Notes, summaries, assignments, exams, and problems for Secondary education

1. Structure of an atom -  An atom is composed of protons, electrons, and neutrons. The entire mass of an atom is concentrated in the nucleus which is at the centre.

   1. Protons - Protons are the positively charged particles which are present in the nucleus of an atom.

   2. Neutrons - Neutrons are the particles in an atom that have a neutral charge. 

   3. Electrons - An electron is a negatively charged subatomic particle that can be either bound to an atom or free

   4. Atomic Mass (what it represents) - The atomic number refers to the number of protons in the atom's nucleus, 

   5. Atomic Number (what it represents) - The atomic mass of an element represent the average total mass of its neutrons, protons, and electrons

2. Standard Atomic Notation

   1. How to determine how many neutrons,

November 30, 2023

World War II Begins

Causes of World War II

1. The Treaty of Versailles
2. Rise of Totalitarianism
3. Adolf Hitler's Actions
4. Failure of the League of Nations

1938: The Munich Conference

• Adolf Hitler hosted Italy, France, and Britain.
• He demanded the rest of Czechoslovakia.
• British Prime Minister Neville Chamberlain appeased Hitler.

The Nazi-Soviet Non-Aggression Pact

• Adolf Hitler and Joseph Stalin signed a 10-year non-aggression agreement between Germany and the Soviet Union.

The Spark of World War II

• On September 1, 1939, Germany invaded Poland.
• On September 3, 1939, Britain and France declared war.

Canada's Decision to Enter the War

• William Lyon Mackenzie King waited one week, declaring war on September 10th.
• This demonstrated Canada's growing autonomy

Red Flag Laws

• According to Joseph Blocher and Jacob D. Charles, legal professors at Duke University and Pepperdine Caruso Law School, respectively, “extreme risk laws provide a way for guns to be quickly and temporarily taken away from a person who does not necessarily fit into a prohibited class but is at risk of harming themselves or others.” Thus, this solution does not profile specific groups but collects information to ascertain individuals' ability to bear arms.

Implications

• Combining a national ERPO and a gun safety course can help reduce teen mortality rates and improve gun reform.

• The implementation of our solution will subsequently elicit a more knowledgeable understanding of gun violence, causing a decrease in school shootings.

• According

What is an Insurance Policy

It's a contract of agreement between the insurer and the policy holder. It contains the terms and conditions.

The insurer agrees to cover the losses, if they occur, in return for premium payments.

Principles

• Principle of Insurable Interest: You can't insure anything that is not in your name. You can only insure something that, if something bad happens to it, you incur losses.
• Principle of Indemnity: The insurer will only return you the current value of the loss, they will pay you the current value of the object right before the incident, not the original price.
• Principle of Subrogation: Your insurance company pays the money and then they ask for the money from the company that has to pay.
• Principle of Contribution: When

STAFFING

Meaning:

Staffing is the process of attracting, recruiting, selecting, placing, appraising, remunerating, developing, and retaining the best workforce.

Importance of Staffing:

• Effective Managerial Function:
• Leads to Effective Utilization of Human Resources:
• Builds Cordial Relationship:
• Helps Human Resource Development:
• Helps in Effective use of Technology and Other Resources:
• Improves Efficiency:
• Long Term Effect:
• Essential Contribution:
• Provides Job Satisfaction:
• Maintains Harmony:

The heart: double circulatory system

Vena cava - body to the heart (DO), pulmonary artery heart to lungs (DO), pulmonary vein - lungs to heart (O), aorta - heart to body (O). Arteries take blood away from the heart, veins take it towards the heart, Pulmonary means lungs. Valves make sure blood flows in a one way direction. Blood goes from heart to lungs to be oxygenated via the pulmonary artery. The now oxygenated blood goes back to the heart via the pulmonary vein to be pumped around the body via the aorta. Once the blood has been round the body, it is pumped to the heart via the vena cava to be sent to the lungs again for oxygenation then the cycle repeats.

Coronary heart disease

The coronary artery supplies blood to the heart (the heart is... Continue reading "Understanding the Human Heart and Immune System" »

The 7Ps of Marketing

1. Product

A product, whether tangible goods or intangible services, is offered to customers to satisfy their needs. Market research helps businesses determine the right products to produce and sell, impacting customer perception and business success.

2. Price

Price is the amount required to purchase a product. Determining price involves considering factors like cost, customer willingness to pay, value, and utility. A balanced price avoids negatively impacting demand or profitability.

3. Place

Place ensures the right product reaches potential buyers at the right location and time. Effective distribution strategies focus on accessible locations for target consumers.

4. Promotion

Promotion encompasses marketing communication used... Continue reading "7Ps of Marketing: Enhance Your Business Strategies" »

According to this text are all the men equal in rights? What are the rights of man according to the text?

Yes, they are because says that all men are born free.

What is the origin of sovereignty according to the text? According to the text, can you be punished for something that is not forbidden by law? Who can take part in politics (make laws) according to the text?

The origin of sovereignty is the nation (line 6). No, you can be punished for something that is not forbidden by law (lines 11-12). All the citizens can take part in politics (lines 14-15).

Do you know during which phase of the French Revolution was signed this text: National Assembly, Constitutional Monarchy, First French Republic or Directory? Do you think that the principles of

The Importance of Warming Up

A warm-up is known as the sequential and progressive exercises performed before the main activity to prepare the body for the physical activity the person is going to do.

Why is it so important to warm up?

• To avoid injuries
• To prepare the body and the mind for more intense physical activity

Physiological and Psychological Effects

• Cardiovascular System: It activates the cardiovascular system by increasing the heart rate (pulse); heartbeats become more powerful.
• Breathing System: It makes you breathe faster and deeper.
• Muscular System: It activates the muscular system and raises the temperature, which allows the muscles to work faster and more effectively.
• Neural System: It activates the neural system, leading to better coordination,

Ionic Bonding

Bonding between a non-metal and a metal where electrons are transferred from the metal to the non-metal. This results in the non-metal forming a negative ion and the metal forming a positive ion. The structure is a giant ionic lattice with strong electrostatic forces between ions. A lot of energy is needed to break these forces, resulting in high melting and boiling points. Ionic compounds conduct electricity when aqueous or molten, as the ions are free to move around. They can be represented using dot and cross diagrams.

Covalent Bonding

Bonding between two non-metals. Covalent compounds do not conduct electricity as there are no charged particles. Small molecules are liquids or gases at room temperature due to weak intermolecular... Continue reading "Chemical Bonding and Structure" »