Question 1: Describe the difference between a solid and a hollow 3D form. Give an example of each.

Answer: A solid 3D form is completely filled with material and has no hollow spaces inside, like a cube or sphere. A hollow 3D form has empty space inside, like a box with an open top or a tube.

Question 2: Explain the purpose of using shading techniques when creating a 3D drawing.

Answer: Shading adds depth and dimension to a drawing by showing light and shadow, making the object appear more realistic and three-dimensional.

Question 3: List three different materials that can be used in 3D modelling and briefly describe their use.

Answer: Clay for sculpting detailed forms, paper or card for constructing models, and wire for creating frameworks or armatures.

Question 4: Sketch a simple 3D geometric shape, such as a cube, cylinder, or cone. Use shading to suggest light coming from one direction.

Answer: A correct sketch would clearly show a geometric shape with visible edges, perspective lines, and shading on one side to indicate light source and shadow.

Question 5: Describe the process of creating a basic armature for a small sculpture. Why is an armature important?

Answer: An armature is made by shaping wire or similar material into a basic skeleton that supports the sculpture. It is important because it provides stability and helps maintain the correct proportions during modelling.

Question 6: Identify and explain two different surface textures that can be created in 3D work.

Answer: Rough texture can be created by adding uneven surfaces, like bark or stone. Smooth texture is achieved by polishing or carving to create a sleek, shiny surface.

Question 7: Design a small, functional container (like a box or jar) in 3D. Include details that show how the parts fit together.

Answer: A successful sketch would show different views of the container, with lids, hinges, or handles as appropriate, and clear lines indicating how parts connect.

Question 8: What is meant by the term 'perspective' in 3D design? Why is it important?

Answer: Perspective is the technique of representing three-dimensional objects on a two-dimensional surface to give the illusion of depth and space. It is important for creating realistic images.

Question 9: Describe how you would create a textured surface on a clay sculpture to mimic the appearance of rough stone.

Answer: You could use tools like a wire loop or sponge to roughen the surface, adding uneven bumps and grooves to resemble stone texture.

Question 10: Sketch a simple chair in 3D, showing the seat, backrest, and legs. Add shading to give it volume.

Answer: A good sketch will depict the chair with perspective, clearly showing the different parts with shading to suggest light and shadow, emphasizing its three-dimensional form.