Hiragana
"か" is
similar in pronunciation to
"ka" in English and
"카" in Korean.

Hiragana "か"
It looks similar to "ㄱ", doesn't it?
It also looks like the kanji for "power" (力), right?

The "かきくけこ" (ka-ki-ku-ke-ko) that we'll learn from now on
is called the "か" row.

You remember, right?
We are going to learn "かきくけこ" (ka-ki-ku-ke-ko).