Question 3 (1 point)
During an experiment, a canister filled with hot water was added to a beaker filled with cold water. In which direction did the heat energy move?
a
The heat energy moved from the cold water of the beaker into the hot water of the canister.
b
No heat energy moved, as it all remained in the canister of hot water.
c
The heat energy moved from the hot water of the canister into the cold water of the beaker.
d
Equal amounts of heat energy from each container moved in both directions.
Question 4 (1 point)
The diagram below shows two substances, A and B, which are at different temperatures.
What will happen when substance A is dropped into substance B?
a
Substance A and B will eventually reach the same temperature.
b
Substance A will get even warmer as heat flows into it from substance B.
c
Substance A and B will exchange heat, and they both will reach 25°C.
d
Substance A and B will exchange heat, and they both will reach 50°C.
Question 5 (1 point)
A student wants to show the transfer of heat energy without matter. Which investigation design would best help the student?
a
an investigation of conduction through the movement of particles through a solid
b
an investigation of radiation through electromagnetic waves
c
an investigation of conduction through collisions between particles in space
d
an investigation of radiation through a current in a fluid
b
an investigation of radiation through electromagnetic waves
Question 3: The heat energy moved from the hot water of the canister into the cold water of the beaker. (Option c)
Question 4: Substance A and B will eventually reach the same temperature. (Option a)
Question 5: An investigation of radiation through electromagnetic waves. (Option b)
To answer these questions, we need to understand the concepts of heat energy transfer and the laws of thermodynamics.
Question 3:
In this experiment, a canister filled with hot water is added to a beaker filled with cold water. The heat energy always moves from a higher temperature region to a lower temperature region. So, the heat energy will move from the hot water in the canister to the cold water in the beaker. Therefore, the correct answer is option C - "The heat energy moved from the hot water of the canister into the cold water of the beaker."
Question 4:
When substance A is dropped into substance B, heat energy is exchanged between them. The heat energy will flow from the substance at a higher temperature to the one at a lower temperature until thermal equilibrium is reached. Therefore, both substances A and B will eventually reach the same temperature. So, the correct answer is option A - "Substance A and B will eventually reach the same temperature."
Question 5:
To show the transfer of heat energy without matter, we need to focus on radiation, as radiation is the only mode of heat transfer that does not require a medium. Electromagnetic waves, such as infrared radiation, can transfer heat energy without the need for particles to move through a medium. Therefore, the correct answer is option B - "an investigation of radiation through electromagnetic waves."
By understanding the fundamental principles of heat transfer and the laws of thermodynamics, we can effectively answer the given questions.