Electricity: Question Preview (ID: 3657)


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A neutron carries a(n)
a) positive charge. b) negative charge. c) variable chage. d) no charge (neutral).
A glass rod is rubbed with a piece of silk. During the process, the glass rod
a) acquires a positive charge and the silk acquires a positive charge also. b) acquires a negative charge and the silk acquires a negative charge also. c) acquires a negative charge and the silk remains neutral. d) acquires a positive charge and the silk acquires a negative charge..
Atoms are composed of
a) protons and neutrons located in the nucleus, and electrons in the surrounding space. b) protons and electrons in the nucleus, and neutrons balancing them out. c) neutrons in the nucleus, protons and electrons in the surrounding space. d) electrons, protons and neutrons in orbitals.
Choose the statement that is FALSE.
a) A positively charged object contains less electrons than protons. b) Compared to electrons, protons and neutrons are massive. c) The charge on a single electron is -1.6 x 10 -19 C; on a single proton is +1.6 x 10 -19 C. d) The charge possessed by an object is expressed using the scientific unit the Coolie
Like charges objects will exhibit
a) repulsion b) attraction c) static d) friction
Choose the statement that is FALSE.
a) A wooden spoon is an insulator. b) The inverse relationship of charges means the larger the field affected, the less the effect. c) Examples of conductors include metals, aqueous solutions of salts, water & the human body. d) It is impossible for two electrons to attract each other.
Induction can cause polarization.
a) TRUE b) FALSE c) d)
During conduction,
a) objects must touch, causing polarization. b) objects must not touch, or else polarization will occur. c) objects must touch, causing a transfer of electrons. d) objects must not touch, causing a transfer of electrons.
A conductor differs from an insulator in that a conductor
a) has an excess of protons and electrons. b) has faster moving molecules. c) does not have any neutrons to get in the way of electron flow. d) none of these.
During a physics lab, a plastic strip was rubbed with cotton & became positively charged because
a) the plastic strip acquired extra protons from the cotton b) the plastic strip acquired extra protons during the charging process c) protons were created as the result of the charging process d) the plastic strip lost electrons to the cotton during the charging process
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