Homework Help: Science

Posted by Rezu on Monday, April 2, 2012 at 5:06pm.

Molecules that make up matter move constantly.Which of these forms of energy refers to the energy of the moving molecules and why?
A.Chemical Energy
B.Thermal Energy
C.Electrical Energy
D.Light Energy

Which device can change electrical energy to light and sound energy?
A.Speakers
B.Electric Lamp
C.Television
D.Fan
C?

Science - Elena, Monday, April 2, 2012 at 5:23pm
1. B
2. B, A
Science - Rezu, Monday, April 2, 2012 at 5:26pm
Can you explain why for Question 1?
Science - Elena, Monday, April 2, 2012 at 6:05pm
Thermal energy is generated and measured by heat of any kind. It is caused by the increased activity or velocity of molecules in a substance, which in turn causes temperature to rise accordingly.

Answer this Question

Related Questions

physics - what is thermal equilibrim, and what is thermal energy? what are fluid...
11th grade Biology - Match the following.. 12. Moves in cycles from nonliving ...
Science 8R - help (please read!!!) - Homework - Pick 4 out of the 6 forms (types...
Science - 1.What is refraction? The bending of light as it passes through matter...
science, ipc - Which best describes longitudinal waves? ...
Science - When energy changes forms, the total amount of energy is conserved. ...
Physics - please check: Which of the following energy forms is associated with ...
Integrated Physics and Chemistry - The internal energy of a material is ...
Science - What type of energy from the Sun do plants use to make their own food...
Physics - How much kinetic energy does a 1 kg ball have if it has a velocity of ...

For Further Reading

First Name:
School Subject:
Answer: