# Wileyplus Physics Quiz 2

Physics-Quiz-2

Chapter 03, Concept Question 09

### If Vector F = q(vector V x vector B)and vector Vis perpendicular to vector B, then what is the direction of vector B in the three situations shown in the figure? (a)Situation (1),qpositive: +x (b)Situation (1),qnegative: -x (c)Situation (2),qpositive: +z (d)Situation (2),qnegative: -z (e)Situation (3),qpositive: +z (f)Situation (3),qnegative: -z Chapter 03, Concept Question 10

The figure shows vector A and four other vectors that have the same magnitude but differ in orientation.

### (a)Which pairs of those other four vectors have the same dot product with vector A? (b)Which of those other four vectors have a negative dot product with vector A? Chapter 03, Concept Question 11

In a game held within a threedimensional maze, you must move your game piece from start, at xyz coordinates (0, 0, 0), to finish, at coordinates (-2 cm, 4 cm, -4 cm). The game piece can undergo only the displacements (in centimeters) given below. If, along the way, the game piece lands at coordinates (-5 cm, -1 cm,-1 cm) or (5 cm, 2 cm,-1 cm), you lose the game. Which displacements and in what sequence will get your game piece to finish?

### Chapter 03, Concept Question 12

The x and y components of four vectors  a,b,c, and d are given below. For which vectors will your calculator give you the correct angle θ when you use it to find θ with tanθ =ay/ax? Answer first by examining the figure below, and then check your answers with your calculator.

 ax = 3 ay = 3 cx = -3 cy= -3 bx = -3 by = 3 dx = 3 dy = -3

### Chapter 03, Concept Question 13

Which of the following are correct (meaningful) vector expressions?