100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
Previously searched by you
Previously searched by you
logo
NST1502 Assignment 4 PORTFOLIO (COMPLETE ANSWERS) 2024 - DUE 8 October 2024 ; 100% TRUSTED Complete, trusted solutions and explanations. R46,53   Add to cart
Quickly navigate to
Preview
  2.  
  3. University Of South Africa
  4.  
  5. NST1502

Exam (elaborations)

NST1502 Assignment 4 PORTFOLIO (COMPLETE ANSWERS) 2024 - DUE 8 October 2024 ; 100% TRUSTED Complete, trusted solutions and explanations.
 7 views  0 purchase

NST1502 Assignment 4 PORTFOLIO (COMPLETE ANSWERS) 2024 - DUE 8 October 2024 ; 100% TRUSTED Complete, trusted solutions and explanations.

Preview 2 out of 12  pages

Document information

  • October 4, 2024
  • 12
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

  • nst1502 assignment 4 portfolio complete answers

Connected book

book image

Book Title:

Author(s):

  • Edition:
  • ISBN:
  • Edition:

More summaries for

All for this textbook (5)

Written for

All documents for this subject (61)

Seller

avatar-seller
Seller28

Reviews received

Content preview

, QUESTION 1 Energy Basics [18 marks] 1.1 Define and explain the different
forms of energy, providing real-world examples for each. (Focus on the
following forms of energy; Kinetic energy; potential energy; thermal energy;
chemical energy; electrical energy, light energy, and sound energy). (14) 1.2
Discuss the concept of energy transformation, giving examples of how one
form of energy can be converted into another. (4)

1.1 Forms of Energy

Energy is the ability to do work or cause change, and it exists in various forms that can be
converted from one to another. Below are the different forms of energy, with definitions and
real-world examples:

1. Kinetic Energy

Definition: Kinetic energy is the energy of an object due to its motion. The amount of kinetic
energy an object has depends on its mass and speed.

 Formula: KE=12mv2KE = \frac{1}{2}mv^2KE=21mv2, where mmm is mass and vvv
is velocity.
 Example: A car moving at high speed has kinetic energy. The faster the car moves, the
more kinetic energy it has.

2. Potential Energy

Definition: Potential energy is the energy stored in an object because of its position or state.
There are different types of potential energy, such as gravitational potential energy and elastic
potential energy.

 Example: A rock perched on a cliff has gravitational potential energy due to its height
above the ground. If the rock falls, this potential energy is converted to kinetic energy.

3. Thermal Energy

Definition: Thermal energy, or heat energy, is the energy that comes from the movement of
particles in an object. The faster the particles move, the more thermal energy the object has.

 Example: A cup of hot coffee has thermal energy because the molecules in the liquid are
moving rapidly. As the coffee cools down, the thermal energy decreases.

4. Chemical Energy

Definition: Chemical energy is the energy stored in the bonds of atoms and molecules. This
energy is released or absorbed during chemical reactions.

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

Guaranteed quality through customer reviews

Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.

Quick and easy check-out

Quick and easy check-out

You can quickly pay through EFT, credit card or Stuvia-credit for the summaries. There is no membership needed.

Focus on what matters

Focus on what matters

Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!

Frequently asked questions

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

Satisfaction guarantee: how does it work?

Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.

Who am I buying this summary from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller Seller28. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy this summary for R46,53. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

66579 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy summaries for 14 years now

Start selling
R46,53
  • (0)
  Buy now