Which is stiffer

Exercise and reference answers

Questions

1. A

   Steel

   B

   Aluminium

   Higher value

   Steel

2. A

   Wood

   B

   Copper

   Higher value

   Copper

3. A

   Concrete

   B

   Wood

   Higher value

   Concrete

4. A

   Aluminium

   B

   Steel

   Higher value

   Steel

5. A

   Copper

   B

   Aluminium

   Higher value

   Copper

Instructions

Tap the material with the larger Young's modulus.

Explanation