Light Waves Quiz

What type of wave is light?

• Transverse wave

• Longitudinal wave

• Surface wave

• Torsional wave

What does a light wave transfer from the source?

• Matter

• Energy

• Charge

• Momentum

At what speed does light travel in a vacuum?

• 300,000 km/s

• 150,000 km/s

• 450,000 km/s

• 600,000 km/s

Is the speed of light faster or slower than the speed of sound?

• Faster

• Slower

• The same

• Cannot be determined

When drawing ray diagrams, how should light rays be depicted?

• As curved lines

• As straight lines

• As dotted lines

• With multiple arrows

What must light rays touch according to the rules for drawing ray diagrams showing reflection?

• Only the light source

• Only the object they are reflected from

• Both the light source and the object they are reflected from

• Neither the light source nor the object they are reflected from

What is necessary to show the direction of travel in a light ray diagram?

• A dotted line

• A double arrow

• A single arrow per light ray

• No arrows needed

According to the guidelines for drawing ray diagrams, how should the continuity of light rays be maintained?

• They should have gaps

• They should be broken at intervals

• They should be continuous without gaps

• They should alternate between solid and dotted lines

Where is it best to draw the arrow on a light ray in a ray diagram?

• At the beginning of the ray

• At the end of the ray

• In the middle of the light ray

• No arrow should be drawn

What happens to light when it is absorbed by a surface?

• It changes direction away from the material.

• It goes straight through the material.

• It enters the material and changes speed and direction.

• The energy is used to heat up the material.