test of water Flashcards

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?

A

Arctic

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?

A

Global Winds

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?

A

Wind

25
Q

Which way does the energy and the water molecules (particles) move in a wave

A

The energy moves forward, but the molecules/particles move in circles

26
Q

What can be the cause of a tsunami?

A

Underwater landslides
Underwater earthquakes
Underwater volcanoes

27
Q

Where do most tsunamis occur?

A

The Pacific Ocean Ring of Fire

28
Q

What are the two types of extreme tides?

A

Springtide and neap tide

29
Q

What is Spring Tide?

A

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
Q

What is Neap Tide

A

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