Unit 3 (THE OCEANS) UPDATED ACTUAL
Exam Questions and CORRECT Answers
____________ is the measure of the average velocity of the atoms or molecules in a substance. -
CORRECT ANSWER - temperature
Temperature is measured in _______ - CORRECT ANSWER - degrees
True or False: A water molecule is polar because the opposite ends have opposite charges. -
CORRECT ANSWER - True
Water Molecules are made of ________ hydrogen and ________ oxygen atoms. - CORRECT
ANSWER - two;one
Calories are used as a measurement of _________. - CORRECT ANSWER - heat.
__________ is the total kinetic energy of the atoms and molecules in a substance. - CORRECT
ANSWER - heat
Match the temperature scale to the correct average ocean temperature. - CORRECT
ANSWER - Kelvin - 290
Celsius - 17
Fahrenheit - 63
The surface of the ocean is heated by _______. The heat is transfered to lower water depths by
the action of wind and currents, and by _________. - CORRECT ANSWER - solar
radiation; molecular conduction
Which of the following describe light refraction in water? - CORRECT ANSWER - Light
is bent as it moves from air to water due to a change in the speed of light.
, Light refraction causes an object to appear in a different location than it really is.
Match the three ways energy may be transmitted. - CORRECT ANSWER - Conduction:
Energy is passed from molecule to adjacent molecule
Convection: Heated fluid moves and carries heat to a new location.
Radiation: Heat is directly transmitted from its source.
Match the ways in which heat is transmitted to their descriptions. - CORRECT
ANSWER - Conduction: A metal pan becomes hot after placing it on a hot stove.
Convection: Hot air rises and cold air sinks.
Radiation: The air in front of a burning fire is warm.
Modern ocean-going vessels use ________ to measure the depth of water beneath the ship. -
CORRECT ANSWER - echo sounders
Water molecules from a crystalline lattice when liquid waters turns to _________ - CORRECT
ANSWER - ice
The average velocity of sound in seawater is __________ m/s as opposed to 334 m/s in dry air. -
CORRECT ANSWER - 1500
Heat ___________ is the quantity of heat required to produce a unit change of temperature in a
material. - CORRECT ANSWER - capacity
Exam Questions and CORRECT Answers
____________ is the measure of the average velocity of the atoms or molecules in a substance. -
CORRECT ANSWER - temperature
Temperature is measured in _______ - CORRECT ANSWER - degrees
True or False: A water molecule is polar because the opposite ends have opposite charges. -
CORRECT ANSWER - True
Water Molecules are made of ________ hydrogen and ________ oxygen atoms. - CORRECT
ANSWER - two;one
Calories are used as a measurement of _________. - CORRECT ANSWER - heat.
__________ is the total kinetic energy of the atoms and molecules in a substance. - CORRECT
ANSWER - heat
Match the temperature scale to the correct average ocean temperature. - CORRECT
ANSWER - Kelvin - 290
Celsius - 17
Fahrenheit - 63
The surface of the ocean is heated by _______. The heat is transfered to lower water depths by
the action of wind and currents, and by _________. - CORRECT ANSWER - solar
radiation; molecular conduction
Which of the following describe light refraction in water? - CORRECT ANSWER - Light
is bent as it moves from air to water due to a change in the speed of light.
, Light refraction causes an object to appear in a different location than it really is.
Match the three ways energy may be transmitted. - CORRECT ANSWER - Conduction:
Energy is passed from molecule to adjacent molecule
Convection: Heated fluid moves and carries heat to a new location.
Radiation: Heat is directly transmitted from its source.
Match the ways in which heat is transmitted to their descriptions. - CORRECT
ANSWER - Conduction: A metal pan becomes hot after placing it on a hot stove.
Convection: Hot air rises and cold air sinks.
Radiation: The air in front of a burning fire is warm.
Modern ocean-going vessels use ________ to measure the depth of water beneath the ship. -
CORRECT ANSWER - echo sounders
Water molecules from a crystalline lattice when liquid waters turns to _________ - CORRECT
ANSWER - ice
The average velocity of sound in seawater is __________ m/s as opposed to 334 m/s in dry air. -
CORRECT ANSWER - 1500
Heat ___________ is the quantity of heat required to produce a unit change of temperature in a
material. - CORRECT ANSWER - capacity
