Three statements about electric charge are given. 1 An ammeter directly measures how much electric charge is in an object.
2 A moving electric charge can be detected by an ammeter.
3 A flow of electric charge is an electric current.
Which statements are correct?
A 1 and 2 only B 1 and 3 only C 2 and 3 only D 1, 2 and 3

This chart shows characteristics of three different types of waves. which statement is best supported by the information in the chart? wave x and wave y are mechanical waves, and wave z is an electromagnetic wave. wave x and wave y are electromagnetic waves, and wave z is a mechanical wave. wave x and wave z are electromagnetic waves, and wave y is a mechanical wave. wave x and wave z are mechanical waves, and wave y is an electromagnetic wave.

Which of the following is not a physical property of mattera. melting pointb. heat of combustionc. viscosityd. boiling point

Ais not a mixture. colloid compound suspension solution