dealing with different sObjects in one List

List<String> sObjectNames = new String[]{'Account','Contact','opportunity'};


List<sObject> queriedObjects = new List<Sobject>();

For (String sObjectName : sObjectNames) {
	//Querying for objects in a loop is bad practice
	sObject tempObject = Database.query('Select Id, Name From ' + sObjectName + ' Limit 1');
	queriedObjects.add(tempObject);
}

For (sObject mysObject : queriedObjects) {
    //fails for contact since contact has no updateable name attribute/field
    try {
    	//dealing with generic sObject is different than dealing with e.g. Account. You can use Account.Name but not sobject.Name 
	mysObject.put('Name', 'New '+ mySobject.get('Name'));
        system.debug(mySobject.get('Name'));
	// => 'New Pyramid Constructions'
    }
    catch (exception e) {
        //do nothing
    }
}
update queriedObjects;