Explain how objects can get charged by Friction.

When objects come into contact and rub against each other, they can transfer electrons, which causes them to become charged. This is known as charging by friction. Let's take a closer look at how it happens:

1. Understand the concept of electrical charge: Objects become charged because of the movement of electrons. Electrons are negatively charged particles that orbit around atoms.

2. Identify the materials involved: To have charging by friction, you need two objects made of different materials. The properties of these materials will determine which one gains or loses electrons.

3. Determine the electron affinity: Different materials have varying affinities for electrons. Some materials tend to hold onto their electrons tightly and are said to have a high electron affinity, while others may have a lower electron affinity and are more likely to lose electrons.

4. Observe the contact and rubbing process: When two different materials are rubbed together, their surfaces come into contact. As they move against each other, the atoms at the surfaces become rough and irregular. This leads to a greater chance of electron transfer between the materials.

5. Electron transfer: As the objects rub against each other, electrons can move from one material to the other. The material with a higher electron affinity will attract and capture electrons from the material with a lower electron affinity. This causes one object to become positively charged (losing electrons) while the other becomes negatively charged (gaining electrons).

6. Separation of charged objects: Once the charging occurs, the two objects will be electrically attracted to each other due to the opposite charges. If you separate them, they may retain some or all of the charge acquired through friction.

It's important to note that not all materials can be easily charged by friction. Some common examples of materials that commonly exhibit charging by friction are rubber and fur, glass and silk, or plastic and wool.

Understanding the underlying principles of electrical charge, as well as the properties of different materials, is key to comprehending how objects can become charged through friction.