Light

What is light?

• a form of electricity

• a form of energy

• a form of fire

What is the speed of light in air?

• 30 metres per second

• 300 metres per second

• 3,000 metres per second

• 300,000,000 metres per second

Which of the following are luminous?

• 
• 
• 
• 

Light travels in straight lines called rays. What is the name for a bundle of rays?

• a ray-bunch

• a light batch

• a beam

• a raysor

A torchlight creates a divergent beam. Which picture correctly shows the beam from a torchlight?

• A

• B

• C

The diagram shows a beam of light exiting a ray box and then passing through a lens.

Which word best describes the beam AFTER it has passed through the lens?

• parallel

• convergent

• divergent

The experiment in the picture is designed to show that

• light cannot pass through card

• a torchlight produces a parallel beam

• light travels in straight lines