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Question: Bile is a substance secreted to help digest fats. Bile is stored in the: Answer: Gallbladder Question: Which element in the protein hemoglobin, found in red blood cells, is responsible for binding oxygen? Answer: Iron Question: When a blood vessel is injured, which of the following is responsible for clotting? Answer: Platelets Question: If CaCl2 is mixed with Na2SO4 in aqueous solution, which of the following is a possible product? Answer: NaCl Question: The Earth is about 4.5 billion years old. About how many years ago did life first appear? Answer: 3.5 billion years Question: The sun’s energy reaches the Earth’s surface primarily in the form of: Answer: Visible light radiation Question: Which type of rock would likely be found at the bottom of a river bed? Answer: Sedimentary Question: Which of the following statements about the Earth is true? Answer: The mantle makes up the largest percentage of the Earth’s volume Question: If an unbalanced force acts on an object, then the object will begin to accelerate according to: Answer: Newton’s Second Law Question: In meiosis, one parent cell becomes how many daughter cells? Answer: 4 Question: The potential energy of an object with a mass of 5kg that is placed 20 meters above the surface of the earth is most nearly: Answer: 981 Joules Question: One of the reasons bacteria can be so deadly is because they multiply very quickly. E. coli has a doubling time of around 15 minutes. This means that if 100 bacteria are left alone for 2 hours, they will multiply to become: Answer: 25,600 Bacteria Question: Organisms which help one another survive by providing a mutual benefit to each other are known as: Answer: Symbionts Question: In taxonomy, which classification comes after ‘family’? Answer: Genus Question: All of the following are phenotypic traits except for: Answer: Missing 22nd chromosome Question: The cell membrane is a structure composed primarily of: Answer: Lipid Question: Of the following layers of the atmosphere, which is the closest to the earth’s surface and contains the majority of clouds? Answer: Troposphere Question: Which of the following body systems is most closely associated with the immune system? Answer: Lymphatic System Question: One of the primary characteristics of a bacteria is its: Answer: Lack of a nuclear membrane Question: Which of the following planets has a perfectly circular orbit? Answer: None Question: Sound waves will travel the fastest in a medium that is: Answer: The most dense Question: A calorie is actually a measure of energy, and is equivalent to how many Joules? Answer: 4.18 Question: What is the molecular weight of the compound C2H5O? Answer: 45 Question: Craig ran 2.5 miles on his afternoon run. How many feet did he run? Answer: 13,200 feet Question: The earth’s surface is covered by approximately what percent water? Answer: 70% Question: Blood that flows back from the body will enter the heart through the: Answer: Right Atrium Question: A nerve impulse is transmitted through your nervous system primarily by: Answer: An electric potential Question: All magnets have two poles which can be used to predict the direction of their magnetic waves. These two poles are the: Answer: South and North Question: Approximately how many bones exist in the human body? Answer: 200 Question: The nucleus of an atom is composed of: Answer: Protons and neutrons Question: What is the second most abundant gas in the atmosphere? Answer: Oxygen Question: As light passes through a substance, the incident angle changes, meaning the light’s entering angle is different than its exiting angle. This is an example of: Answer: Refraction Question: If one tectonic plate slides under another, the process is known as: Answer: Subduction Question: Carbon dioxide can be consumed and converted into glucose by what type of organism? Answer: Plants Question: Two separate weather fronts will have air that is of different: Answer: Density Question: Plants are autotrophs, meaning that they: Answer: Are able to produce their own food Question: Plant and animal cells both have cell membranes and nuclear membranes. However, plant cells have a structure that animal cells do not, known as a: Answer: Cell Wall Question: Muscles in the human body require what energy compound to function? Answer: ATP Question: When a human cell divides in mitosis, the two daughter cells will each have: Answer: 46 Chromosomes Question: In an electromagnetic wave, as the frequency of the wave becomes greater, what becomes shorter? Answer: The wavelength Question: Which of the following time periods is the longest? Answer: Eon Question: In the lily flower, the red color is dominant and the white color is recessive. This means that if you cross a homozygous red flower with a white one, the offspring will be: Answer: All red Question: Which of the following is a characteristic of the tundra ecological biome? Answer: Landscape dominated by shrubs and short trees Question: A train travels at 25 mph for 3 hours. How far did the train move? Answer: 75 miles Question: A solution contains 0.1 molar hydrogen ions (H+). This means the solution is likely: Answer: Around pH 1
Updated 31d ago
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Potential Energy
Updated 56d ago
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Q: What gas do plants absorb from the atmosphere? A: Carbon dioxide Q: What is the chemical symbol for water? A: H₂O Q: What is the most abundant element in th universe? A: Hydrogen Q: What force keeps us grounded on Earth? A: Gravity Q: What organ in the human body is primarily responsible for pumping blood? A: Heart Q: What is the largest planet in our solar system? A: Jupiter Q: What is the hardest natural substance on Earth? A: Diamond Q: What element is essential for the production of red blood cells? A: Iron Q: What process do plants use to make their food? A: Photosynthesis Q: What is the boiling point of water at sea level in Celsius? A: 100°C Q: Which vitamin is produced when a person is exposed to sunlight? A: Vitamin D Q: What type of energy is stored in a stretched rubber band? A: Potential energy Q: What is the study of life called? A: Biology Q: What is the basic unit of life? A: Cell Q: What is the speed of light in a vacuum? A: Approximately 299,792,458 meters per second Q: Who formulated the three laws of motion? A: Sir Isaac Newton Q: What is the unit of electrical resistance? A: Ohm Q: What phenomenon explains the bending of light when it passes through different mediums? A: Refraction Q: What is the first law of thermodynamics? A: Energy cannot be created or destroyed, only transferred or changed in form. Q: What particle carries a positive charge? A: Proton Q: What is the term for materials that do not conduct electricity? A: Insulators Q: What is the formula for calculating force? A: Force = Mass × Acceleration (F = ma) Q: What is the SI unit of power? A: Watt Q: What is the phenomenon where two waves superimpose to form a resultant wave? A: Interference Q: What is the term for the resistance of any physical object to a change in its state of motion or rest? A: Inertia Q: Who is known for the theory of relativity? A: Albert Einstein Q: What is the study of motion without considering its causes? A: Kinematics Q: What is the effect where a wave changes direction because of an obstacle? A: Diffraction Q: What is the process by which unstable atomic nuclei lose energy by emitting radiation? A: Radioactive decay
Updated 60d ago
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