Jodhamal Public School TGT Science Teacher Interview Questions, Process, and Tips

Increasing friction can be done by changing the surface texture or adding weight to the object.

• Increase the roughness of the surface in contact

• Add weight to the object

• Increase the force pushing the objects together

• Use materials with higher coefficients of friction

• Increase the surface area in contact

• Use adhesives or suction cups

• Create a vacuum between the surfaces

A variable force is a force that changes in magnitude or direction over time.

• It can be caused by changes in velocity, acceleration, or position.

• Examples include a swinging pendulum, a car accelerating or decelerating, or a rocket changing direction.

• It is important to consider variable forces when calculating motion and energy.

• Variable forces can be represented graphically using force vs. time or force vs. displacement

A covalent bond is a chemical bond formed by the sharing of electrons between two atoms.

• It is a type of chemical bond where two atoms share electrons to achieve stability.

• It is formed between non-metal atoms.

• The shared electrons are attracted to the nuclei of both atoms, holding them together.

• Examples include the bond between hydrogen and oxygen in water (H2O) and the bond between carbon and hydrogen in methane (CH4).