Semester study guide

Question 1

Give an example of a transverse wave and describe the different parts of the wave

Answer 1

Ocean

Question 2

Give an example of a compressional wave and describe the parts of the wave.

Answer 2

Sound

Question 3

The sun shines through a light rain creating a rainbow. What property of light waves is being demonstrated.

Answer 3

Refraction

Question 4

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

Answer 4

Greater energy,higher frequency shorter wavelength

Question 5

You are standing in a large empty building and as you talk you can hear your voice return to you after a second or two.

Answer 5

Reflection

Question 6

What property of the sun controls the orbits of the planets?

Answer 6

Gravity

Question 7

The inner four planets of our solar system are described by what term?

Answer 7

Terrestrial

Question 8

Place the planets in the correct order with the planet closest to the sun rst.

Answer 8

Mercury,Venus ,Earth,Mars,Jupiter,Saturn,Uranus,Neptune,Pluto.

Question 9

The orbits of most planets are what shape?

Answer 9

Elliptical

Question 10

Objects in galaxies are held together by _______

Answer 10

The gravitational attraction of object

Question 11

What occurs during a lunar eclipse?

Answer 11

The moon goes though the earths shadow.

Question 12

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

Answer 12

Full moon

Question 13

When the illuminated part of the moon appears to get smaller each night, the phases are said to be ___.

Answer 13

Waning

Question 14

When the visible part of the moon increases each night, the moon is said to be ___.

Answer 14

Waxing

Question 15

The average daily temperature in the northern hemisphere is coldest when ______.

Answer 15

The sun is pointing away from it

Question 16

Because the sun’s rays strike different parts of the Earth at different angles throughout the year, we have ______.

Answer 16

Seasons

Question 17

The seasons are the result of the ______ tilt of the earths ____ as it orbits the sun

Answer 17

Earth,doesn’t move

Question 18

As the Earth revolves around the sun the Earth’s axis _________.

Answer 18

Doesn’t move

Question 19

When is Earth’s axis tilted neither toward nor away from the sun?

Answer 19

Equinox

Question 20

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

Answer 20

Winter

Question 21

When the northern hemisphere is experiencing winter the souther hemisphere is experiencing____.

Answer 21

Summer

Question 22

A scientist observes the same carters on the surface of the moon everyday because ____.

Answer 22

The moon rotates and revolves at the same speed

Question 23

What is the darkest part of the shadow called?

Answer 23

Umbra

Question 24

What is the lighter part of the shadow called?

Answer 24

Penumbra

Question 25

Why do we not have an eclipse every new and full moon?

Answer 25

The 5 degree tilt of the earths orbit

Question 26

How many tides occur in a 24 hour period?

Answer 26

4

Question 27

Tides are caused by the gravitational pull of the ___.

Answer 27

Moon and sun

Question 28

How many high tides occur in a 24 hour period?

Answer 28

2

Question 29

What type of tides occurs when the high tides are highest and the low tides are lowest?

Answer 29

Spring

Question 30

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

Answer 30

True

Question 31

Analog wave are better for transmitting data because they do not degrade. True or False

Answer 31

False

Question 32

Describe the difference between mechanical and electromagnetic wave

Answer 32

Mechanical waves need a medium to travel and electromagnetic waves don’t

Question 33

frequency X wavelength

Answer 33

=speed

Question 34

speed divided by wavelength

Answer 34

=frequency

Question 35

speed divided by frequency.

Answer 35

= wavelength