A metal bar moves with constant speed to the right. A constant magnetic field points out of the page. What happens to the electrons in the bar (in the frame of the moving bar)?

1. Nothing
2. They move upward
3. They move downward
4. They move left
5. They move right

One end of rectangular metal loop enters a region of constant uniform magnetic field $\mathbf{B}$, with initial constant speed $v$, as shown. What direction is the magnetic force on the loop?

1. Up the "screen" $\uparrow$
2. Down the "screen" $\downarrow$
3. To the right $\rightarrow$
4. To the left $\leftarrow$
5. The net force is zero

One end of rectangular metal loop enters a region of constant uniform magnetic field $\mathbf{B}$, out of page, with constant speed $v$, as shown. As the loop enters the field is there a non-zero emf around the loop?

1. Yes, current will flow CW
2. Yes, current will flow CCW
3. No

A rectangular metal loop moves through a region of constant uniform magnetic field $\mathbf{B}$, with speed $v$ at $t = 0$, as shown. What is the magnetic force on the loop at the instant shown? Assume the loop has resistance $R$.

1. $2L^2 vB^2/R$ (right)
2. $2L^2 vB^2/R$ (left)
3. 0
4. Something else/not sure...