1) The positively charged subatomic particle. a) neutron b) electron c) proton 2) A positively charged ion. a) Cation b) anion c) electrode 3) Materials that do not conduct electricity or heat effectively. a) conductors b) insulators c) ions 4) It refers to the imbalance of electric charge on an object, resulting in the presence of a net positive or negative charge. a) electric field b) electric charges c) electric flux 5) Electric field lines representation for two negative charges a) b) c) 6) The total effect of multiple independent effects is the sum of the effects of each individually. a) Coulomb's Law b) Superposition Principle c) Gauss' Law 7) What is the electrostatic force of attraction between a 5.0 x 10 ¯⁶ C charge and 2.4 x 10 ⁻⁶ C in 2.5 m? a) ≈ 0.04 N b) ≈ 0.80 c) ≈ 0.01 N 8) Calculate the electric field of 4.05 x 10 ⁻¹⁹C with the distance from the source charge of 2.16 m. a) ≈ 1.68 x 10¯⁹ N b) ≈ 7.80 x 10¯¹⁰ N/C c) ≈ 7.80 x 10¯¹⁰ N 9) Compute the electrostatic force experienced by 2.45 x 10¯¹⁸ C if the electric field is 1285 netwon per coulomb. a) ≈ 3.14 x 10¯¹⁵ N b) ≈ 5.24 x 10²⁰ N c) ≈ 3.21 x 10¯¹⁵ N/C 10) What is the correct formula in finding the charge of two identically charged materials? a) b) c) d) epoch 11) Two identically charged aluminum cans are separated 1.56 m apart, if each of them experiences a repulsive force of 1.02 N, what is the charge? a) ≈ 1.33 x 10¯⁵ C b) ≈ 1.66 x 10¯⁵ C c) ≈ 1.66 x 10¯⁵ N/C 12) A charged particle can be affected by its own electric field. a) TRUE b) FALSE 13) The material losing electrons from rubbing becomes negatively charged. a) TRUE b) FALSE 14) In rubbing silk and wood, the silk will gain negative charge from the wood. a) TRUE b) FALSE 15) Between PVC and fur, the PVC has more positive charges than the fur. a) TRUE b) FALSE

PHY 2

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