Question

directions. the left - column gives an example of an object or situation. in the columns on the right, state what initial and final forms of energy are present as part of the energy transformation. include any intermediary forms as well if there are any. the first is completed for you as an example.
science class period: 2
object / situation\tinitial form of energy\tfinal form(s) of energy

1. hair dryer\telectrical energy (cord)\tmechanical (fan & wind) and thermal (heater & hot air)
2. cheetah running
3. log burning
4. mouse trap
5. flashlight
6. windmill
7. light bulb
8. nuclear bomb\tnuclear - energy

Explanation:

Step1: Analyze cheetah running

A cheetah uses stored chemical energy in its body (from food) to run. The initial form is chemical energy. The final form is mechanical energy (kinetic energy of its motion) and some thermal energy due to muscle - friction and metabolism.
Initial: Chemical Energy; Final: Mechanical (kinetic) and Thermal

Step2: Analyze log burning

A log has stored chemical energy. When it burns, the chemical energy is released as thermal energy (heat) and light energy.
Initial: Chemical Energy; Final: Thermal and Light

Step3: Analyze mouse - trap

A set mouse - trap has elastic potential energy stored in its spring. When it is triggered, the elastic potential energy is converted into mechanical energy (kinetic energy of the moving parts).
Initial: Elastic Potential Energy; Final: Mechanical (kinetic)

Step4: Analyze flashlight

A flashlight uses chemical energy stored in its batteries. This chemical energy is converted into electrical energy which is then converted into light energy and some thermal energy (due to resistance in the bulb).
Initial: Chemical Energy; Final: Light and Thermal

Step5: Analyze windmill

A windmill takes in the kinetic energy of the wind (mechanical energy). It converts this mechanical energy into electrical energy (if it is a wind - turbine for electricity generation).
Initial: Mechanical (kinetic of wind); Final: Electrical

Step6: Analyze light bulb

A light bulb gets electrical energy from a power source. This electrical energy is converted into light energy and thermal energy (due to the resistance of the filament).
Initial: Electrical Energy; Final: Light and Thermal

Step7: Analyze nuclear bomb

A nuclear bomb has nuclear energy. When it explodes, this nuclear energy is converted into thermal energy (heat), light energy, mechanical energy (shock - wave and debris motion) and radiation energy.
Initial: Nuclear Energy; Final: Thermal, Light, Mechanical and Radiation

Answer:

Object / Situation	Initial form of Energy	Final form(s) of energy
3. Log Burning	Chemical Energy	Thermal and Light
4. Mouse Trap	Elastic Potential Energy	Mechanical (kinetic)
5. Flashlight	Chemical Energy	Light and Thermal
6. Windmill	Mechanical (kinetic of wind)	Electrical
7. Light Bulb	Electrical Energy	Light and Thermal
8. Nuclear Bomb	Nuclear Energy	Thermal, Light, Mechanical and Radiation