Question

Write the type(s) of energy found in the following examples:

i. Kerosene
ii. Stretched rubber
iii. Water stored in a reservoir
iv. Bread - chemical energy
v. Rolling stone
vi. Red hot iron
vii. Pendulum clock
viii. Falling apple
ix. Leg lifted to kick a football
x. Dry cell

Answer 1

The types of energy found in the examples range from chemical potential energy in kerosene and bread, to kinetic energy in a rolling stone and thermal energy in red hot iron, among others.

Step-by-step explanation:

Energy can be categorized primarily into kinetic energy and potential energy. Here is the type of energy associated with each example given:

1. Kerosene: Chemical potential energy
2. Stretched rubber: Elastic potential energy
3. Water stored in a reservoir: Gravitational potential energy
4. Bread: Chemical potential energy
5. Rolling stone: Kinetic energy
6. Red hot iron: Thermal energy (a form of kinetic energy)
7. Pendulum clock: Both kinetic energy and gravitational potential energy (it converts between the two as it swings)
8. Falling apple: Both gravitational potential energy (at the start) and kinetic energy (as it falls)
9. Leg lifted to kick a football: Mechanical potential energy
10. Dry cell: Chemical potential energy

Understanding the various types of energy can help us comprehend how energy is stored and transferred in different systems.