A single image within the complete animation sequence is called what?

What are the frames called that are manually created, and are the important frames that are used to automatically create the in-between frames from?

The process where the content of the frames between the keyframes are created automatically by the animation software so that the animation glides smoothly from one keyframe to the next is called what?

You set up a clay model or some other kind of model, then take a photograph and store the image. Then alter the model slightly such as moving an arm, leg, face and so on, then take another image. You carry on doing this until the whole story has been told.

What does the above describe?

A live actor is filmed doing the actions required - a sword fight maybe. Then the animator takes the video into an animation package and draws around the actor, frame by frame. What is this technique called?

Animation has many practical purposes. Which of the below could use animation?

Planning an animation requires essential planning. This is where an artist draws a number of sketches that show key points within the story. What is this technique called?

These are used to give an idea to the animator of the overall 'feel' for the story.

What are the disadvantages of animation?

What are the advantages of animation?