Question 1.

Part A. A proton spit out from the Sun hurtles heads towardEarth -- directly at you! In what direction does the earth'smagnetic field nudge it?

North, East, South, or West? Choose One.

Part B: At home during a break from classes, you visit yourgrandparents who still have a tube-type television, with the deepand heavy case. (In them, a beam of electrons fired from the centerrear of the picture tube is steered to 'paint' an image on thefront of the tube.)  Their living room is arranged sothat the TV is on the north wall of the house, facing south. Inwhich direction, if ever so slightly, does the weak magnetic fieldof the earth deflect the electron beam inside the tube?

Up, Down, Left, Right or The beam is not affected at all? Chooseone.

Part C: Later, you go to the guest room to get ready for bed.Your grandparents have another old tube type television in thatroom, this time on the west wall, facing east. Now which way arethe electrons in the tube deflected, if ever so slightly?

Up, Down, Left, Righ, or Not At All? Choose one.

Part D: A velocity selector, as in the previous question, worksto select ions of a particular speed because

-the electric and magnetic fields both depend on the speed ofthe ions.

-neither the electric nor the magnetic fields depend on thespeed of the ions.

-the magnetic force on an ion depends on its speed, but theelectric force does not.

-the electric force on an ion depends on its speed, but themagnetic force does not.

Choose one.