THE UNITED REPUBLIC OF TANZANIA NATIONAL EXAMINATIONS COUNCIL OF TANZANIA

FORM TWO NATIONAL ASSESSMENT

031 PHYSICS

Time: 2:30 Hours Year: 2025

Instructions

1. This paper consists of sections A, B and C with a total of ten (10) questions.
2. Answer all the questions.
3. All answers must be written in the spaces provided.
4. All writing must be in blue or black ink, except drawings which must be in pencil.
5. Communication devices and any unauthorized materials are not allowed in the assessment room.
6. Write your Assessment Number at the top right corner of every page.
7. Where necessary the following constants may be used:

(i) Acceleration due to gravity, g = 10 m/s².

(ii) π = 3.14.

SECTION A (15 Marks)

Answer all questions in this section.

1. For each of the items (i) – (x), choose the correct answer among the given alternatives and write its letter in the box provided. (10 marks)

(i) Why is it important to study Physics in real life situations?

1. It is useful for career development
2. It is used to clarify the existence of historical sites
3. It explains physical properties of matter
4. It is applied in the manufacturing and designing of the electronic devices
5. It helps in experimental discoveries

1. 1, 2, 3 and 4
2. 2, 3, 4 and 5
3. 1, 3, 4 and 5
4. 1, 2, 4 and 5

(ii) Figure 1 is a warning symbol used in the laboratory. What does the symbol represent?

Figure 1

1. The substance is corrosive
2. The substance catches fire easily
3. The substance oxidizes the air and speeds up burning
4. The substance produces radiations

(iii) Which one is a renewable energy whose source is heat from the earth's interior?

1. Wind energy
2. Solar energy
3. Geothermal energy
4. Water energy

(iv) Imagine two groups of equal number of people are pulling a rope by their bare hands, each group is trying to overcome the opponent's force. What kind of force does each group exert on the rope?

1. Tension force
2. Normal force
3. Frictional force
4. Stretching force

(v) What does a clinical thermometer measure?

1. Ice point of a solid
2. Steam point of a liquid
3. Temperature of a human body
4. Room temperature

(vi) Why is hot soup tastier than cold soup?

1. It has higher surface tension
2. It has lower surface tension
3. It has higher capillary action
4. It has lower capillary action

(vii) Which set represents ferromagnetic materials?

1. Alluminium, cobalt and nickel
2. Chromium, cobalt and steel
3. Steel, nickel and aluminum
4. Cobalt, nickel and steel

(viii) A student was given a plane mirror and observed that its reflecting surface was so smooth that an image of the object that emits the light was very clear. Which type of reflection was a result of such observation?

1. Diffuse reflection
2. Reflection of light
3. Regular reflection
4. Selective absorption

(ix) After coming late to school, a student ran into the classroom and closed the door to hide from the teacher. What type of force did the student use to close the door?

1. Normal force
2. Turning force
3. Compressional force
4. Stretching force

(x) If you want to detect the presence of electric charge in an object, which electrical device would you use?

1. Electrophorus
2. Galvanometer
3. Voltmeter
4. Electroscope

2. Match each of the physical quantities in List A with its corresponding units in List B by writing a letter of the correct answer below an item number in the table provided. (5 marks)