HWEO Vocab Quiz #2

What is an echo?

• A sound that is absorbed by a surface

• A sound that is reflected off a surface and heard again

• A sound that travels in a straight line

• A sound that is only heard once

What does pitch refer to in sound?

• How loud a sound is

• How soft a sound is

• How high or low a sound seems to a listener

• How fast a sound travels

What does volume measure in sound?

• The speed of sound

• How high or low a sound is

• How loud or soft a sound is

• The distance sound travels

What is amplitude in relation to sound waves?

• The speed of a wave

• The height of a wave, which determines how loud the sound is

• The length of a wave

• The color of a wave

What does frequency measure in sound waves?

• The speed of sound

• The number of times a sound wave vibrates in a set amount of time

• The distance between two points of a wave

• The height of a wave

What is air?

• A solid object

• A liquid substance

• The invisible gas that surrounds the Earth

• A type of sound wave

What is an oscilloscope used for?

• Measuring temperature

• Showing what sound waves look like

• Calculating speed

• Measuring distance

What is a model in scientific terms?

• A real object

• A pretend version of something that scientists use

• A type of sound wave

• A measurement tool

What is a vacuum?

• A space filled with air

• An empty space without any air

• A type of sound wave

• A measurement of sound

What is a sound wave?

• A straight line

• The way sounds travel in an up-and-down pattern

• A type of light wave

• A solid object