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WorksheetsOCPS Heat and Temperature (Advanced)
Total questions: 6
Worksheet time: 4mins
At room temperature, the metal mercury is a liquid. How could the mercury be changed into a solid?
by increasing the density of the mercury system
by decreasing the density of the mercury system
by removing heat from the mercury system
by adding heat to the mercury system
In the lab, Kendra placed a metal stirring rod into a glass beaker of boiling water that was sitting on a stand above an open flame. Kendra leaned the metal rod against the side of the beaker. About 15 minutes later, she touched the rod and noticed it was very hot. Which of these statements best explains what caused the rod to get hot?
Heat was radiated from the flame to the metal rod.
Heat was conducted from the flame to the metal rod.
Heat was convected from the glass beaker to the metal stirring rod.
Heat was conducted from the boiling water to the metal stirring rod.
Mr. Mothra likes to collect river rocks on his daily walks. One chilly morning, he picks up a beautiful piece of rock near the bank of the river, and places it in his pocket. If the river rock is a brisk 10°C, and Mr. Mothra has a body temperature of 37°C, which of the following best describes the immediate transfer of energy taking place in Mr. Mothra's pocket?
Thermal energy will flow from Mr. Mothra to the rock.
Thermal energy will flow from the rock to Mr. Mothra.
Thermal energy will only flow from Mr. Mothra directly into the air.
Thermal energy will only flow into the air, and not to Mr. Mothra.
A glass of water is at room temperature in an isolated system. What will happen if one ice cube is added to the system?
Heat will be removed from the system, causing the liquid water to decrease in temperature but retain its state.
Heat will be removed from the system, causing the liquid water to decrease in temperature and change state.
Heat will be added to the system, causing the liquid water to increase in temperature and change state.
Heat will be added to the system, causing the liquid water to increase in temperature but retain its state.
A substance of mass 2.0 kilograms is originally in the solid state. The graph below represents the temperature of the substance as heat is added to it. During which interval is the average kinetic energy of the molecules of the substance unchanged?
BC
CD
AB
AC
The temperature of two samples of rubbing alcohol is taken. Sample 1 has a temperature of 20ºC and Sample 2 has a temperature of 30ºC. Which statement best describes the reason for the different temperatures of the two samples?
The particles in Sample 1 have a larger mass than the particles in Sample 2.
The particles in Sample 1 have more kinetic energy than the particles in Sample 2.
The particles in Sample 2 have a larger mass than the particles in Sample 1.
The particles in Sample 2 have more kinetic energy than the particles in Sample 1.
