Zero work, changing direction

Exercise and reference answers

Missing parts

1. Answer

   zero

   Choices

   1. zero
   2. maximum
   3. negative

2. Answer

   direction

   Choices

   1. direction
   2. mass
   3. charge

Complete the statement

Because the magnetic force is normal to v it does {0} work, so it changes the {1} but not the speed.

Instructions

Tap a chip from the bank to fill each blank.

Explanation