Forces and Strengths in Structures

What is deformation?

• A type of bicycle part

• A change in the shape or size of a structure due to applied forces

• A kind of bridge

• A way to measure weight

Which of the following is an example of an external force?

• Tension

• Compression

• Wind

• Shear

What type of strength helps a material resist being pulled apart?

• Compressive strength

• Tensile strength

• Shear strength

• Torsional strength

Which force is a twisting force?

• Compression

• Tension

• Shear

• Torsion

What type of force does a bicycle chain mostly experience?

• Compression

• Tension

• Shear

• Torsion

Which part of a bicycle mainly needs compressive strength?

• Chain

• Frame

• Pedals

• Tires

Which type of bridge uses cables suspended from tall towers?

• Beam bridge

• Arch bridge

• Suspension bridge

• Truss bridge

Which of the following is an internal force?

• Earthquake

• Wind

• Shear

• The weight of a person

What does compressive strength help a material resist?

• Being pulled apart

• Being squashed

• Twisting

• Sliding layers apart

How do materials get their strength?

• By being painted

• Through their internal structure and treatments

• By being heavy

• By being colourful