Recognize and differentiate that matter is made of particles in constant motion (solid, liquid, gas, and plasma)
Explain why adding or removing energy causes a phase change and
give example (4.01)
Define and give examples of elements and compounds
Compare and contrast a pure substance and mixture (homogeneous
and heterogeneous). (4.02)
Identify and give examples of physical and chemical changes. (4.03)
Describe contributions of scientists to the modern atomic theory from
Democritus through Chadwick (4.04)
Describe the structure of atoms (electrons, neutrons, and protons)
Define isotope.
Compare atomic number and mass number. Be able to solve for
mass number, neutrons, and protons.
Explain how the periodic table is organized.
.
6

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.

that the claims meet official rules.

don't misinterpret the claims