Question 1: Describe how adding texture can enhance a 3D model. Give two specific examples of textures that could be used and explain their effects.

Answer: Adding texture can make a 3D model more realistic and interesting. Examples include a rough texture for bark on a tree model to mimic real bark, and a smooth texture for a ceramic vase to give it a polished appearance.

Question 2: Explain the difference between a solid form and a hollow form in 3D design.

Answer: A solid form is a fully filled object with volume, like a cube or sphere. A hollow form has an empty space inside, like a cup or a shell, with walls that define its shape.

Question 3: Identify two materials commonly used in 3D modeling and discuss one advantage of each.

Answer: Clay is flexible and easy to shape, making it ideal for detailed models. Cardboard is lightweight and inexpensive, suitable for creating prototypes or structural models.

Question 4: Draw a simple 3D object that combines at least two different shapes. Use the space below and label each shape.

Answer: A correct sketch would show a combination of basic shapes, such as a cylinder attached to a cube, with clear labels indicating each shape.

Question 5: Sketch a basic design for a small sculpture that could be made from clay. Include details on the form and any textures you would add.

Answer: A suitable sketch would depict a small sculpture, such as an animal or abstract shape, showing the overall form and indicating where textured surfaces or patterns could be added.

Question 6: Describe the process of creating a 3D model using paper. What are the key steps involved?

Answer: First, plan and draw the shapes needed. Cut out the paper pieces carefully. Fold or score edges as needed. Assemble the parts using glue or tape to form the 3D object.

Question 7: Explain how shading can be used to give a 3D appearance to a drawing of a geometric shape.

Answer: Shading creates the illusion of light and shadow on the shape, highlighting its curves and edges. Darker areas suggest shadowed parts, while lighter areas indicate where light hits directly.

Question 8: Sketch a simple design for a handle that could be attached to a box. Think about how it would be comfortable to hold and how it would look in 3D.

Answer: A correct sketch would show a handle with smooth curves, possibly an ergonomic shape, attached to a box, with clear indication of depth and perspective.

Question 9: List two techniques used to make a 3D object appear more realistic in a drawing or model.

Answer: Using shading to create depth and adding texture to surfaces are two techniques that make 3D objects appear more realistic.

Question 10: Describe how symmetry can be useful in designing a balanced 3D object. Provide an example.

Answer: Symmetry helps create balanced and aesthetically pleasing designs. For example, a symmetrical vase ensures both sides are identical, making it stable and visually harmonious.