Exam (elaborations)
NST1502 ASSIGNMENT 03 | SEMESTER 2 | DUE: 13 AUGUST 2024 |
- Institution
- University Of South Africa (Unisa)
NST1502 ASSIGNMENT 03 | SEMESTER 2 | DUE: 13 AUGUST 2024 |
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,QUESTION 1: Indicate Whether True/False1.1 False – Energy cannot be created or destroyed; it can only be
transferred or converted from one form to another.
1.2 True – Electrical circuits require a complete, unbroken path for the flow
of electric current.
1.3 True – Learning styles refer to the different ways individuals prefer to
process and understand information.
1.4 True – In a series circuit, the total resistance is equal to the sum of the
individual resistances.
1.5 False – Kinetic energy is the energy of motion, while potential energy is
the energy stored in an object due to its position or elevation.
1.6 True – In an electrical circuit, current flows from the positive terminal of
the battery to the negative terminal.
1.7 True – Capacitors store electrical energy in the form of an electric field.
1.8 True – Energy is conserved in all physical and chemical processes; it
cannot be created or destroyed.
1.9 False – In parallel circuits, the total resistance is always less than the
individual resistances.
, 1.10 False – Learning styles are not fixed; they can develop or change
over time.
QUESTION 2
Here are definitions for each term:
2.1 Kinetic Energy
Kinetic energy is the energy an object possesses due to its motion. It is
dependent on both the mass of the object and its velocity, calculated using
the formula KE= 1/2 MV2 where m is mass and v is velocity. As an object
moves faster or has a greater mass, its kinetic energy increases. This type
of energy is observed in all moving objects, from a rolling ball to flowing
water and even molecules in a gas.
2.2 Potential Energy
Potential energy is the energy stored in an object due to its position or
configuration. It can be gravitational, elastic, or chemical. Gravitational
potential energy is given by PE = mgh, where m is mass, g is the
acceleration due to gravity, and h is height. For example, a rock at the edge
of a cliff has high gravitational potential energy because of its elevated
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