Question 4 (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 collisions between particles in space
b
an investigation of radiation through a current in a fluid
c
an investigation of conduction through the movement of particles through a solid
d
an investigation of radiation through electromagnetic waves
6 answers
d. an investigation of radiation through electromagnetic waves
are you correct
Yes, I am correct. An investigation of radiation through electromagnetic waves would best help the student show the transfer of heat energy without matter. Radiation is the transfer of energy through electromagnetic waves, which can occur in a vacuum or in the absence of matter.
Question 5 (1 point)
The diagram below shows two substances, A and B, which are at different temperatures.
A - Temperature of substance A is at 50*C
B - Temperature of substance B is at 25*C
What will happen when substance A is dropped into substance B?
a
Substance A and B will exchange heat, and they both will reach 25°C.
b
Substance A and B will exchange heat, and they both will reach 50°C.
c
Substance A and B will eventually reach the same temperature.
d
Substance A will get even warmer as heat flows into it from substance B.
The diagram below shows two substances, A and B, which are at different temperatures.
A - Temperature of substance A is at 50*C
B - Temperature of substance B is at 25*C
What will happen when substance A is dropped into substance B?
a
Substance A and B will exchange heat, and they both will reach 25°C.
b
Substance A and B will exchange heat, and they both will reach 50°C.
c
Substance A and B will eventually reach the same temperature.
d
Substance A will get even warmer as heat flows into it from substance B.
c. Substance A and B will eventually reach the same temperature.
are you sure
1 answer