Teacher and Mentor Interview Questions and Answers

Density is a measure of how much mass is contained in a given volume.

• Density is calculated by dividing the mass of an object by its volume.

• Common units for density include g/cm^3 or kg/m^3.

• For example, water has a density of 1 g/cm^3, while gold has a density of 19.3 g/cm^3.

Refraction is the bending of light as it passes from one medium to another.

• Refraction occurs when light travels from one medium to another with a different density.

• The speed of light changes as it moves through different mediums, causing it to bend.

• Examples of refraction include the bending of light in water or a prism splitting white light into its colors.