Strength and Stability (Revision)

Define a structure that is strong and stable.

• A structure that uses concrete and strong materials.

• A structure that uses strong building materials.

• A structure that is firm, strong and steady and does not collapse easily, shake or break.

What shape is represented by the diagram?

• Cylinder

• Cube

• Cone

Which factor affects the strength of a building structure?

• Construction material

• Height of the building

• Base area of the building

The diagram shows a wooden table. How to increase the stability of the table?

• Shorten its legs

• Increase the length of its legs

• Replace the legs with thinner legs

A strong building not easily crack, broken or collapse.

Which of the following are the factors that affect the strength and stability of the buliding?

• The shape of building and types of materials used

• The shape of building and the colour of building

• The types of materials used and building cost

• The colour of building and building cost

What are the main factors that must given priority when built a model?

• Total cost and the strength of the model

• Total cost and colour of the model

• The strength and stability of the model

• The stability and colour of the model

The diagram shows three blocks, K, L and M that have the same size of base area. Amongst the following, which one is correct about the stability of these blocks?

• K is more stable than L and L is more stable than M.

• K is more stable than L and M is more stable than K

• L is more stable than M and M is not stable.

• M is more stable than K and M is not stable than L

An investigation shows that the model of the bridge can easily collapse. What can be done so that the model of the bridge becomes stronger?

• Lower the model of the bridge

• Flatten the surface of the model of the bridge

• Add barriers along the model of the bridge

• Make the surface of the model of the bridge curve upward

Why does a strong and stable structure need to be built?

• So that the building can be used for a short time

• So that the building can be used for a long time and is safe

• So that the building materials are always repaired

Which of the following are the materials needed to build a strong building?

• Steel and concrete

• Steel and glass

• Concrete and glass

• Concrete and plastic