Eco

Eco

Assessment

Interactive Video

Science, Physics

4th - 9th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

The transcript explains the concept of echoes, typically associated with sound, but applicable to any wave energy form. It highlights how astronomers observe light echoes when light from energetic events reflects off dust or gas clouds.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is an echo in the context of sound?

A sound that is absorbed by a surface

A sound that is heard again after being reflected

A sound that is heard before the original sound

A sound that is produced by a musical instrument

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following can produce an echo?

Only light waves

Only sound waves

Only water waves

Any type of energy in wave form

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a light echo?

Light that is absorbed by a black hole

Light that is emitted by a star

Light that travels in a straight line

Light that is reflected off clouds of dust or gas

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In what context do astronomers use the term 'light echoes'?

When light is refracted through a prism

When light is emitted by galaxies

When light is reflected off dust or gas clouds

When light is absorbed by planets

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which phenomenon involves light being reflected off clouds of dust or gas?

Sound echo

Light echo

Heat echo

Water echo

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