Question

How Gulls Use Energy Conversions (flowchart summary)
- Gull lifts oyster → oyster’s gravitational potential energy increases.
- Gull drops oyster → gravitational potential energy converts to kinetic energy as the oyster falls.
- Oyster strikes rocks → kinetic energy is converted into mechanical energy of breaking (and some thermal and sound energy).
- Oyster opens/breaks → gull eats the food. in grade terms

Answer 1

Here’s a simple flowchart summary in grade-level language (upper elementary / middle school):

Gull uses energy from its muscles (chemical energy from food) → lifts oyster
→ oyster gains gravitational potential energy (stored energy because it’s up high)
→ gull drops oyster → oyster falls and gains kinetic energy (energy of motion)
→ oyster hits rock → kinetic energy becomes mechanical energy that breaks the shell (plus some sound and a little heat)
→ oyster opens → gull eats and gets chemical energy from the oyster

Short definitions:
- Chemical energy: energy stored in food that the gull uses to move.
- Gravitational potential energy: stored energy an object has because of its height.
- Kinetic energy: energy of a moving object.
- Mechanical energy of breaking: the energy that does the work of cracking the shell (also partly released as sound and heat).