Savvas 7th Grade Thermal Energy and Heat Test
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Last updated over 2 years ago
29 questions
1
The movement of thermal energy from a warmer object to a cooler object is called
The movement of thermal energy from a warmer object to a cooler object is called
1
The transfer of energy by electromagnetic waves is called
The transfer of energy by electromagnetic waves is called
1
Heat transfer occurs
Heat transfer occurs
1
Heated air moves from baseboard heaters to the rest of a room in a process called
Heated air moves from baseboard heaters to the rest of a room in a process called
1
A measure of the average kinetic energy of the individual particles in an object is called
A measure of the average kinetic energy of the individual particles in an object is called
1
Malia burned herself when she picked up a hot iron skillet from the stove. What method of heat transfer caused the burn?
Malia burned herself when she picked up a hot iron skillet from the stove. What method of heat transfer caused the burn?
1
The amount of energy required to raise the temperature of 1 kilogram of a substance by 1 kelvin is called its
The amount of energy required to raise the temperature of 1 kilogram of a substance by 1 kelvin is called its
1
Most of the world uses this temperature scale
Most of the world uses this temperature scale
1
A material that conducts heat poorly is called a(n)
A material that conducts heat poorly is called a(n)
1
Which of these is a good conductor?
Which of these is a good conductor?
1
If two glasses of water are at the same temperature, the average_______ energy of the particles of water in each glass is the same
1
A one-degree change in temperature on the Celsius temperature scale is equal to a one-unit temperature change on the_______ temperature scale.
1
A kite rises high above a hot sandy beach. This is an example of _______ heat transfer.
1
Even though the water in a filled bathtub may be at the same temperature as water in a teacup, the water in the bathtub has more_______ because it contains a greater number of water molecules.
1
Iron has a higher specific heat than silver. If 1 kg of iron and 1 kg of silver absorb equal
amounts of heat, the temperature of the_______ will increase by a greater amount.
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Joints in train tracks are designed with extra space to allow for_______ in hot weather.
1
At absolute zero, the particles in an object have no kinetic energy.
At absolute zero, the particles in an object have no kinetic energy.
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A student lists three temperature measurements: 100°F, 100°C, and 100 K. Of the three measurements, 100 K is the highest temperature.
A student lists three temperature measurements: 100°F, 100°C, and 100 K. Of the three measurements, 100 K is the highest temperature.
1
The more particles an object has at a given temperature, the more thermal energy it has.
The more particles an object has at a given temperature, the more thermal energy it has.
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You feel the warm glow of a bonfire. This is an example of radiation heat transfer.
You feel the warm glow of a bonfire. This is an example of radiation heat transfer.
1
During conduction heat is transferred by the movement of currents within a fluid.
During conduction heat is transferred by the movement of currents within a fluid.
1
Trapped air is a good conductor because it reduces heat transfer.
Trapped air is a good conductor because it reduces heat transfer.
1
As most substances are cooled, they expand.
As most substances are cooled, they expand.
1
On the Fahrenheit temperature scale, water boils at 212 degrees.
On the Fahrenheit temperature scale, water boils at 212 degrees.
1
Specific heat is measured in joules.
Specific heat is measured in joules.
1
Which is a larger change in temperature: a change of 1 Celsius degree or 1 Fahrenheit degree? Explain.
Which is a larger change in temperature: a change of 1 Celsius degree or 1 Fahrenheit degree? Explain.
2
What is the difference between thermal energy and heat?
What is the difference between thermal energy and heat?
3
Explain the role of density in the formation of convection currents.
Explain the role of density in the formation of convection currents.
2
The specific heat of foam is 1200J(kg-K). How much heat does it take to raise the temperature of 1 kg of foam by 2 K? Hint: Remember the Energy Change Formula
The specific heat of foam is 1200J(kg-K). How much heat does it take to raise the temperature of 1 kg of foam by 2 K?
Hint: Remember the Energy Change Formula