The table identifies how several types of energy are transported and generated.
Energy Type Method of Transportation How Generated
W electromagnetic waves internal motion of particles
X mechanical waves vibration of materials
Y mechanical waves application of work
Z electromagnetic waves interaction of charges
Which of the following correctly identifies each energy type?
A
W is sound, X is heat, Y is mechanical, and Z is electrical.
B
W is electrical, X is mechanical, Y is heat, and Z is sound.
C
W is electrical, X is mechanical, Y is sound, and Z is heat.
D
W is heat, X is sound, Y is mechanical, and Z is electrical.
The correct answer is A.
W is sound because it is transported by mechanical waves, which are vibrations of materials.
X is heat because it is transported by mechanical waves, which are vibrations of materials.
Y is mechanical because it is transported by mechanical waves, which are vibrations of materials.
Z is electrical because it is transported by electromagnetic waves, which are the interaction of charges.