Question

1. review the powerpoint titled \simple machines and energy transfer\.

complete the notes below.

energy is defined as

anything in motion, or with the potential to gain motion, may therefore
be considered as having energy.

give an example of each of the following types of energy:

a) kinetic energy
b) potential energy
c) chemical energy
d) thermal energy

Explanation:

Part 1: Define Energy

Energy is the capacity to do work. This is a fundamental definition in physics (a subfield of Natural Science) where energy is what allows objects to move, change, or exert force.

Kinetic energy is energy of motion. A moving car has kinetic energy because it is in motion, and the formula $KE = \frac{1}{2}mv^2$ (mass × velocity² / 2) applies here.

Potential energy is stored energy (often due to position). A book on a shelf has gravitational potential energy because it could fall (gain motion) due to gravity. The formula for gravitational potential energy is $PE = mgh$ (mass × gravity × height).

Answer:

the capacity to do work

Part 2: Examples of Energy Types

a) Kinetic Energy