10
15
Positively (negatively) charged : 正 (負 )
因で besaid to 一 : ーする・一であると言われている
When you rub a plastic ruler on your head!,
your hair sticks to the ruler. This happens because
of static electricity.
The plastic ruler has equal numbers of
positive and negative charges before it is rubbed.
These charges balance each other. It is said to be
electrically neutral.
However, rubbing it upsets this balance.
When the ruler is rubbed against your har,
negative charges travel from the hair to the ruler.
The ruler now has more negative charges than
positive charges. It has become negatively charged.
Because the negative charges have left the hanr,
it now has more pos1tive charges than negative
charges. It has become positively charged. Such
an imbalance of electric charges is called static
electricty.
ほしている because of 一
・ のために・一が全
5
2-01-04
electric [ilCktrik]
charge [UIG:7d53]
rub [rAb]
ruler [ru:ls/
stick [Stik]
static [stietik]
electricitY
[ilektrisati]
balance [blans]
electrically
[ilektrikali]
neutral [n/u:tral]
upSet [ADSCt]
negatively
[negstivli]
positively
[pezitivli]
imbalance
[imbslsns]
