Grade 8 Technology Test (TVM)

What type of structure is a bridge?

• Shell structure

• Frame structure

• Solid structure

• Hybrid structure

Which shape is the strongest for building structures?

• Square

• Circle

• Triangle

• Rectangle

Which force causes structures to be pulled apart?

• Torsion

• Tension

• Compression

• Shear

A pulley system is used to:

• Increase friction

• Lift heavy loads

• Reduce stability

• Decrease speed

In a lever system, what is the pivot point called?

• Load

• Effort

• Fulcrum

• Gear

Gears are used in machines to:

• Store energy

• Increase friction

• Transfer motion

• Reduce pressure

What is the main purpose of a strut in a structure?

• Resist tension

• Absorb sound

• Resist compression

• Increase weight

Which material is commonly used in constructing strong frame structures?

• Glass

• Plastic

• Steel

• Rubber

The mechanical advantage of a lever depends on:

• The length of the effort and load arms

• The speed of movement

• The weight of the structure

• The material used

Suspension bridges use which main structural element?

• Beams

• Arches

• Cables

• Columns