Light Part 1 - Revision

Which one of the following is NOT a characteristic of light?

• Light requires a medium to travel through.

• Light is a Transverse wave.

• Light travels at 300,000,000 m/s

• Light is a Longitudinal wave.

A material that moves energy or light from one substance to another, or from one location to another, or from one surface to another.

• This describes a medium.

• This describes sound.

• This describes light.

• This describes force.

Name 5 different types of light on the Electromagnetic Spectrum (EMS).

Name 3 differences between light and sound.

What is the Electromagnetic Spectrum?

• A type of energy.

• The range of wavelengths or frequencies of light.

• Silly.

• A range of frequencies that can constitute sound.

What does a transverse wave look like?

Why does an object have colour?

• All colours are reflected except the colour we see, which is absorbed by the object.

• All colours are absorbed except the colour we see, which is reflected by the object.

• The atoms of that object emit light with the frequency of that colour.

• The object vibrates at a frequency that matches that of a colour on the EMS.

What is the order of colours in the visible spectrum, from longest wavelength to shortest. G = Green, and so on...

• VIBGYOR

• BIVGROY

• ROYGBIV

What type of mirror/lens is thicker in the middle than at the top and bottom?

What type of mirror/lens is thinner in the middle than at the top and bottom?