B. Molecules are too far apart to affect each other.
C. Molecules have the greatest energy of motion.
D. Molecules are rigid and do not move.
The statement, that describes the energy being used around your class room is "mechanical energy, heat energy, light energy and sound energy."
Energy is defined by scientists as the ability to perform tasks. Energy is described as the "capacity to accomplish work, which is the ability to apply a force that causes an object to move." It can be potential, kinetic, thermal, electrical, chemical, nuclear, or other. Computers, smart boards, overhead projection machines, lighting, and fans are used in the classroom.
Electrical energy is converted into mechanical energy by an electric fan.
The transfer of charge through the filament in the tubelight heats it up and causes it to glow. The tubelight transforms electrical energy to heat energy and light energy in this manner. When you switch on your computer, electrical energy is converted into sound and light energy. When the computer is turned on, electrical energy is converted to thermal energy.
Hence the correct answer is mechanical energy, heat energy, light energy and sound energy.
Learn more about energy here
https://brainly.in/question/16686895
#SPJ2
B) the hypothesis is tested extensively and competing hypothesis are eliminated
C) there are no other competing hypothesis
D) the hypothesis can be tested at least once
2) A preliminary untested explanation that tries to explain how or why things happen in the manner observed is a scientific ________.
A) law
B) theory
C) fact
D) hypothesis
a)Solid
b)Liquid
c)Gas
d)Metals
4.Which state of matter expands the LEAST on heating?
a)Solid
b)Liquid
c)Mercury
d)Gas
Usually within an atom, the protons and electrons are equal to make the atom have a neutral charge.
However, there are cases in which the protons and electrons are different, such as Cations and Anions. Cations end up having a positive charge (less electrons than protons), and Anions end up having a negative charge (more electrons than protons).
I hope this helps!