FORM THREE PHYSICS TERMINAL EXAMINATION

FORM THREE PHYSICS TERMINAL EXAMINATION

Time: 2 Hours 30 Minutes

Instructions:

• Answer all questions in Sections A and B.

• Choose any two questions from Section C.

• Write your answers clearly in the answer booklet.

• You may use a calculator where necessary.

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SECTION A (16 MARKS)

Multiple Choice Questions (10 Marks)

Select the best answer for each question and write its letter in your answer booklet.

1. Which of these represents a vector quantity?
   A. Mass
   B. Time
   C. Velocity
   D. Distance

2. What term describes the rate of change of displacement?
   A. Speed
   B. Acceleration
   C. Velocity
   D. Force

3. Which quantity has magnitude but no direction?
   A. Force
   B. Weight
   C. Momentum
   D. Speed

4. The resistance encountered when two surfaces slide against each other is known as:
   A. Tension
   B. Friction
   C. Gravity
   D. Upthrust

5. What type of friction prevents stationary objects from moving?
   A. Dynamic friction
   B. Rolling friction
   C. Static friction
   D. Fluid friction

6. When light strikes a surface, the angle formed between the incident ray and the normal is called:
   A. Angle of reflection
   B. Angle of refraction
   C. Critical angle
   D. Angle of incidence

7. The change in direction of light as it moves between different media is referred to as:
   A. Reflection
   B. Refraction
   C. Diffraction
   D. Interference

8. Which device is specifically designed to enlarge tiny objects for detailed viewing?
   A. Telescope
   B. Microscope
   C. Camera
   D. Projector

9. Heat transfer through a material without the material itself moving is an example of:
   A. Convection
   B. Radiation
   C. Conduction
   D. Evaporation

10. Among the following, which material allows heat to pass through it efficiently?
    A. Wood
    B. Plastic
    C. Copper
    D. Air

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Matching Items (6 Marks)

Connect each term in List A with its correct definition in List B.

List A
i. Vector quantity
ii. Coefficient of friction
iii. Refractive index
iv. Magnification
v. Heat capacity
vi. Convection

List B
A. Ratio of the sine of the angle of incidence to the sine of the angle of refraction
B. A measurement that includes both size and direction
C. Heat transfer through fluid movement
D. Comparison of image size to object size
E. Frictional force relative to normal force
F. Energy needed to raise a substance's temperature by one degree

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SECTION B (54 MARKS)

1. Scalar and Vector Quantities

Explain the fundamental difference between scalar and vector quantities, providing two examples for each type.

2. Laws of Friction

Describe the key principles governing friction between surfaces.

3. Laws of Reflection

Outline the two main laws that describe how light reflects off surfaces.

4. Refractive Index

Define refractive index and discuss its importance in the study of light.

5. Simple Microscope

Explain how a basic microscope functions to magnify small objects.

6. Heat Transfer Methods

Discuss the three primary ways heat energy moves from one place to another.

7. Thermal Expansion in Daily Life

Provide real-world examples where thermal expansion plays a significant role.

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SECTION C (30 MARKS)

Answer any two questions.

8. Practical Uses of Vectors

Explore how vector quantities are applied in fields such as navigation, engineering, and sports.

9. Friction: Impacts and Reduction

Analyze the effects of friction in machinery and everyday life, along with techniques to minimize it.

10. The Human Eye

Describe the structure of the human eye and explain how it processes visual information.