UNIVERSITY OF SOUTH AFRICA (UNISA)
College of Education: Department of Science and Technology Education
⋄
NATURAL SCIENCES AND TECHNOLOGY
FOR THE CLASSROOM 2
Assignment 04 (Portfolio) — 2026
⋄
Module Code: NST1502
Module Name: Natural Sciences and Technology for the
Classroom 2
Assignment No.: 04 (Portfolio)
Due Date: 16 October 2026
Year: 2026
Total Marks: 100
Submitted in partial fulfilment of the requirements for
Natural Sciences and Technology for the Classroom 2 at the University of South Africa.
, UNISA | NST1502 Assignment 04 (Portfolio)
Question 1: Multiple-Choice Questions
1.1 Which molecule is regarded as the main energy currency of a cell?
A. ADP B. ATP
C. DNA D. Glucose
Answer: B. ATP
1.2 In which organelle does photosynthesis take place?
A. Mitochondrion B. Nucleus
C. Chloroplast D. Ribosome
Answer: C. Chloroplast
1.3 Which type of respiration occurs in the absence of oxygen?
A. Aerobic respiration B. Anaerobic respiration
C. Photosynthesis D. Transpiration
Answer: B. Anaerobic respiration
1.4 Which of the following is a renewable source of energy?
A. Coal B. Oil
C. Wind D. Natural gas
Answer: C. Wind
1.5 Energy stored in an object because of its position is called:
A. kinetic energy B. potential energy
C. sound energy D. light energy
Answer: B. potential energy
1.6 An object possesses kinetic energy when it is:
A. moving B. stationary
C. cooling D. stored
Answer: A. moving
1.7 A drum is classified as a:
A. string instrument B. percussion instrument
C. wind instrument D. electrical instrument
Answer: B. percussion instrument
1.8 A guitar produces sound mainly when its strings are:
A. compressed B. heated
C. plucked or strummed D. blown
Page 1 of 11
College of Education: Department of Science and Technology Education
⋄
NATURAL SCIENCES AND TECHNOLOGY
FOR THE CLASSROOM 2
Assignment 04 (Portfolio) — 2026
⋄
Module Code: NST1502
Module Name: Natural Sciences and Technology for the
Classroom 2
Assignment No.: 04 (Portfolio)
Due Date: 16 October 2026
Year: 2026
Total Marks: 100
Submitted in partial fulfilment of the requirements for
Natural Sciences and Technology for the Classroom 2 at the University of South Africa.
, UNISA | NST1502 Assignment 04 (Portfolio)
Question 1: Multiple-Choice Questions
1.1 Which molecule is regarded as the main energy currency of a cell?
A. ADP B. ATP
C. DNA D. Glucose
Answer: B. ATP
1.2 In which organelle does photosynthesis take place?
A. Mitochondrion B. Nucleus
C. Chloroplast D. Ribosome
Answer: C. Chloroplast
1.3 Which type of respiration occurs in the absence of oxygen?
A. Aerobic respiration B. Anaerobic respiration
C. Photosynthesis D. Transpiration
Answer: B. Anaerobic respiration
1.4 Which of the following is a renewable source of energy?
A. Coal B. Oil
C. Wind D. Natural gas
Answer: C. Wind
1.5 Energy stored in an object because of its position is called:
A. kinetic energy B. potential energy
C. sound energy D. light energy
Answer: B. potential energy
1.6 An object possesses kinetic energy when it is:
A. moving B. stationary
C. cooling D. stored
Answer: A. moving
1.7 A drum is classified as a:
A. string instrument B. percussion instrument
C. wind instrument D. electrical instrument
Answer: B. percussion instrument
1.8 A guitar produces sound mainly when its strings are:
A. compressed B. heated
C. plucked or strummed D. blown
Page 1 of 11
