Physics — Study Notes for AP TET Paper II

Overview

Physics forms a core component of the Mathematics and Science section in AP TET Paper II, targeting teachers for classes 6–8. This section tests your understanding of fundamental physical concepts that upper primary students encounter — force, motion, energy, heat, light, sound, electricity and magnetism.

Expect 8–12 questions covering both content knowledge and pedagogical understanding. Questions typically test conceptual clarity rather than complex numerical calculations. You must understand everyday applications of physics principles, as NCF 2005 emphasises connecting science to daily life experiences. Strong command over basic definitions, SI units, simple formulas and cause-effect relationships is essential for scoring well.

The pedagogy aspect expects you to know how to teach these concepts through activities, demonstrations and experiments suitable for young learners.

Key Concepts

• **Force** is a push or pull that changes an object's state of rest or motion. It has both magnitude and direction (vector quantity). SI unit is Newton (N).

• **Friction** is the force that opposes relative motion between surfaces in contact. It can be useful (walking, writing) or harmful (wear and tear). Types: static, sliding and rolling friction.

• **Motion** is change in position of an object with time. Types include rectilinear (straight line), circular, oscillatory and random motion.

• **Work** is done when force causes displacement. Work = Force × Displacement × cos θ. SI unit is Joule (J). No work is done if displacement is zero or force is perpendicular to displacement.

• **Energy** is the capacity to do work. Forms include kinetic, potential, heat, light, sound, electrical and chemical energy. Energy can be transformed but not created or destroyed (Law of Conservation of Energy).

• **Heat** is energy transferred due to temperature difference. It flows from hotter to colder body. Modes of transfer: conduction, convection and radiation.

• **Light** travels in straight lines (rectilinear propagation). Reflection occurs when light bounces off a surface. Refraction is bending of light when it passes from one medium to another.

• **Sound** is produced by vibrations and needs a material medium to travel. It cannot travel through vacuum. Speed of sound: solid > liquid > gas.

• **Electric current** is flow of electric charges through a conductor. SI unit is Ampere (A). A complete circuit is needed for current to flow.

• **Magnets** have two poles — north and south. Like poles repel, unlike poles attract. Earth behaves like a giant magnet.

Formulas / Key Facts

| Concept | Formula / Fact | |---------|----------------| | Speed | Speed = Distance ÷ Time (m/s) | | Velocity | Displacement ÷ Time (vector, has direction) | | Acceleration | Change in velocity ÷ Time (m/s²) | | Work | W = F × d (when force and displacement are in same direction) | | Kinetic Energy | KE = ½ × m × v² | | Potential Energy | PE = m × g × h | | Power | Power = Work ÷ Time; SI unit is Watt (W) | | Ohm's Law | V = I × R (Voltage = Current × Resistance) | | Speed of light | 3 × 10⁸ m/s in vacuum | | Speed of sound in air | Approximately 340 m/s at room temperature | | Angle of incidence | Equals angle of reflection (Law of Reflection) | | Boiling point of water | 100°C at normal atmospheric pressure |