Summary OCR A-Level Physics - Thermal Physics

•
=?:&:&

• = New Equation




T
OCR
HYSICS
A → A-Level physics

Content

→ 21 Temperature, the basics

> 22 Solids, Liquids, and gasses ••

→ 43 Internal Energy

→ L4 Brownian Motion

→ LS Specific Heat Capacity •

→ 26 Specific Latent Heat

→ L7 The amount of substance.
→ 28 Kinetic theory + Pressure of a gas..
→ 29
Investigating gasses + gas Laws ◦ • ◦




> 210 The ideal gas equation
> 211 The Boltzmann Constant ..



Practical Content

→ PAG 11.2 Determining the Specific heat Capacity → Lesson 5

, 21 → Temperature
71848
Cela, '948
Kelvin vs
NOT ZERO

Kelvin = shows energy Internal Energy at minimum

→ Cannot have negative energy > No motion of molecules

↳ Therefore lowest energy ☐ absolute Zero

Zero Ek of Molecules

Celsius = shows temperature




Temperature in °C + 273.5 = Temperature in Kelvin



Standard Temperature + Pressure

Some questions will ask to complete a calculation

" assuming standard temperature and pressure"

◦(

This means 273 K and 1 atmosphere (101,000 Nm-2)



Thermal Equilibrium
15°C
1 "Water water



mum Time mm
15%4

10°C
rock Over time water temperature will adjust to a

constant temperature, this won't be exactly

down the middle assuming varying Volume, mass,

density etc