What is a light ray?

Choose 1 answer

A line of light that is travelling in a given direction.

To block a path which something is travelling along.

Being on the other or further side when seen from a certain viewpoint.

A dark shape produced by an object coming between rays of light and a surface.

Fluorescent lights are very bright, tube-shaped electric lights, often used in offices.

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What does obstruct mean?

Choose 1 answer

A line of light that is travelling in a given direction.

A dark shape produced by an object coming between rays of light and a surface.

Fluorescent lights are very bright, tube-shaped electric lights, often used in offices.

To block a path which something is travelling along.

Being on the other or further side when seen from a certain viewpoint.

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What does opposite mean?

Choose 1 answer

To block a path which something is travelling along.

A line of light that is travelling in a given direction.

Fluorescent lights are very bright, tube-shaped electric lights, often used in offices.

A dark shape produced by an object coming between rays of light and a surface.

Being on the other or further side when seen from a certain viewpoint.

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What does fluorescent mean?

Choose 1 answer

A line of light that is travelling in a given direction.

A dark shape produced by an object coming between rays of light and a surface.

To block a path which something is travelling along.

Being on the other or further side when seen from a certain viewpoint.

Fluorescent lights are very bright, tube-shaped electric lights, often used in offices.

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What is a shadow?

Choose 1 answer

Fluorescent lights are very bright, tube-shaped electric lights, often used in offices.

A line of light that is travelling in a given direction.

A dark shape produced by an object coming between rays of light and a surface.

Being on the other or further side when seen from a certain viewpoint.

To block a path which something is travelling along.

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Answer incorrect

Look at the slide below to work out the answer.