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

1. What Is Static Electricity?

Static electricity is the imbalance of electric charge accumulated on an object’s surface.

It is commonly observed in daily life, resulting in phenomena such as:

• Hair rising
• A balloon sticking to a wall

2. Atomic Structure and Electric Charge

Electric charge is determined by the components of the atom:

• Proton: Positive (+) charge (located in the nucleus)
• Neutron: Neutral (0) charge (located in the nucleus)
• Electron: Negative (–) charge (orbits the nucleus)

Charge states are defined by the balance of protons and electrons:

• Neutral Atom: Equal number of protons and electrons
• Positive Charge: More protons than electrons (net loss of electrons)
• Negative Charge: More electrons than protons (net gain of electrons)

3. Methods

Power and Authority

• How is it used?
• What effects do the people in power have on others?
• What effect does it have on someone who has none?
  • Tituba
  • Does not having any power and authority make you an easy victim?
• How does fear increase the court's power?

Thesis

By exposing how power is protected through the scapegoating of the innocent, The Crucible critiques the way fear is weaponized to uphold authority and suppress dissent.

Supporting Arguments

• Thomas Putnam’s search for power by accusing people to get their land.

Control and Suppression

• Parris: "There is a faction that is sworn to drive me from my pulpit. Do you understand that?" (Miller 10)
• Those in power often use their authority to suppress opposition and protect their status.
• Parris is more concerned

The Collapse of the Soviet Union

Ronald Reagan served as President of the USA from 1981 to 1988. A staunch conservative and anti-communist leader, he renewed the arms race, which pressured the USSR and eventually contributed to its collapse. Mikhail Gorbachev, the final leader of the Soviet Union (1985–1991), attempted to save the nation through significant reforms:

• Perestroika: Economic restructuring focused on market economy principles and increased consumer goods.
• Glasnost: A policy of transparency, the abolition of censorship, and the introduction of democratic elections.

Causes of the Soviet Bloc Collapse

The crisis of 1991 had roots dating back to 1973. Key factors included:

• Economic Stagnation: The USSR failed to adapt to rising global energy

The Romantic Fantasy of Kenneth Branagh's Cinderella

Cinderella is a romantic fantasy film directed by Kenneth Branagh from a screenplay by Chris Weitz. The film centers on Cinderella, a young girl who is mistreated but, with the help of her fairy godmother, attends a royal ball and finds love with a prince.

Plot Summary: The Royal Ball and the Glass Slipper

The story begins when the King hosts a ball, inviting all the young women in the kingdom. However, Cinderella’s stepmother prevents her from attending. With the help of her fairy godmother, Cinderella receives a beautiful dress and a magical carriage to go to the dance, but she must return before midnight. At the ball, she captures the Prince’s heart but leaves behind her glass slipper... Continue reading "Kenneth Branagh's Cinderella Film: A Dual Review and Analysis" »

Business Fundamentals

• Consumer goods – The physical and tangible goods sold to the general public, including durable goods (e.g., cars, washing machines) and non-durable goods (e.g., food, drinks).
• Consumer services – Non-tangible products sold to the general public, such as hotel accommodation, insurance, and transport.
• Consumer – An individual who buys goods and services for their own use.
• Customer – An individual, group, or organization that purchases goods and services from a business.
• Factor of Production – Resources required by a business to commence the production of goods and services.
• Capital goods – Physical goods used by industry to aid in producing other goods and services, such as machinery and commercial vehicles.

Value and

Economic & Social Transformations (12th-14th Century)

Agricultural Production & Population Growth

Why did agricultural production increase from the 12th century?

Several reasons contributed to the increase in agricultural production. The cultivated area was expanded by clearing forests, draining wetlands, and cultivating new land. In some regions, the three-field crop rotation was introduced, leaving only one-third of farmland fallow. New techniques also facilitated agricultural work, such as the heavy plough, irrigation, windmills, and watermills. This increased production led to more available food, reduced famines, and improved public health. Consequently, the death rate decreased, and the birth rate increased.

Trade Expansion &

While some argue that zoos help protect endangered species, their conservation efforts are often *ineffective*.

Ineffective Conservation Efforts

• Only a small percentage of animals in zoos are part of genuine breeding programs for endangered species.
• Even fewer are ever released back into the wild.

If zoos truly wanted to protect endangered species, they would focus on reintegrating animals into their natural habitats instead of keeping them in enclosures. In many cases, zoos prioritize popular animals that attract visitors rather than those that need urgent conservation efforts.

Prioritizing Profit Over Protection

Instead of keeping animals in captivity, resources should be directed toward:

• Protecting their natural habitats.
• Enforcing anti-poaching

Prokaryotic Cells: Bacteria

• Bacteria capsule: The outer jelly-like layer.
• Bacteria wall: The rigid structure that maintains cell shape.
• Fimbriae: Multiple short appendages used to attach to surfaces.
• Flagellum: A long appendage used for movement.
• Plasmid: A small ring of DNA.
• Ribosomes: Organelles that synthesize proteins.
• Nucleoid: The area where genetic material is concentrated.
• Cell membrane: A selective barrier.
• Cytoplasm: Everything inside the cell excluding the nucleus.

Eukaryotic Cells: Animal Cells

• Mitochondrion: Produces energy for the cell.
• Cell membrane: A selective barrier.
• Cytoplasm: Everything inside the cell excluding the nucleus.
• Nucleus: The site where ribosomes are made.
• Cytoskeleton: A network of protein filaments in the cytoplasm.
• Ribosomes:

English Grammar and Vocabulary Practice Exercises

Multiple Choice Quiz

1. Last Saturday, the burger restaurant was so crowded that the girls __________ to wait outside.

• was told
• told
• sit down
• were told

2. The hyperloop train is a __________ train that can reach speeds of around 1,200 km/h.

• time-consuming
• high’s speed
• high-speed
• high-school

3. People sometimes forget the __________, and they get stuck on rocks with water all around them.

• wave
• tides
• sunsets
• sunrise

4. I love walking in the fields at __________ when the first light appears in the sky.

• sunrise
• sunset
• dawn
• twilight

5. My order __________ until next Monday.

• won’t ship
• will be shipped
• won’t be shipped
• won’t be shipped

6. Pollution from nearby factories is killing the native __________.

• wildlife
• sources
• threats
• transport

7.