Units Of Temperature worksheets
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Lisa has a bottle of water. How can she increase the thermal energy of the water?
She can pour the water into a larger bottle.
She can increase the temperature of the water.
She can place the bottle of water in the refrigerator.
She can divide the water between tow identical containers.
How does the thermal energy of the liquid in the larger beaker compare to the thermal energy of the liquid in the smaller beaker?
The liquid in the larger beaker has less thermal energy than the liquid in the smaller beaker.
The liquid in the larger beaker has more thermal energy than the liquid in the smaller beaker.
The liquid in the larger beaker has the same amount of thermal energy as the liquid in the smaller beaker.
The exact volume of the liquid in each beaker must be known to compare the thermal energy of the liquids.
Which description defines heat?
total thermal energy of an object or substance
change in the temperature of a substance in degrees Celsius
energy transferred between objects at different temperatures
average kinetic energy of the particles that make up a substance
How does heat affect the thermal energy of an object that is colder than the air that surrounds it?
Heat decreases the thermal energy of an object as energy moves to the air.
Heat causes the thermal energy of the object to increase as energy moves from the warmer air to the colder object.
Heat has no effect on thermal energy, but it increases the potential energy of an object.
Heat is not related to thermal energy, so it cannot affect the thermal energy of an object.
Kito puts his spoon into a helping of fresh, hot, mashed potatoes as shown in the picture. Which process takes place when the objects come together?
The temperature of the spoon increases, but its thermal energy does not change.
Energy in the form of heat is transferred by conduction from the warmer mashed potatoes to the cooler spoon.
The thermal energy of both the mashed potates and the spoon increase as the energy in the form of heat is transferred between them.
The average temperature of the spoon does not change.
As energy in the form of heat is added to an ice cube, it begins to melt. What causes melting.
Heat causes the molecules to expanded and forces them apart.
Heat removes thermal energy from the ice cube and causes it to become liquid water.
Adding energy causes the bonds between the hydrogen and oxygen in the ice cube to break.
The transfer of thermal energy to the ice cube causes its molecules to move faster.
Ashton warms a pure, solid substance. He graphs the changes in temperature as shown in the figure below. What is happening as he warms the substance?
molecules move more slowly
molecules move more rapidly
speed of the molecules in not changing
molecules speed up than slow down
Which example illustrate the transfer of energy through RADIATION?
feeling warmth when you sit in a sunny place.
feeling warm air while standing in front of the blower from a heating system.
feeling the warmth of the bricks around a fireplace by touching them with your hand.
feeling warmth on the soles of your feet when you walk along the beach on a sunny day.
Which of these processes is the result of the motion of particles in a gas or liquid?
conduction
convection
insulation
radiation
Emily has a cup of hot cocoa on the counter to cool off so she can drink it safely. She watches the steam rise from the hot cocoa. Which type of thermal energy transfer is occurring as the steam rises into the surrounding air?
conduction
convection
radiation
transformation
A fireplace warming the air in the room is and example of this type of heat transfer?
conduction
convection
radiation
transformation
A toaster warms a bagel for breakfast. What type of thermal energy transfer is occuring?
conduction
convection
radiation
transformation
Mrs. Plata likes to collect river rocks on her daily walk. She picked up a rock and placed it in her pocket. If the rock is 10 degrees Celsius and Mrs. Plata is 31 degrees Celsius, which of the following BEST describes the transfer of energy?
Thermal energy will flow from Mrs. Plata to the rock.
Thermal energy will flow from the rock to Mrs. Plata.
Thermal energy will flow from Mrs. Plata into the air.
Thermal energy will flow into the air and to the rock.
When cold water is added slowly to warm water they will slowly blend over time evenly through the entire liquid. Which BEST explains the reason the heat moves throught the liquid?
The densities of the liquids are similar.
Cold liquids rise and hot liquids sink causing mixing.
Molecules creates chemical bonds the help spread energy.
Heat always moves from higer temperatures to lower temperatures.
How does removing heat change the particles in a closed system?
Particles move apart
Particles slow down and break apart
Particles move faster and potentially change phases
Particles move slower and potentially change phases
At room temperature water is a liquid. How could the water be changed to a solid?
add heat
remove heat
decrease density
increase density
Using the picture. What was the change in the system?
air was added to the system
heat was added to the system
water was added to the system
particles were added to the system
David is warming chocolate on the stove. How is the motion of the particles different after the temperature is increased?
they move faster
they move slower
the move less freely
they vibrate close together
On a hot day the lake water warms and the temperature increases. How does the movement of the particles change?
move slower and farther apart
move slower and closer together
move faster and farther apart
move faster and closer together
An ice cube is placed in a glass of water. Which of the following best explains the heat transfer?
The thermal energy is moving from the ice cube into the water causing the temperature of the water to increase.
The thermal energy is moving from the ice cube into the water causing the temperature of the water to decrease.
The thermal energy is moving from the water to the ice cube causing the temperature of the water to increase.
The thermal energy is moving from the water to the ice cube causing the temperature of the water to decrease.
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