Physical Science -First Semester (1st Periodical)
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Questions and Answers

Which elements are formed in the fusion process inside stars?

  • Hydrogen, helium, and lithium (correct)
  • Carbon, nitrogen, and oxygen
  • Oxygen, iron, and uranium
  • Helium, carbon, and nitrogen

What is the final element formed during the pre-explosion burning inside massive stars?

  • Oxygen
  • Uranium
  • Gold
  • Iron (correct)

Which elements are formed during the explosion phase of a supernova?

  • Oxygen through to iron (correct)
  • Uranium and gold
  • Hydrogen, helium, and lithium
  • Carbon, nitrogen, and oxygen

Which elements are formed in both the pre-explosion evolution and the explosion phase of a supernova?

<p>Oxygen through to iron (D)</p> Signup and view all the answers

Which element is not formed in the fusion process inside stars?

<p>Uranium (C)</p> Signup and view all the answers

Which element is formed during the pre-explosion burning inside massive stars?

<p>Oxygen (A)</p> Signup and view all the answers

Which element is not formed in the fusion process inside stars?

<p>Gold (B)</p> Signup and view all the answers

Which elements are formed during the explosion phase of a supernova?

<p>Oxygen and Iron (D)</p> Signup and view all the answers

Which elements are formed in both the pre-explosion evolution and the explosion phase of a supernova?

<p>Hydrogen and Helium (B)</p> Signup and view all the answers

Which elements are formed in the fusion process inside stars?

<p>Hydrogen and Helium (D)</p> Signup and view all the answers

Which element is formed during the fusion process inside stars?

<p>Helium (A)</p> Signup and view all the answers

Which element is formed during the pre-explosion burning inside massive stars?

<p>Iron (B)</p> Signup and view all the answers

Which elements are formed during the pre-explosion evolution of a supernova?

<p>Oxygen through to iron (D)</p> Signup and view all the answers

Which elements are formed during the explosion phase of a supernova?

<p>Uranium and gold (B)</p> Signup and view all the answers

Which elements are formed during both the pre-explosion evolution and the explosion phase of a supernova?

<p>Hydrogen, helium, and lithium (B)</p> Signup and view all the answers

Which subatomic particle has no electrical charge but significantly adds to the mass of an atom?

<p>Neutron (B)</p> Signup and view all the answers

According to the Plum Pudding Model, the atom consists of negatively charged 'plums' surrounded by positively charged 'pudding'. Who proposed this model?

<p>J.J. Thomson (D)</p> Signup and view all the answers

Who conducted the gold foil experiment and discovered that the atom has a tiny and heavy nucleus?

<p>Ernest Rutherford (A)</p> Signup and view all the answers

According to Niels Bohr, electrons occupy only certain stable orbits around the nucleus. What are these orbits called?

<p>Stationary orbits (A)</p> Signup and view all the answers

What is the formula to calculate the number of neutrons in an atom?

<p>Neutrons = Atomic Mass – Atomic Number (C)</p> Signup and view all the answers

According to John Dalton's atomic model, which of the following statements is true?

<p>Atoms of an element are identical. (D)</p> Signup and view all the answers

According to Joseph John Thomson's Plum Pudding Model of the atom, what is the analogy used to describe the atom?

<p>Negatively charged 'plums' surrounded by positively charged 'pudding' (A)</p> Signup and view all the answers

Who conducted the gold foil experiment and demonstrated that the atom has a tiny and heavy nucleus?

<p>Ernest Rutherford (A)</p> Signup and view all the answers

According to Niels Bohr's atomic model, what are the stable orbits around the nucleus called?

<p>Stationary orbits (B)</p> Signup and view all the answers

What is the formula to calculate the number of neutrons in an atom?

<p>Neutrons = Atomic Mass - Atomic Number (C)</p> Signup and view all the answers

According to John Dalton's atomic model, which of the following statements is true?

<p>Atoms of an element are identical. (C)</p> Signup and view all the answers

According to Joseph John Thomson's Plum Pudding Model of the atom, what is the analogy used to describe the atom?

<p>Negatively charged 'plums' surrounded by positively charged 'pudding' (D)</p> Signup and view all the answers

Which subatomic particle has no electrical charge but significantly adds to the mass of an atom?

<p>Neutron (B)</p> Signup and view all the answers

According to Niels Bohr's atomic model, what are the stable orbits around the nucleus called?

<p>Stationary orbits (A)</p> Signup and view all the answers

What is the formula to calculate the number of neutrons in an atom?

<p>Neutrons = Atomic Mass – Atomic Number (B)</p> Signup and view all the answers

Which branch of biology deals with the normal functions of living organisms and their parts?

<p>Physiology (D)</p> Signup and view all the answers

Which type of molecules occur when two atoms do not share electrons equally in a covalent bond?

<p>Polar molecules (A)</p> Signup and view all the answers

Which type of molecules have an abundance of charges at the opposite sides and the charges cancel out each other?

<p>Nonpolar molecules (C)</p> Signup and view all the answers

Which material is commonly used in the design and manufacturing of household furniture and gadgets?

<p>Plastics (D)</p> Signup and view all the answers

Which biological macromolecule is composed of a significant amount of carbon, hydrogen, and oxygen, and is found in fruits, grains, vegetables, and milk products?

<p>Carbohydrates (B)</p> Signup and view all the answers

Which branch of biology deals with the normal functions of living organisms and their parts?

<p>Physiology (B)</p> Signup and view all the answers

Which type of molecules occur when two atoms do not share electrons equally in a covalent bond?

<p>Polar molecules (D)</p> Signup and view all the answers

What is the primary structure of proteins composed of?

<p>Amino acids (C)</p> Signup and view all the answers

Which material is commonly used in the design and manufacturing of household furniture and gadgets?

<p>Plastics (D)</p> Signup and view all the answers

Which element is not formed in the fusion process inside stars?

<p>Nitrogen (D)</p> Signup and view all the answers

Which branch of biology deals with the normal functions of living organisms and their parts?

<p>Physiology (B)</p> Signup and view all the answers

Which type of molecule occurs when two atoms do not share electrons equally in a covalent bond?

<p>Polar molecules (C)</p> Signup and view all the answers

Which element is found in sugars, starches, and fibers in fruits, grains, vegetables, and milk products?

<p>Carbohydrates (B)</p> Signup and view all the answers

Which component of proteins are made up of many building blocks known as amino acids?

<p>Primary structure (D)</p> Signup and view all the answers

Which type of molecule includes waxes, fats, and oils?

<p>Lipids (A)</p> Signup and view all the answers

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