Final

Question 1

Explain how the wavelength and frequency of a wave related to the amount of energy in a wave

Answer 1

The higher the energy the shorter the wavelength the higher the frequency.

Question 2

You are standing in a a large empty building as you talk you can head your voice return to you after a second or two. What property of waves is being demonstrated. Explain your answer

Answer 2

reflection and the sound waves bounce off the wall coming back to you

Question 3

What property of the sun controls the orbits of the planets

Answer 3

Gravity

Question 4

The inner four planets are described by what?

Answer 4

Terrestrial planets

Question 5

Place the planets in the correct order

Answer 5

Mercury Venus earth mars Jupiter Saturn Uranus Neptune Pluto

Question 6

The orbits of most planets are what?

Answer 6

Elliptical

Question 7

Objects in galaxies are held together by what?

Answer 7

The gravitational pull of objects within them

Question 8

What occurs during a lunar eclipse?

Answer 8

The moon passes through the earths shadow.

Question 9

What phase of the moon does a lunar eclipse occur during?

Answer 9

Full moon

Question 10

Using the numbers on the diagram place the phases in the order according to the numbers

Answer 10

1(third quarter) 2(waxing crescent) 3(new moon) 4( waning gibbous) 5(full moon) 6(waning crescent) 7( first quarter) 8( waxing gibbous)

Question 11

When the illuminated portion of the moon gets smaller and smaller every night the moon is said to be….

Answer 11

Waning

Question 12

When the illuminated portion of the moon get larger and larger every night the moon is said to be….

Answer 12

Waxing

Question 13

The average daily temperature in the northern hemisphere is coldest when

Answer 13

the suns rays hit the northern hemisphere at an indirect angle

Question 14

Because the suns rays strike different parts of the earth at different times we have….

Answer 14

Seasons

Question 15

When the earths axis is tilted neither toward nor away away from the sun we have..

Answer 15

Vernal and autumnal equinoxes

Question 16

At the start of what season is the sun lowest in the sky?

Answer 16

Winter

Question 17

What is true about the moon rotation?

Answer 17

The moon rotates once for each revolution

Question 18

When the northern hemisphere is experiencing winter the southern is experiencing…..

Answer 18

Summer

Question 19

A scientist observes the same craters on the same surface side of the moon because….

Answer 19

The moon rotates and revolves at the same speed

Question 20

Darkest part of the shadow..

Answer 20

Umbra

Question 21

Lighter part of the shadow…

Answer 21

Penumbra

Question 22

Why do we not have eclipses every new and full moon?

Answer 22

The moons orbit is tilted 5°

Question 23

How many tides occur in a 24 hour time period?

Answer 23

4

Question 24

Tides are caused by….

Answer 24

The gravitational pull or the earth and moon

Question 25

How many high tides occur in 24 hours?

Answer 25

2

Question 26

What types of tides occur when high tides are at their highest and low tides are at their lowest?

Answer 26

Neap tides

Question 27

As earth revolves around the sun earths axis...

Answer 27

Remains at the same angle pointed in the same direction

Question 28

The seasons are the result of the (blank) tilt of the earths (blank) as it orbits the sun

Answer 28

23.5°, axis

Question 29

What type of picture is pictured in the diagram?

Answer 29

Study 2 pictures on camera roll

Question 30

Give an example of a transverse wave and describe its parts

Answer 30

A wave in the water is an example of a transverse wave and its parts include, crest, trough, wavelength, amplitude, and resting point

Question 31

Give an example of a compressional wave and describe its parts

Answer 31

An example of a compressional wave is a sound wave and it’s parts are, rarefraction, compression, and wave length

Question 32

The sun shines through a rain drop creating a rainbow. What property of light wave is being represented? Explain your answer.

Answer 32

Refraction is being demonstrated because when the light shines through the rain drop is refracts off the rain drop bending the light and shining the light through the color prism creating a rainbow.

Question 33

Analog waves can carry more data than digital waves? True or False

Answer 33

False

Question 34

Analog waves are better for transmitting data because they do not degrade? True or false

Answer 34

True

Question 35

Describe the difference between a mechanical and electromagnetic wave

Answer 35

Electromagnetic waves do not need a medium to travel through while mechanical ones do

Question 36

Wave equations

Answer 36

Wavelength=speed divided by frequency Frequency= speed divided by wavelength Speed= wavelength x frequency Speed= m/s Frequency= hz Wavelength= meters

Question 37

X Ray is to...

Answer 37

Imaging the body

Question 38

Visible light is to...

Answer 38

Vision

Question 39

Radio waves is to...

Answer 39

Transmitting tv signals

Question 40

Gamma rays are used for....

Answer 40

Radiation therapy

Question 41

Infared light....

Answer 41

Thermal imaging

Question 42

Microwaves.....

Answer 42

WiFi

Question 43

Ultraviolet...

Answer 43

Sterelazation of medical tools.