RADIATION

Question 1

What do all bodies (objects) emit and absorb?

Answer 1

Infrared radiation

Question 2

What happens to the quantity of infrared radiation emitted by an object as temperature increases?

Answer 2

The hotter the object, the more infrared radiation it will emit

Question 3

What happens to the type of radiation emitted by an object as temperature increases?

Answer 3

The hotter the body the shorter the wavelength of radiation released (eg. X rays and gamma rays)

Question 4

Fill the gaps.

______ and ______ distribution of any emission depends on temperature.

Answer 4

INTENSITY and WAVELENGTH distribution of any emission depends on temperature

Question 5

What is meant by intensity?

Answer 5

The power transferred per unit area; it is a measure of the energy transferred by a wave