this question doesn't make sense as Scotland is in the UK. If you mean "do you need a passport to travel between England and Scotland" then the answer is no. Unless you are flying, in which case you will need some form of photo ID such as a passport or driving license.
No.
No, for domestic flights, you will need a form of photographic ID, not necessarily a passport.
It depends. If you are an English or Welsh citizen, then you can certainly cross the border into Scotland without any passport. It's all the same nation, the United Kingdom. If you are a foreign national, then you will need a passport to enter the UK, whether you are trying to arrive at (for example) Manchester Airport in England, or Glasgow Airport in Scotland. However assuming you gained legal entry to England, you can then travel around the UK as there are no border checks in between England and Scotland, or Scotland and Wales.
You will not require a passport to travel from Sunderland, England to Falkirk, Scotland.
You don't need any form of passport to cross the border between England and Scotland as they are the same nation. It's possible that the airline may require a passport for identification though.
Not if they start the journey in England.
Do u need a passport from scotland via dunegal going by ferry
NO
Yes you do. Whether you are leaving the UK by air, ferry or Channel Tunnel you need a passport and you also need one to return.
Yes, Scotland is out side of the U.S.
You don't need a passport to travel between England and Scotland. They are both part of the UK. However, most airlines now insist that you produce a valid photo ID before you board an aircraft - regardless of where that aircraft is flying to. A valid passport - from any country - is the easiest way of doing that.