Behavior of Waves Standard 4 Obj. 1

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What is your name? *

What is your period?

1. What does the wavelength of a wave indicate? *

loudness

energy

intensity

Crest

Use the figures below to answer the next 3 questions. All pictures are drawn to scale.

2. Which one has the greatest amplitude? *

Figure 1

Figure 2

Figure 3

Figure 4

3. Which one has the highest frequency? *

Figure 1

Figure 2

Figure 3

Figure 4

4. Which one has the longest wavelength? *

Figure 1

Figure 2

Figure 3

Figure 4

5. What happens to the noise of a sound wave as the amplitude increases? *

more complex pitches develop

remains the same

decreases

increases

Use the chart below to answer the next 2 questions

6. What is the relationship between the speed of sound and the density of the substance it travels through? *

sound travels fastest in the gas mediums

the less dense the medium, the faster sound travels

the density of the medium does not affect the speed of sound

the more dense the medium, the faster it travels

7. What will happen to sound waves traveling through the air when they reach water? *

they will speed up

they will slow down

they will not change

they will stop

8. How are sound and light waves different? *

sound has wavelengths, light does not

sound can be measured, light cannot

light travels through space, sound cannot

light travels more slowly than sound

Use this picture to help you answer the next question

9. Why does the spoon in the glass of water look like it is bent? *

light creates shadows that confuse the eye

light travels at different speeds through water and air

water is reflecting the image of the spoon in air

water cannot carry light waves, only reflect it

Use this information to answer the next two questions

Two students wish to measure the speed of sound in water. They go to one end of a swimming pool and strike a bell with a hammer underwater. They time how long it takes for the sound to reach the other end of the pool. This table shows their data:

10. Why did the students do 10 trials instead of 1? *

their experiment was not well designed

all scientific tests must be done at least 10 times

the speed of sound varies when waves go through the water

the data are more trustworthy when more tests are done

11. How could these data be best analyzed? *

do a graph of the data over time

measure the length of a sound wave

find the mathematical average of the trials

look up information about sound in the dictionary

12. You estimate how far away a lightning bold strikes by counting the seconds between seeing the lightning and hearing the thunder. Why does this work? *

sound waves travel more slowly through air than light waves

sound waves travel slowly through the ear canal before they can be heard

sound waves cannot travel through empty space, they need a medium

sound waves spread out from a source in circles and light does not

13. An experiment in the 1700's tried to measure the speed of light with a clock by timing how long it took light to travel from one lighthouse to another. The experiment failed. The speed of light was eventually measured when astronomers measured the time it took light to travel from a planet to Earth. How did technology limit the first experiment? *

light cannot be measured as it travels through the Earth's atmosphere

light travels too fast for a clock to measure in short distances

a clock will slow down when traveling at the speed of light

a clock cannot be used unless the Earth's rotation is calculated

14. After conducting several experiments, Isaac Newton concluded that light is a combination of different wavelengths. Which evidence supports his conclusion? *

light is white

light is found all over the universe

light separates into colors in a prism

light can travel very rapidly through space

15. How are a raindrop and a glass prism alike? *

they are shaped like a pyramid

they are made of water and air

they fall from the sky

they separate white light into colors

Use this picture to answer the next 3 questions

16. Which correctly matches the type of heat transfer with the letter in the diagram above? *

A=convection, B=conduction, C= radiation

A=conduction, B=radiation, C=convection

A=translation, B=radiation, C=conduction

A= radiation, B=conduction, C=translation

17. How is the heat transfer process at "B" different than at "A"? *

at "B" the hot water is rising and cold water is sinking

at "B the two objects must be touching for heat transfer to occur

at "B the heat from the fire is traveling in electromagnetic waves

at "B" the other two types of heat transfer are not working

18. What is another example of the process of convection? *

hot air rising to take a balloon into the sky

burning yourself on a hot stove burner

sitting out in the sun and getting a sunburn

using electricity to turn a computer on

19. What does white light traveling through a prism show? *

light moves extremely fast

light can go through glass

light is composed of different wavelengths

light is found in all places in the known universe

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