music: 60's Chart Toppers: Name The Artist: I Don't Want to Spoil the Party?

Questions

The pivot point of a lever is called the _________.?

The process of water changing to water vapor is known as _______.?

The rate of change of velocity is known as _________.?

The visible spectrum of light ranges from red to ________.?

Two 1.5 volt batteries, when connected in series, produces _ volts.?