Apart from the obvious difficulties of attempting to speak in a vacuum, there would be no sound because sound is vibrations of a supporting medium, normally air. The folks on the moon landings communicated by radio, by speaking and listening in their (air-filled) helmets.
The vacuum becomes no longer a vacuum.
convection
If your cleaning the vacuum does that make you the vacuum cleaner?
Cathode rays in a vacuum would travel until stopped (or deflected by an electromagnetic field).
Yes, radiation can occur in a vacuum. Radiant energy, such as light or heat, can travel through a vacuum because it does not rely on a medium to propagate. This means that even in the absence of air or any other material, radiation can still be present.
In a vacuum, sound cannot travel because there are no air molecules to transmit vibrations. This means that any form of communication that relies on sound, such as speaking, would not be possible in a vacuum. Additionally, in a vacuum, there is no medium for light to travel through, causing darkness.
You would not be able to speak.
That's because sound won't transfer in a vacuum.
Nothing will happen. It will continue to be a bell, its metallic composition will not change, nor will its shape, colour, etc.
nada
We would quickly have no friends.
toy might get hot in there because of the motor and you might die