Question 1: Where do sound waves travel the fastest?
Question 2: Who directed the movie "Jaws", released in 1975?
"Jaws" was directed by Steven Spielberg and is considered a classic thriller that launched Spielberg's career as a major Hollywood director. The movie's success also established the modern summer blockbuster.
Question 3: In which country did the tango dance originate?
The tango dance originated in the 1880s along the Río de la Plata, the natural border between Argentina and Uruguay. It started in the working-class port areas of these countries, strongly influenced by European immigrants, former enslaved Africans, and the local population. Over time, the tango spread globally and became an important part of Argentina's cultural identity.
Question 4: In Euclidean geometry, how many sides does a heptagon have?
A heptagon is a seven-sided polygon. The name "heptagon" comes from the Greek words "hepta", meaning seven, and "gonia", meaning angle.
Question 5: Which animal is featured on the Australian coat of arms?
The Australian coat of arms features a kangaroo and an emu, chosen because they are native Australian animals that cannot walk backwards, symbolising Australia's desire to move forward as a nation.
Question 6: Why was the Battle of Midway a significant turning point in World War II?
The Battle of Midway, fought in June 1942, marked the first major defeat of the Japanese Navy by the U.S. Navy. The battle stopped Japan's advance in the Pacific and shifted the balance of naval power in favor of the Allies. After Midway, Japan was forced into a defensive posture for the remainder of the war.
Question 7: If H2O is the chemical formula for water, what is the chemical formula for table salt?
Table salt is sodium chloride, with the chemical formula NaCl. It consists of equal parts of sodium (Na) and chloride (Cl) ions joined by an ionic bond. NaOH is sodium hydroxide, H2SO4 is sulfuric acid, and CaCO3 is calcium carbonate (chalk).
Question 8: Which Greek god is known as the ruler of the underworld?
In Greek mythology, Hades is the god of the dead and the ruler of the underworld. He is often depicted with his three-headed dog, Cerberus, who guards the entrance to the underworld.
Question 9: Why is double jeopardy prohibited in most legal systems?
The prohibition on double jeopardy is a fundamental principle in most legal systems, which stipulates that an individual cannot be tried twice for the same crime. This protection is enshrined in the Fifth Amendment of the US Constitution and is intended to prevent the government from repeatedly prosecuting an individual for the same offense until a conviction is obtained.
Question 10: Where was the trial of Socrates held in 399 BC?
The trial of Socrates, one of the most famous trials in history, took place in Athens in 399 BC. Socrates was accused of corrupting the youth and not believing in the gods of the state. He was sentenced to death by drinking a mixture containing poison hemlock.
Sound waves travel the fastest through solids because the molecules in solids are tightly packed and can quickly transmit vibrations from one to another. In contrast, sound travels slowest through gases, as the molecules are far apart and collisions between molecules are less frequent.