Radio tagging of animals is a way to save many endangered animal species. How do scientists use radio tagging to help them save animals?

Scientists can track the movements of the endangered animals.

Radio tags keep the predators of the tagged animals away from them.

Scientists can study the movements of the animals’ predators.

Radio tags act as bait for the prey of these endangered animals.

Which characteristic below describe the term pitch?

This changes as the frequency of the wave changes and can be described as high or low.

Compare the sounds produced by wave A and wave B. The human ear would hear

wave A as a louder sound than wave b

wave B has a louder and higher pitched sound than wave A.

wave A as a higher pitched sound than wave B.

wave A and B with the same pitch, but wave A as louder.

A boy is standing next to a radio. As he moves away from the radio, which would MOST LIKELY occur?

a decrease in sound intensity, with respect to the observer.

an increase in the speed of sound wave particles

an increase in sound intensity, with respect to the observer

a decrease in the speed of sound wave particles.

Midpoint Review Unit 3

Authored by Jennifer Easom

Science

8th Grade

NGSS covered

Used 126+ times

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20 questions

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MULTIPLE CHOICE QUESTION

30 sec • 5 pts

As you move from left to right across the electromagnetic spectrum in the image, the wavelength becomes

shorter

lower

taller

longer

Tags

NGSS.MS-PS4-1

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

It seems like everyone has a cell phone these days. Sounds, images, and the written word can all instantly be sent using this technology. How do cell phones send information from one person to another?

Sound waves are sent through overhead cables.

The signals are sent through underground cables.

The signals are sent through communication satellites.

Sound waves are sent through the air.

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

What is the relationship between the wavelength of a wave and its energy?

They are inversely proportional.

They are directly proportional.

The energy is always greater.

The wavelength is always greater.

Tags

NGSS.HS-PS4-1

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Sound waves travel fastest through

steel

air

vaccum

water

Tags

NGSS.MS-PS4-2

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Choose the correct term for the highlighted box.

compression

rarefaction

wavelength

amplitude

Tags

NGSS.MS-PS4-1

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Choose the correct term for the highlighted box.

compression

rarefaction

wavelength

amplitude

Tags

NGSS.MS-PS4-1

MULTIPLE CHOICE QUESTION

30 sec • 5 pts

Choose the correct term for the highlighted box.

amplitude

wavelength

trough

crest

Tags

NGSS.MS-PS4-1

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Midpoint Review Unit 3

As you move from left to right across the electromagnetic spectrum in the image, the wavelength becomes

It seems like everyone has a cell phone these days. Sounds, images, and the written word can all instantly be sent using this technology. How do cell phones send information from one person to another?

What is the relationship between the wavelength of a wave and its energy?

Sound waves travel fastest through

Choose the correct term for the highlighted box.

Choose the correct term for the highlighted box.

Choose the correct term for the highlighted box.

Choose the correct term for the highlighted box.

Which letter represents the greatest energy?

Which letter represents the second greatest energy?

Access all questions and much more by creating a free account

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