Science Mastery Pro
Diyaargarowga Imtixaanka Shahaadiga ah ee Form 4
Paper 2: Essential Diagrams
BIOLOGY
1. The Structure of the Heart
Q: Name the valve located between the left atrium and left ventricle.
Answer: Bicuspid (Mitral) Valve.
BIOLOGY
2. The Reflex Arc
Q: What is the role of the Sensory Neuron in this pathway?
Answer: It transmits nerve impulses from the receptors to the Central Nervous System (CNS).
CHEMISTRY
3. Fractional Distillation of Crude Oil
Q: Which fraction is used as fuel for jet engines?
Answer: Kerosene (Paraffin).
PHYSICS
4. Convex Lens Ray Diagram
Q: Where is the image formed when the object is placed at the focus (F)?
Answer: The image is formed at infinity.
PHYSICS
5. The DC Motor
Q: What is the function of the Split-ring Commutator in a DC motor?
Answer: It reverses the direction of the current in the coil every half-turn to keep the motor rotating in one direction.