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WorksheetsPHYc - Chapter10 Thermal Properties of Matter
Total questions: 23
Worksheet time: 19mins
What is internal energy of the molecules in the substance?
Kinetic Energy
Potential Energy
Kinetic energy
and
Potential energy
Which energy is directly related to the temperature of a substance?
Potential energy
Kinetic energy
Which energy is directly related to the distance / forces of attraction between the molecules?
Potential energy
Kinetic energy
A substance is heated from point P to point Q. Thermal energy is converted to _____ energy that results in an increase of temperature of the substance.
Potential and Kinetic
Potential
Gravitational
Kinetic
The temperature remain constant from point Q to point R during melting point.
What state is observed during melting point?
solid
liquid
solid + liquid
liquid + gas
During melting point (point Q-R), the molecules gain _____ energy
Potential
Kinetic
Potential & kinetic
During solidification/freezing process (state changes from liquid to solid), there is no change in kinetic energy but there is change in potential energy.
True
False
Blocks of gold are made by pouring hot, molten gold into moulds. The gold cools to its melting point and begin to solidify.
As it solidifies, its temperature
[N12/1/9] & [N17/1/10]
decreases and energy is released from the gold
decreases and no energy is released from the gold
stays constant and energy is released from the gold
stays constant and no energy is released from the gold
Boiling is the process that converts from a liquid to gaseous state, at temperature below boiling point of a substance
True
False
What is meant by the boiling point of a liquid [N13/1/9]
The place in a liquid where both liquid and gas exist together
The place in a liquid where it starts to bubble
The temperature at which it begins to evaporate
The temperature at which it can exist as both liquid and gas
When bubbles are seen forming rapidly in water and the temperature of the water remains constant,
the molecules of the water are moving further apart.
the molecules of the water are moving faster.
the molecules of the water are moving faster and further apart.
During condensation process, the molecules loses potential and kinetic energy, and the negligible intermolecular bonds of the molescules are strengthened, enabling the molecules to come closer together, and the temperature decreases.
True
False
Evaporation can occur at 0°C
True
False
Evaporation is a ___ process
Fast
Slow
During evaporation, thermal energy is absorbed from the surrounding, and the temperature usually ____
decreases
remains constant
increases
Boiling and evaporation are different processes.
Which statement is not correct? [N14/1/8]
Boiling occurs throughout the entire liquid but evaporation only occurs at the surface.
Evaporation can only occur when the temperature of the liquid is high enough.
Evaporation causes the temperature of a liquid to fall.
When a boiling liquid is heated. its temperature remains constant.
When the temperature of the liquid is higher, the rate of evaporation decreases.
True
False
When the surrounding temperature is higher, the rate of evaporation increases
True
False
When the surrounding air is more humid, the rate of evaporation increases.
True
False
When the pressure of the surrounding air is greater, the rate of evaporation increases.
True
False
When the surface area of the liquid is expose, the rate of evaporation increases.
True
False
When the boiling point of the liquid is lower, the rate of evaporation decreases.
True
False
When there is presence of moving air, the rate of evaporation decreases.
True
False
