Tiếng Anh kĩ thuật điện

U1: ELECTRONS

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What is the correct definition and Vietnamese meaning of "matter"?

• The smallest unit of matter (nguyên tử)

• Physical substance in the universe (vật chất)

• A subatomic particle of about the same mass as a proton (nơ-t-rông)

• A material (chất)

What is the correct definition and Vietnamese meaning of "atom"?

• A force between charges (lực hút)

• The smallest unit of matter (a chemical element) (nguyên tử)

• A grouping of electrons in a shell (lớp vỏ điện tử)

• A molecule made from multiple substances (phân tử)

What is the correct definition and Vietnamese meaning of "substance"?

• A material (chất)

• A charged atomic particle (điện tích)

• A very small particle inside an atom (hạt hạ nguyên tử)

• A unit of energy (năng lượng)

What is the correct definition and Vietnamese meaning of "molecule"?

• A nucleus containing protons and neutrons (hạt nhân)

• A shell of electrons around the atom (lớp vỏ điện tử)

• A group of atoms forming the smallest unit of a substance (phân tử)

• An area where electric force is detected (điện trường)

What is the correct definition and Vietnamese meaning of "nanoparticle"?

• A force that repels like charges (lực đẩy)

• A small particle between 1-100 nanometers with unique properties (hạt nano)

• A cloud of electrons surrounding a nucleus (đám mây điện tử)

• An electric charge carried by ions (điện tích)

What is the correct definition and Vietnamese meaning of "subatomic particle"?

• A very small piece of matter inside or smaller than an atom (hạt hạ nguyên tử)

• A type of molecule (phân tử)

• An energy level of an atom (lớp năng lượng)

• A combination of atoms forming a substance (chất)

What is the correct definition and Vietnamese meaning of "neutron"?

• A negatively charged particle (điện tử)

• A particle with positive charge (proton)

• A subatomic particle with no electric charge, same mass as a proton (nơ-t-rông)

• The central part of the atom (hạt nhân)

What is the correct definition and Vietnamese meaning of "nucleus"?

• The positively charged central core of an atom (hạt nhân)

• The outer shell of an atom (lớp vỏ điện tử)

• A charged subatomic particle (ion)

• A region of stable atomic force (điện trường)

What is the correct definition and Vietnamese meaning of "isotope"?

• Atoms with the same number of protons but different numbers of neutrons (đồng vị)

• A neutral atomic particle (nơ-t-rông)

• A small magnetic force (lực từ nhỏ)

• Charged clouds of electrons (đám mây điện tử)