Answer:
As for the definitions, the tendency of two or more different molecules to bond with each other is known as Adhesion, whereas the force of attraction between the same molecules is known as Cohesion.
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A. The potential energy is always the highest at the top and the kinetic energy is always the lowest at the top.
Answer:
D
Explanation:
The negative feedback is responsible for maintaining equilibrium (stability) in a system as it lessens effects, which is contrary to positive feedback which increases reaction and moves a system further away from equilibrium (stability), It does so by amplifying the effects of a product or event and occurs when something needs to happen quickly. e.g
- Insulin lowers down blood sugar levels, so when the body detects that it has too much sugar, the pancreas is prompted to release insulin and only stops when balance is achieved; hence, negative feedback.
- When there is a tear on the skin, a chemical is released. This chemical causes platelets in the blood to activate, hence they release a chemical which signals more platelets to activate, until the wound is clotted, positive feedback.
Option B
Electrons has a negative charge
<u>Explanation:</u>
Electrons are the negatively charged shreds of an atom. Collectively, the positive charge of the protons in the atomic nucleus are neutralized by each of the electrons of an atom engenders a negative charge. Electrons are notably meager associated with all of the distinct components of the atom.
Electrons enclose the nucleus. Because electrons travel so speedily, it is improbable to discern where they are at a distinct instant in time. Electrons perform a dominant position in whole chemical bonds.
2ND LAW OF MOTION
2. mass has an inverse relationship with acceleration.
3. the greater the magnitude of force, the faster the acceleration.
