Practice question · Select all that apply
Which are true of the condition for an object to stand?
Hints
- Three follow from the stability condition; one confuses weight with stability.
- A heavy object with a high narrow centre topples easily.
Show the answer
- B. The vertical through the centre of mass must fall inside the base of support
- C. A projecting element moves the centre of mass towards it
- D. A wider base increases stability
Why
Weight alone settles nothing, a heavy object with a high centre over a narrow base topples readily, and a light one with a wide base does not. Stability is about the geometry of where the mass sits relative to the base, which is why it can be designed.
Practise Structure, Armature and the Centre of Mass
The app has 4 more questions on this lesson, and keeps your place in the course. Sculpture I is free to start.
More questions on Structure, Armature and the Centre of Mass
- Why does lowering the centre of mass make a sculpture more stable, given the same base?
- Complete the account of standing up.
- An armature must be removed before a model is moulded and cast, exactly as it must before firing.
- A sculpture leans until the vertical through its centre of mass reaches the edge of its base. What happens…
- Sort each design move by what it does to stability.
- Arrange these decisions in the order they should be taken.
- Arrange these approaches to a ceramic armature from the least to the most intervention required after…
- An armature prevents soft clay from slumping during modelling, but clay shrinks as it dries. What follows…