UX vs UI (What the heck is the difference? Are they interchangeable?

I’m stuck on a Website Design question and need an explanation.

Read:

  1. The simple, straightforward explanation: UX vs UI Design (How to Easily Tell the Difference) (Links to an external site.)

    and/or

  2. Quick read but defines skills, responsibilities a bit more: UX vs UI — The Difference Between UX And UI Design (Links to an external site.)

    and/or

  3. (Links to an external site.)If you’d prefer to ‘watch’: (Note: there are a few seconds where he ‘plugs’ Linode in the middle-ish and again at the end. Just ignore—it’s just a few seconds. Fun fact: Linode’s headquarters are in Old City, Philadelphia (Links to an external site.).)

Choose one of the following to share

  1. example (screenshot and link) of a BAD or GOOD User Interface
    • Add label ‘good UI’ or ‘bad UI’
    • HINT: Fundamentally, a good user interface enables users to complete the task that they came to the website to do with ease and without confusion
  2. example (link) of a brand that offers a GOOD or BAD UX
    • Add label ‘good UX’ or ‘bad UX’
    • HINT: User experience are the realities of how a design is experienced by people. The term is commonly applied to efforts to design things from the perspective of users. This requires an understanding of user needs, expectations and the end-to-end set of experiences that can occur with a product or service.