NST1502
ASSIGNMENT 4 (PORTFOLIO)
DUE DATE: 8 October 2024
Written Assignment Submission Guidelines:
Please ensure that your assignment is submitted electronically through the myUnisa platform no
later than October 2024. Kindly note that fax or email submissions will not be accepted.
NB: Assignment submitted to the lecturer(s) through email will not be considered.
QUESTION 1
QUESTION 1: Energy Basics [18 marks]
1.1 Define and explain the different forms of energy, providing real-world examples for each. (14)
ANSWER:
Different Forms of Energy:
• Kinetic Energy: This is the energy that an object possesses due to its motion. The faster an
object moves, the more kinetic energy it has. Example: A car speeding on a highway.
• Potential Energy: Energy stored in an object because of its position or configuration. This
energy can be released and converted into kinetic energy. Example: Water stored behind a
dam has potential energy due to its height.
• Thermal Energy: Also known as heat energy, this is the energy that comes from the movement
of atoms and molecules in a substance. The higher the temperature, the more thermal energy
the substance has. Example: The heat from a stove used to boil water.
ASSIGNMENT 4 (PORTFOLIO)
DUE DATE: 8 October 2024
Written Assignment Submission Guidelines:
Please ensure that your assignment is submitted electronically through the myUnisa platform no
later than October 2024. Kindly note that fax or email submissions will not be accepted.
NB: Assignment submitted to the lecturer(s) through email will not be considered.
QUESTION 1
QUESTION 1: Energy Basics [18 marks]
1.1 Define and explain the different forms of energy, providing real-world examples for each. (14)
ANSWER:
Different Forms of Energy:
• Kinetic Energy: This is the energy that an object possesses due to its motion. The faster an
object moves, the more kinetic energy it has. Example: A car speeding on a highway.
• Potential Energy: Energy stored in an object because of its position or configuration. This
energy can be released and converted into kinetic energy. Example: Water stored behind a
dam has potential energy due to its height.
• Thermal Energy: Also known as heat energy, this is the energy that comes from the movement
of atoms and molecules in a substance. The higher the temperature, the more thermal energy
the substance has. Example: The heat from a stove used to boil water.
