Introduction to materials: density

Introduction to materials: density

Finding the density

Calculating the density

Introduction to springs

Tensile and compressive forces

Restoring force

Hooke’s law and the force constant

Finding the force constant

Calculating the force constant

Elastic limit for springs

What is elastic potential energy?

Calculating elastic potential energy

Work done

Match up the equations

Stretching wires – the variables

What is the Young modulus?

Young modulus calculation: example

Stress–strain graphs

Finding the Young modulus from graphs

Stiffness, strength and toughness

More about properties of materials

Investigating stress–strain graphs

Different types of material

Measuring the Young modulus

Young modulus calculations

Glossary