is this right??

Question

Select the choices in which work is done by recording "yes" or "no":

a. Reese completing her chemistry homework
b. the movers carrying Catalina's amplifier from the moving truck to her house
c. Li pushing his motorcycle down his driveway
d. Reese carrying several encyclopedias
e. Catalina picking up a piece of sheet music from the floor
f. Cory pushing a stalled car but unable to get it to move
g. pushing a science book along a table

my answers

a. yes
b. yes
c. yes
d. yes
e. yes
f. no
g. yes

Answer 1

I assume this is a physics question...

Work is applying a force to cause a displacement (W=F*s)

So, in any of your examples, if there is not both force and displacement, it's not considered work. So, I would say...

a. no
b. yes
c. yes
d. yes
e. yes
f. no
g. yes

Answer 2

I agree with your answers as long as she's moving a pencil or pen in part A. Work has to be moving a mass through a distance.

Answer 3

a - no
b - no - if it is flat ground and not counting picking it up or putting it down.
c - no - if it's just the act of pushing and no friction
d - no - if she doesn't pick them up or put them down.
e -yes -
f - no -
g - yes -