (option B) in water further inhibits its ability to spread on oily surfaces, contributing to the formation of distinct droplets. While water and oil cannot mix with each other (option C) due to their differing polarities, this does not directly explain the lack of water droplet adhesion to oily surfaces. The relative densities of water and oil (option D) are also not directly related to the adhesion phenomenon described.
See lessTo which country did the great scientist Archimedes belong?
The great scientist Archimedes belonged to Greece (option D). He was born in the city-state of Syracuse, which was located on the island of Sicily, in approximately 287 BC. Archimedes made profound contributions to mathematics, physics, engineering, and astronomy during the Hellenistic period in ancRead more
The great scientist Archimedes belonged to Greece (option D). He was born in the city-state of Syracuse, which was located on the island of Sicily, in approximately 287 BC. Archimedes made profound contributions to mathematics, physics, engineering, and astronomy during the Hellenistic period in ancient Greece. His work continues to be studied and revered across the world, and he is considered one of the greatest scientists and mathematicians of antiquity. Archimedes’ discoveries and inventions, such as the principle of buoyancy (Archimedes’ principle) and his development of mathematical concepts like calculus and the lever, have had a lasting impact on science and technology. His legacy endures through his many contributions to our understanding of the natural world and the foundations of modern science.
See lessAny boat will sink if it displaces water
Any boat will sink if it displaces water equal to its weight (option B). This is according to Archimedes' principle, which states that the buoyant force acting on an object immersed in a fluid is equal to the weight of the fluid displaced by the object. If the boat displaces water equal to its weighRead more
Any boat will sink if it displaces water equal to its weight (option B). This is according to Archimedes’ principle, which states that the buoyant force acting on an object immersed in a fluid is equal to the weight of the fluid displaced by the object. If the boat displaces water equal to its weight, there will be no net upward force to counteract its weight, causing it to sink. Therefore, the critical factor determining whether a boat will sink is the amount of water it displaces compared to its weight. If the displaced water is less than its weight, the boat will sink; if it is greater, the boat will float. Surface area and density are not directly related to a boat’s sinking or floating ability.
See lessThe reason for a piece of iron not floating on the surface of water is
The reason for a piece of iron not floating on the surface of water is that the weight of water displaced by iron is less than the weight of iron (option A). According to Archimedes' principle, for an object to float, the buoyant force (weight of water displaced) must equal or exceed the weight of tRead more
The reason for a piece of iron not floating on the surface of water is that the weight of water displaced by iron is less than the weight of iron (option A). According to Archimedes’ principle, for an object to float, the buoyant force (weight of water displaced) must equal or exceed the weight of the object. Since iron is denser than water, it displaces less water than its own weight, causing it to sink. This principle explains why objects with a density greater than that of water, like iron, sink when placed in water. Therefore, the weight of water displaced by the iron determines whether it will float or sink, and in this case, it is less than the weight of the iron, leading to its submersion.
See lessThe amount of buoyancy obtained by a solid partially or completely immersed in a liquid depends on
The amount of buoyancy obtained by a solid partially or completely immersed in a liquid depends on the amount of liquid displaced by the solid (option A). This principle is known as Archimedes' principle. It states that the buoyant force acting on an object submerged in a fluid is equal to the weighRead more
The amount of buoyancy obtained by a solid partially or completely immersed in a liquid depends on the amount of liquid displaced by the solid (option A). This principle is known as Archimedes’ principle. It states that the buoyant force acting on an object submerged in a fluid is equal to the weight of the fluid displaced by the object. Therefore, the greater the volume of liquid displaced by the solid, the greater the buoyant force it experiences. The mass and weight of the solid do not directly influence the buoyancy; rather, it is the displacement of the fluid that determines the buoyant force exerted on the solid. Understanding this principle is crucial in various applications, including shipbuilding, submarine design, and the behavior of floating objects in fluids.
See lessScientists related to buoyancy are
Scientists related to buoyancy are Archimedes (option A). Archimedes, an ancient Greek mathematician, physicist, and engineer, formulated the principle of buoyancy, known as Archimedes' principle. This principle explains the upward buoyant force exerted on an object immersed in a fluid, providing inRead more
Scientists related to buoyancy are Archimedes (option A). Archimedes, an ancient Greek mathematician, physicist, and engineer, formulated the principle of buoyancy, known as Archimedes’ principle. This principle explains the upward buoyant force exerted on an object immersed in a fluid, providing insights into the behavior of objects in fluids and buoyancy phenomena. Newton, while a renowned physicist, did not directly contribute to the understanding of buoyancy. Louis Pasteur, a famous French biologist and chemist, made significant contributions to microbiology and chemistry but was not specifically related to buoyancy studies. Therefore, the scientist most closely associated with buoyancy is Archimedes, whose principle remains fundamental in various fields, including fluid mechanics, naval architecture, and engineering.
See lessWhen an object is completely or partially immersed in a liquid, there is some reduction in its weight. It appears and the apparent reduction in its weight is equal to the weight of the fluid displaced by that object. This principle is
When an object is completely or partially immersed in a liquid, the apparent reduction in its weight is equal to the weight of the fluid displaced by that object. This principle is known as Archimedes' principle [option B]. It states that the buoyant force exerted on an object submerged in a fluid iRead more
When an object is completely or partially immersed in a liquid, the apparent reduction in its weight is equal to the weight of the fluid displaced by that object. This principle is known as Archimedes’ principle [option B]. It states that the buoyant force exerted on an object submerged in a fluid is equal to the weight of the fluid displaced by the object. This principle, formulated by the ancient Greek mathematician and scientist Archimedes, is fundamental in understanding buoyancy and the behavior of objects in fluids. It explains why objects float or sink in a fluid and provides insights into designing ships, submarines, and other vessels to achieve proper buoyancy and stability. Archimedes’ principle is widely applied in various fields, including naval architecture, engineering, and fluid mechanics, where the interaction between objects and fluids is crucial.
See lessArchimedes’ law is related to which of the following?
Archimedes' law is related to the Law of flotation (option A). It states that when an object is partially or wholly submerged in a fluid, it experiences an upward buoyant force equal to the weight of the fluid displaced by the object. This principle, formulated by the ancient Greek mathematician andRead more
Archimedes’ law is related to the Law of flotation (option A). It states that when an object is partially or wholly submerged in a fluid, it experiences an upward buoyant force equal to the weight of the fluid displaced by the object. This principle, formulated by the ancient Greek mathematician and scientist Archimedes, explains why objects float or sink in a fluid. It is fundamental in naval architecture, engineering, and various other fields where buoyancy plays a crucial role. The Law of flotation provides insights into designing ships, submarines, and other vessels to ensure they achieve proper buoyancy and stability. Understanding this principle also helps in predicting the behavior of submerged objects and determining their equilibrium positions in fluids, making it an essential concept in fluid mechanics and hydrodynamics. Therefore, Archimedes’ law is closely associated with the Law of flotation.
See less