5.14P practical: investigate the Use an electrical heater specific heat capacity of materials inserted into drilled metal including water and some solids block or insulated beaker of and obtain a temperature time water. Specific heat capacity graph to show the constant can be found directly using temperature during a change of energy transferred in a state. given time for different materials. Alternatively, collect temperature data over time to produce temperature-time graph, using gradient to find specific heat capacity. Demonstration: Mix water of two different temperatures and masses, predicting what final temperature would be. Executive function Critical thinking 41 Section 5: Solids, Students will be assessed on their Activity: Edexcel International GCSE Adaptability Problem solving liquids and gases ability to: Physics: 170–171, 176 and Read the text on pages Interpretation 178 d) Ideal gas molecules 170–171 regarding particles Decision making in the three states of matter 5.15 explain how molecules in a gas Executive function and answer the questions have a random motion and that they Video clip: on pages 176 and 178. exert a force and hence a pressure (a) on the walls of the container Demonstration: Edexcel International GCSE 5.16 understand why there is an Observe Brownian motion Physics: 173–175, 176 and absolute zero of temperature which using a microscope and 178 is 273°C glass cell lamp. – Questions in Edexcel International Activity: GCSE Physics Revision Guide:
5.14P practical: investigate the specific heat capacity of materials including water and some solids and obtain a temperature time graph to show the constant temperature during a change of state. Use an electrical heater inserted into drilled metal block or insulated beaker of water. Specific heat capacity can be found directly using energy transferred in a given time for different materials. Alternatively, collect temperature data over time to produce temperature-time graph, using gradient to find specific heat capacity. Demonstration: Mix water of two different temperatures and masses, predicting what final temperature would be. 41 Section 5: Solids, liquids and gases d) Ideal gas molecules Students will be assessed on their ability to: 5.15 explain how molecules in a gas have a random motion and that they exert a force and hence a pressure on the walls of the container 5.16 understand why there is an absolute zero of temperature which is – 273°C Activity: Read the text on pages 170–171 regarding particles in the three states of matter and answer the questions on pages 176 and 178. Demonstration: Observe Brownian motion using a microscope and glass cell lamp. Activity: Edexcel International GCSE Physics: 170–171, 176 and 178 Video clip: (a) Edexcel International GCSE Physics: 173–175, 176 and 178 Questions in Edexcel International GCSE Physics Revision Guide: Executive function Adaptability Critical thinking Problem solving Interpretation Decision making Executive function