for example you are pushing a desk across the room,
the desk is on the ground because of gravity and the friction is formed when you are pushing the desk across the room.
person
brightness_auto
7 Answers
Friction does not exit because of gravity. Friction is a force that opposes the relative motion or tendency of such motion between two surfaces in contact. It exists independently of gravity and can occur in various situations, both in the presence and absence of gravitational forces. Gravity, on the other hand, is a force of attraction between objects with mass and is responsible for the weight of objects on Earth. While gravity can affect how objects interact with surfaces, it is not the cause of friction itself.
Friction is not directly caused by gravity. Friction is a force that resists relative motion between two surfaces in contact. While gravity plays a role in keeping objects in contact with surfaces, friction arises from the interaction between the microscopic irregularities of the surfaces. So, in the example you provided, the friction between the desk and the floor is due to the interaction between their surfaces, not solely because of gravity.
Certainly! Science and technology are closely related fields that have a profound impact on our world. Here's an overview of each:
1. **Science:**
- **Definition:** Science is a systematic and evidence-based approach to understanding the natural world. It involves making observations, formulating hypotheses, conducting experiments or observations, and drawing conclusions based on empirical evidence.
- **Branches:** Science is divided into various branches, including physics, chemistry, biology, astronomy, geology, and many more, each focusing on different aspects of the universe.
2. **Technology:**
- **Definition:** Technology refers to the application of scientific knowledge and principles for practical purposes. It involves the development, design, and use of tools, machines, systems, and processes to solve problems or achieve specific goals.
- **Examples:** Examples of technology include smartphones, computers, medical devices, transportation systems, and renewable energy technologies.
The relationship between science and technology is symbiotic:
- **Science drives technology:** Advances in scientific knowledge often lead to the development of new technologies. For example, discoveries in physics led to the development of electricity and electronics.
- **Technology enables science:** Technology provides the tools and instruments needed for scientific research. Powerful microscopes, telescopes, and computational tools, for instance, enable scientists to explore the natural world at various scales.
Together, science and technology have transformed society in numerous ways, from improving healthcare and communication to addressing environmental challenges and expanding our understanding of the universe. Their continued collaboration is essential for addressing complex global issues and driving innovation in the modern world.