Can physical abuse proved without evidence?

Nothing can be proved without evidence. There are different kinds of evidence, some more convincing than others.

Circumstantial evidence - This is when you get people to tell the court that they saw you get abused, or they can say the heard you being abused. This can be used in court, but it is not very convincing to the judge or jury.

Hearsay evidence - This cannot be used in court, because it is not very reliable. An example of hearsay would be, "Paul told linda who told charlie who wrote a letter to Andrea saying that Phillip was being abused." This is not very credible.

Physical evidence is the most convincing, this would be like, taking a picture of a bruise.

Finally, it is very important that if you know someone who is being abused or if you are being abused yourself, you MUST contact somebody to get help. Contact a relative, contact the police, tell a teacher, call a lawyer, or call protective services. Nobody has the right to abuse anybody, and abuse must be stopped. Do not be afraid to ask for help or to help another person.