1st Quarter Extra Credit

How are earthquakes, sound, and light waves alike?

• They transmit energy.

• They carry matter

• They can be seen

• They travel in space

What is the relationship between eyesight and light?

• Light shines on all objects, allowing people to see them.

• Light shines through all objects, allowing people to see them.

• Light enters the eye before striking an object, allowing people to see the object.

• Light reflects off an object and then enters the eye, allowing people to see the object.

Which BEST explains the relationship between the electromagnetic spectrum and sight?

• Visible light is the part of the EM spectrum that can be seen with the eye.

• Ultraviolet light is the part of the EMS that can be seen with the eye

• Visible light and infrared light are the parts of the EMS that can be seen with the eye.

• Ultraviolet light and infrared light are the parts of the EMS that can be seen with the eye.

Which BEST explains the relationship between the speed of sound and the medium through which it passes?

• Sound travels faster in solids because of the increased distance between solid particles.

• Sound travels faster in air because of the decreased distance between air particles.

• Sound travels slower in air because of the increased distance between air particles.

• Sound travels slower in solids because of the decreased distance between solid particles.

Stephon adds thicker strings to his guitar. What does that do?

• It prevents the guitar from using air particles to transfer the sound.

• It changes the number of strings on the guitar.

• It changes the vibrations made by the guitar.

• It prevents the guitar from making sounds.

During the day, the sand at the beach is very warm. At night, it is cooler. Why does this occur?

• The sand reflects the sun's energy during the day, causing it to become warmer.

• The sand absorbs the sun's energy during the day, causing it to become warmer.

• The sand scatters the sun's energy during the day, causing it to become warmer.

• The sand refracts the sun's energy during the day, causing it to become warmer.

This is the highest point on a transverse wave.

• crest

• trough

• amplitude

• frequency

This is the lowest point on a transverse wave.

• crest

• trough

• amplitude

• frequency

The measure of a wave from rest to crest or from rest to trough.

• crest

• trough

• amplitude

• frequency

The measure from the crest of one transverse wave to the crest of the next wave (or trough to trough). The faster of these = greater energy.

• crest

• trough

• amplitude

• frequency