These "Scottish notes" are widely accepted throughout the United Kingdom, although cases have been reported of a few shops outside Scotland refusing them (check out this discussion about scottish money).
You will, however, not have a problem when using English notes anywhere in Scotland. If you are visiting from further afield, it is usually wisest to exchange your money into the local currency. Scotland is a well developed country with a good economic infrastructure.
For the average tourist, this means that they will find it relatively easy to get about and to exchange their money.
Scotland also does not have any import or export restrictions on any form of money so visitors will not have to fret about whatever currency they carry into the country with them.
The currency of Scotland is the GBP Pound (£).
One pound is comprised of 100 pence and coins can be obtained in 1p, 2p, 5p, 10p, 20p, 50p, £1 and £2 denominations. Bank notes are commonly divided into £5, £10, £20 and £50 amounts.
Scottish banks also issue a £1 notes which can be used as legal tender anywhere in the United Kingdom.
Money can be exchanged in banks, at foreign exchange bureaus and hotels.
The exchange bureaus are generally open for longer than banks are but charge higher commission rates.
Banks are usually open from 9:30am to 4:30pm from Monday to Friday. Some banks are also open on Saturdays.
If you plan to use American Express, MasterCard or Visa Cards, you will find that credit cards and debits cards are widely accepted.
The same is true of Travelers cheques which should be in GBP to avoid extra exchange rate charges. There are also a multitude of ATMs available throughout Scotland so you will have easy access to cash.