1.
What does E=mc2 mean?
Correct Answer
C. Time is inversely proportional to an object's speed.
Explanation
The equation E=mc^2, derived by Albert Einstein, states that energy (E) is equal to the mass (m) of an object multiplied by the speed of light (c) squared. This equation implies that mass and energy are interchangeable, and that a small amount of mass can be converted into a large amount of energy. Additionally, the equation does not mention anything about the relationship between mass and speed, so the options stating that mass is not equal to speed or not affected are incorrect.
2.
What is the percentage of oxygen in air inside earth?
Correct Answer
B. 21%
Explanation
The correct answer is 21%. Oxygen makes up approximately 21% of the air inside the Earth's atmosphere. This percentage is essential for supporting life on Earth, as oxygen is necessary for the respiration of most living organisms.
3.
Who was the English physician who discovered the pathway of blood throughout the body without the aide of a microscope?
Correct Answer
C. William Harvey
Explanation
William Harvey was an English physician who made significant contributions to the field of medicine. He is best known for his discovery of the circulation of blood throughout the body. Harvey's groundbreaking work, published in 1628, described the heart as a pump that circulated blood through a closed network of vessels, debunking the previously held belief that blood was consumed and produced by the body. His observations and experiments laid the foundation for our understanding of the cardiovascular system and revolutionized the field of anatomy and physiology.
4.
Last question for Easy- What do you call the largest artery in the body?
Correct Answer
C. Aorta
Explanation
The correct answer is Aorta. The aorta is the largest artery in the body and carries oxygen-rich blood from the heart to the rest of the body. It originates from the left ventricle of the heart and branches out to supply blood to all the organs and tissues.
5.
Average-
In October 2003, NASA reported that seven astronauts were killed when their spaceship broke apart and burned while re-entering Earth's atmosphere. What is the name of this spaceship?
Correct Answer
Space Shuttle Columbia, Columbia
Explanation
In October 2003, NASA reported the tragic incident where seven astronauts lost their lives when their spaceship broke apart and burned during re-entry into Earth's atmosphere. The name of this spaceship was Space Shuttle Columbia.
6.
Who was the first American to orbit Earth?
Correct Answer
John Glenn
Explanation
John Glenn was the first American to orbit Earth. He achieved this historic feat on February 20, 1962, as part of the Mercury-Atlas 6 mission. Glenn's successful orbit around the Earth marked a significant milestone in space exploration and the United States' space program. His mission lasted for nearly five hours, during which he circled the Earth three times. Glenn's achievement not only cemented his place in history but also paved the way for future space missions and advancements in space technology.
7.
In what year, did Apollo 11 launch?
Correct Answer
1969
Explanation
Apollo 11 launched in 1969. This was a significant year in space exploration as it marked the first time that humans set foot on the moon. The mission was launched by NASA with the aim of landing astronauts Neil Armstrong and Buzz Aldrin on the lunar surface. The successful landing and subsequent moonwalk by Armstrong made history and is considered one of the greatest achievements in human space exploration.
8.
What is the only metal that is liquid at room temperature?
Correct Answer
Mercury
Explanation
Mercury is the only metal that is liquid at room temperature. This is because it has a low melting point of -38.8 degrees Celsius (-37.9 degrees Fahrenheit). Most metals have high melting points, causing them to be solid at room temperature. However, due to its unique atomic structure and weak metallic bonding, mercury remains in a liquid state.
9.
What do you call the branch of science that studies plants?
Correct Answer
Botany
Explanation
Botany is the branch of science that studies plants. It focuses on the structure, growth, reproduction, metabolism, and classification of plants. Botanists study various aspects of plants, including their anatomy, physiology, genetics, ecology, and evolution. They also investigate the interactions between plants and their environment, as well as their economic and medicinal uses. By understanding plants, botanists contribute to fields such as agriculture, forestry, medicine, and conservation.
10.
What is the farthest planet from the Sun since 2007?
Correct Answer
Neptune, Neptune-Pluto was renamed as dwarf planet. Therefor it is not a planet anymore.
Explanation
Since 2007, the farthest planet from the Sun is Neptune. This is because Pluto, which used to be considered the farthest planet, was reclassified as a dwarf planet in 2006. Therefore, Neptune remains the farthest planet from the Sun.
11.
Who stated that if two gases have the same temperature, and volume, the number of molecules is the same.
Correct Answer
Amedeo Avogadro
Explanation
The statement that "if two gases have the same temperature and volume, the number of molecules is the same" is a fundamental concept known as Avogadro's Law. It is named after the Italian scientist Amedeo Avogadro, who proposed this hypothesis in the early 19th century. Avogadro's Law is a significant principle in the field of chemistry and provides insights into the behavior of gases, particularly with regard to the relationship between the number of gas molecules and their physical properties.
12.
Who invented The ICONOSCOPE?
Correct Answer
Vladimir Zworykin
Explanation
Vladimir Zworykin is credited with inventing the Iconoscope. He was a Russian-American engineer and inventor who made significant contributions to the development of television technology. The Iconoscope was the first practical television camera tube, which played a crucial role in the early days of television broadcasting. Zworykin's invention revolutionized the field of television by allowing the conversion of visual images into electronic signals, paving the way for the transmission and reception of television broadcasts. His work laid the foundation for the modern television systems that we use today.
13.
Albert Einstein's most famous equation, E = mc², represents the relationship between ______ and energy.
Correct Answer
mass, Mass
Explanation
Einstein's equation, E = mc², is a cornerstone of modern physics. It states that energy (E) is equivalent to mass (m) multiplied by the speed of light (c) squared. This equation reveals that mass and energy are interchangeable, and even a small amount of mass can be converted into a tremendous amount of energy. This principle is fundamental to understanding nuclear reactions and the energy production in stars.