Question

Which of the following statements is not true? Group of answer choices A beat is the basic unit of time in music In EarSketch, measures always have four beats Beats always last one second Higher tempo means more beats per minute

Answer 1

The incorrect statement is 'Beats always last one second'.

In music, beats vary in duration with the tempo. For the hummingbird, the scientist should use seconds, specifically milliseconds, to measure the wing beats.

Step-by-step explanation:

Tempo is measured in beats per minute (BPM), and a higher tempo means that there are more beats in a minute, implying that each beat is shorter than at a slower tempo.

In EarSketch, while measures may commonly have four beats, this is not a strict rule as different musical pieces can have different time signatures. Therefore, measures do not always have to have four beats.

In relation to the Check Your Understanding question about the hummingbird's wing beats, the scientist should use the fundamental unit of seconds to measure the time it takes for a hummingbird to beat its wings once.

Given that some hummingbirds beat their wings more than 50 times per second, the scientist would use milliseconds (ms) or 10-3 seconds to describe the motion precisely. The metric prefix corresponding to this factor of 10 is 'milli'.