Electrostatics and Atomic Structure Concepts

The video tutorial introduces electrostatic phenomena, explaining the concept of electric charge and the structure of atoms. It details the components of an atom, including protons, neutrons, and electrons, and discusses how atoms remain neutral. The tutorial explores what happens when atoms lose or gain electrons, leading to charge imbalances. An experiment is conducted to demonstrate electrostatic principles using polythene and perspex rods, illustrating how like charges repel and unlike charges attract.

What does the term 'electrostatic' refer to in the context of electrostatic phenomena?

• Gravitational forces

• Magnetic fields

• Electric charge at rest

• Electric charge in motion

What are the main components of an atom?

• Nucleus and protons

• Nucleus and electrons

• Neutrons and electrons

• Protons and electrons

Which particles in an atom are positively charged?

• Electrons

• Neutrons

• Atoms

• Protons

What happens to an atom when it loses an electron?

• It becomes a neutron

• It becomes positively charged

• It remains neutral

• It becomes negatively charged

What is the result when an atom gains an electron?

• It remains neutral

• It becomes negatively charged

• It becomes positively charged

• It becomes a proton

What materials are needed for the electrostatic experiment described?

• Two wooden rods and three pieces of rubber

• Two metal rods and three pieces of paper

• Two polythene rods and three pieces of cloth

• Two glass rods and three pieces of plastic

What is observed when two polythene rods are rubbed with cloth and brought close to each other?

• They attract each other

• They repel each other

• They remain neutral

• They become positively charged

What happens when a polythene rod is brought near a perspex rod after rubbing?

• They repel each other

• They attract each other

• They remain neutral

• They both become negatively charged

What is the net charge of a polythene rod after being rubbed with a cloth?

• It depends on the cloth

• Neutral

• Negative

• Positive

Why do like charges repel each other?

• Because they have the same charge

• Because they have opposite charges

• Because they are neutral

• Because they are magnetic