1- In the extension activity, you constructed a simple triboelectric series for the three materials in the simulation (diamond, circle and square). According to the simulation evidence, which one of the choices below is the correct order for how they should be placed in this series? A ‘1’ is for the material most likely to be positively (+) charged, a ‘2’ is equally likely to be either positively (+) or negatively (–) charged, and a ‘3’ is most likely to be negatively (-) charged

1- In the extension activity, you constructed a simple triboelectric series for the three materials in the simulation (diamond, circle and square). According to the simulation evidence, which one of the choices below is the correct order for how they should be placed in this series? A ‘1’ is for the material most likely to be positively (+) charged, a ‘2’ is equally likely to be either positively (+) or negatively (–) charged, and a ‘3’ is most likely to be negatively (-) charged.
Select one:
a.
(1) Diamond; (2) Square; (3) Circle.
b.
(1) Circle; (2) Square; (3) Diamond.
c.
(1) Diamond; (2) Circle; (3) Square.
d.
(1) Circle; (2) Diamond; (3) Square.
e.
(1) Square; (2) Circle; (3) Diamond.
f.
(1) Square; (2) Diamond; (3) Circle.
2- According to the triboelectric series shown here, what would happen if Vinyl were rubbed on Teflon?
Select one:
a.
Both the Vinyl and the Teflon would become positively (+) charged.
b.
Both the Vinyl and the Teflon would become negatively (–) charged.
c.
The Teflon would become positively (+) charged and the Vinyl would become negatively (–) charged.
d.The Vinyl would become positively (+) charged and the Teflon would become negatively (–) charged.
3- Earlier in the unit you determined that when an acrylic sheet is rubbed with a Styrofoam plate (which is a trade name for a particular form of polystyrene), the acrylic becomes positively (+) charged and the Styrofoam becomes negatively (–) charged. From this information where should acrylic be placed in the triboelectric series shown here?
Select one:
a.
Somewhere below polystyrene
b.
It is impossible to say with this information.
c.
Somewhere above polystyrene
4-You have probably experienced the phenomenon of ‘static cling’, particularly when taking your laundry out of the dryer. A student dries three separate loads of laundry as described in the choices below. For which load (if any) is she most likely to notice a large amount of ‘static cling’?
Select one:
a.
A load consisting of only cotton materials.
b.
A load consisting of only nylon materials.
c.
A load consisting of a mixture of cotton and nylon materials.
d.
All of these loads (A, B, and C) will produce a large amount of ‘static cling’.