test of water Flashcards

(30 cards)

1
Q

What is the DENSITY of a block that has a mass of 79.4 grams and a volume 29.8 cubic cm.? ___________ grams per cubic centimeters (remember: I love density) *

A

2.7

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2
Q

Spring tide occurs during which moon phase(s)? *

A

1st and 3rd quarter

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3
Q

If the beach has HIGH tide at 9am, what time will the next LOW tide happen that day? *

A

9pm

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4
Q

As water gets denser, how does it move? *

expands toward warmer water
gets pushed toward the poles

sinks toward the ocean floor
gets pulled up by evaporation

A

gets pushed toward the poles

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5
Q

Which of the following could cause a DEEP current? *

underwater earthquake
differences in salinity
winds
meteors

A

differences in salinity

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6
Q

What is the name of the ocean closest to Georgia

A

Atlantic

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7
Q

Given that the speed (or velocity) of sound in ocean water is about 1,500 m/s and D= Vt, What would the water depth be if the sound wave takes 10 seconds to return to the ship (so ROUND TRIP=10 seconds)? (Remember the proper units.) *

A

D = 1500 x 5 (7500 meters)

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8
Q

What is the name of the ocean between Africa and Australia

A

India

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9
Q
The average salinity of the oceans is \_\_%
18-23
3-7
3-4
40-41
A

3-4

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10
Q

As you go deeper into the ocean, the water gets colder and water pressure increases
true
false

A

true

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11
Q

The Mariana __________ is the deepest known area on earth
Vally
Trench
Party

A

Trench

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12
Q

What is the main salt that is dissolved in ocean water
magnesium sulfate
sodium chloride
glucose

A

sodium chloride

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13
Q

What are the 5 oceans

A
Pacific
Atlantic
Indian
Southern
Arctic
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14
Q

Which ocean is the biggest?

A

Pacific

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15
Q

Which ocean is the deepest?

A

Pacific

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16
Q

Which ocean is the shallowest?

17
Q

As you go deeper in the ocean, what 4 things happen?

A

Temperature Decreases
Pressure Increases
Density Increases
Salinity Increases

18
Q

what things make ocean water denser?

A

higher) Salinity and

(colder) Temperature

19
Q

What are the features of the ocean floor?

A
Continental Shelf
Continental Slope
Trench
Abyssal Plain
Mid-Ocean ridge
seamount
20
Q

What are surface currents caused by?

21
Q

What are deep currents caused by?

A

Density differences (from temperature and salinity)

22
Q

What are two surface currents?

A
The Gulf Stream (Warm)
California Current (Cold)
23
Q

How do surface currents affect climate?

A

The wind on the oceans blow the air from the current onto the land, cooling it down or warming it up

24
Q

What is the main cause of waves?

25
Which way does the energy and the water molecules (particles) move in a wave
The energy moves forward, but the molecules/particles move in circles
26
What can be the cause of a tsunami?
Underwater landslides Underwater earthquakes Underwater volcanoes
27
Where do most tsunamis occur?
The Pacific Ocean Ring of Fire
28
What are the two types of extreme tides?
Springtide and neap tide
29
What is Spring Tide?
Twice a month, when the high tides are higher than normal and the low tides are lower than normal. Happens during the new moon and full moon
30
What is Neap Tide
Occurs twice a month, where the high tides are lower than normal, and the low tides are higher than normal Happens during the first and third quarter of the moon phases