The three elements can be made easily magnetic:, A. iron, silver, gold, D. iron, nickel, cobalt, B. iron, nickel, chrome, C. iron, silver, steel, Which of the following statements is false about electric field lines, electric field lines cannot cross., electric field lines are always straight lines, electric field lines point away from positive charge., electric field lines show how a proton would move in an electric field, According to Coulomb's law: If each of the charge’s doubles, what happens to the force?, Quadruples, Stays the same, Doubles, Reduced by half, Magnetic field lines surrounding a magnet are conventionally drawn, from south to north., from north to south., From east to west, either way., Bar magnets have two poles. What are they?, N & E, Red & Blue, Red & Green, S & N, The strength of the force between charged particles is dependent on:, the sign of the particles, the distance between particles, the orientation of the particles, the mass of the particles, Electrical forces ____., can cause objects to only attract each other, can cause objects to only repel each other, can cause objects to attract or repel each other, have no effect on objects, Like poles of a magnet _____ each other, while unlike poles ____ each other., attract, attract, repel, repel, repel, attract, attract, repel, Where is the pushing or pulling force of a magnet strongest?, At the ends of the magnet, Same all the way through the magnet, In the middle of the magnet, None of the above, What happens when two north poles of magnets are placed together?, They repel., They cancel each other out., They attract., The strength of the magnet is doubled., When distance increases, electrostatic force ____________; we call this relationship ____________ proportional, Decreases; inversely, Increases; inversely, Decreases; directly, D. Increases; directly, A plastic rod is charged negatively. Which of the following explains this?, The rod gained electrons., The rod lost electrons., The rod gained protons., The rod lost protons., Electrostatic force F is directly proportional to, r2 (distance squared), q2, q1, both q1 and q2, The electrical force between charges is strongest when the charges are:, the electric force is constant everywhere., close together, far apart, there is no pattern, Consider the electric field lines shown in the diagram below. From the diagram, it is apparent that object A is ____ and object B is ____., +,+, -,+, +,-, -,-, What is the reading of the ammeter in A1?, 2A, 5A, 3A, 0A, At which point is the electric field the strongest, A, B, C, D, Consider the electric field lines drawn at the right for a configuration of two charges. Several locations are labeled on the diagram. Which of these shows the ranking in order of weakest to strongest correctly., A, E, C, D, A, B, D, E, C, A, D, B, In the diagram, P is a point near a negatively charged sphere. Which direction best represents the direction of the electric field at point P?, Right, Up, Left, Down, Two resistors are connected in a circuit as shown. What is the total resistance of the resistors?, less than 2 Ω, between 3 Ω and 5 Ω, between 2 Ω and 3 Ω, more than 5 Ω.

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