Question

4.
There are
fundamental physical quantities
5.
1 kilometre is equal to
metres
number of​

Answer 1

Answer:

4.The units in which they are measured are thus called fundamental units. In this textbook, the fundamental physical quantities are taken to be length, mass, time, and electric current. (Note that electric current will not be introduced until much later in this text.)

5.1000metres

Answer 2

1000 meters = 1 kilometer