Understanding Bridges

Why do engineers build bridges?

• To create more jobs

• To stop cars from moving

• To help people cross rivers and valleys

• To make cities look pretty

What is a simple example of a beam bridge?

• A wooden chair

• A long rope

• A cardboard strip between blocks

• A tall tower

What happens if too much weight is placed on a beam bridge?

• It floats

• It stretches

• It collapses

• It becomes stronger

Which shape is known for its strength in bridge building?

• Circle

• Rectangle

• Square

• Triangle

What is a truss in bridge design?

• A type of material

• A series of triangles

• A kind of paint

• A type of vehicle

What force do suspension bridges use to stay strong?

• Magnetism

• Friction

• Tension

• Gravity

What supports the cables in a suspension bridge?

• Tall towers

• Heavy rocks

• Wide beams

• Short poles

Which famous bridge is an example of a suspension bridge?

• Sydney Harbour Bridge

• Golden Gate Bridge

• Brooklyn Bridge

• London Bridge