Physics (1.5 LIGHT AND COLOUR)

Question 1

The primary colors of light are:

Answer 1

red, green, blue

Question 2

Red light and green light produce:

Answer 2

yellow light

Question 3

Green and blue light produce:

Answer 3

cyan light

Question 4

Red and blue light produce:

Answer 4

magenta light

Question 5

Why are they called primary colors?

Answer 5

It is not possible to make red, green, or blue light using any combination of other colors.

Question 6

If you mix all three primary colours of light with the same intensity, you get__________

Answer 6

white light

Question 7

Additional of light _________ apply in mixture of pigment.

Answer 7

cannot

Question 8

What are the primary colours of pigment?

Answer 8

cyan, magenta, yellow

Question 9

If you mix all colours of pigment together the pigment looks _________

Answer 9

black

Question 10

It (pigment) acts like a

Answer 10

filter and subtracts the other colours

Question 11

What are used to produce different colours from white light?

Answer 11

Coloured filters

Question 12

If you shine white light through a red filter:

Answer 12

-The filter will only let red light through
-Red light is transmitted, and all the colors are absorbed
-The filter has taken away all the colors except red

Question 13

An object looks white because__________

Answer 13

all of the colors of light are reflected

Question 14

An object looks black because__________

Answer 14

none of the colours are reflected

Question 15

An object looks green because__________

Answer 15

-The green object absorbs all colors in white light except green.
-The green light is reflected into our eyes, and we see a green object