The following shows the electric field created by the point charge q with an electric force line. Which of the following statements is incorrect? ABCD O To transfer the (+)point charge from point C to point A, you must do a positive (+) job. 2 Moving the (-)point charge from point C to point A requires positive (+) work. 3 If you place a (+) charge at point D, it receives a force to the right. 4 The potential of point D is lower than point A.

Find the electric field (magnitude and direction) at the point shown in the picture. Must show detailed work and a free body diagram.

Three, equal, positive, point charges are moved through a uniform electric field as shown in the diagram below. Let  W1, W2, and W3 equal the amount of work done by the electric field on charges q1, q2, and q3 respectively. Which of the following statements is true? a. W3 < W2 < W1  b. W2 > W3 > W1  c. W1 = W2 = W3  d. W1 < W2 < W3  e. W1 > W3 > W2

A positively charged ball is dropped into a tube with another positively charged ball at the bottom. It falls a certain distance before turning around. Draw an energy bar chart consistent with this. Take the initial point to be at the top immediately after release and the final point where it turns around. Write an energy equation for this situation, indicating various distances on a sketch. State what your system is and any assumptions you needed to make. Draw qualitatively accurate force diagrams for the dropped ball for the initial and final positions. Write Newton’s 2nd Law equations for the initial and final positions