6.4 Colours of light [Mastery check]#

Which are the three primary colours?

• Red, yellow, blue.

• Red, green, blue.

• Yellow, blue, violet.

• Red, green, indigo

The primary colours of light ........... (can choose more than one answer)

• are able to made all the other colours.

• are able to made 256 different colours.

• can be made by mixing any other colours of light.

• are different from the primary colours in paints.

• are colours of light that are brightest in a rainbow.

Name the colour produced when red light and blue light are added together: ​ (a)   ​

• magenta
• yellow
• cyan
• violet

Name the colour produced when red light and green light are added together: ...........................................

Name the colour produced when red, green and blue are added together

• white

• black

• cyan

• magenta

A stage light uses a white lamp. What colour of light will be seen when a yellow filter is used?

• red

• green

• yellow

A stage light uses a white lamp. What colour of light will be seen when an orange filter is used?

• red

• green

• orange

A green ball appears green. What two colours of light could each be shinning on the green ball?

​ (a)   and ​ (b)  

• green
• white
• blue
• red
• magenta

A blue ball appears black. What two colours of light could each be shinning on the blue ball?

​ (a)   or ​ (b)  

• green
• red
• blue
• white

A T-shirt looks red. What could explain this?

Choose three answers.

• The T-shirt is red and is seen in white light.

• The T-shirt is red and is seen in red light.

• The T-shirt is blue and is seen in green light.

• The T-shirt is white and is seen in red light.

• The T-shirt is yellow and is seen in blue light.