8th Grade Physics Heat Study Guide PDF
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Uploaded by CalmCosine9329
Gwinnett County Public Schools
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Summary
This document contains a study guide for 8th-grade physics, focusing on heat transfer and related concepts. It includes key concepts, sample questions, and a graph example. The material is aligned with the study of specific heat capacity and temperature increases.
Full Transcript
#### **Key Concepts to Know:** 1. - - 1. 2. 3. 4. - 5. 6. 7. 8. 2. - - - 3. - - 9. 10. 11. #### **Sample Questions:** **Q1: How much energy is needed to raise the temperature of 0.20 kg of cooking oil by 50°C, if the specific heat capacity of this oil is 180...
#### **Key Concepts to Know:** 1. - - 1. 2. 3. 4. - 5. 6. 7. 8. 2. - - - 3. - - 9. 10. 11. #### **Sample Questions:** **Q1: How much energy is needed to raise the temperature of 0.20 kg of cooking oil by 50°C, if the specific heat capacity of this oil is 1800 J/(kg°C)?** - - - - - **Q2: If 500 J of heat is added to 100 g of water, what is the increase in temperature? (Specific heat capacity of water is 4186 J/(kg°C))** - - - - - **Q3: A 2 kg block of metal has a specific heat capacity of 900 J/(kg°C). How much heat is required to raise its temperature by 10°C?** - - - - - #### **Study Graph Example:** To better understand how heat energy affects temperature, you can create a **Temperature vs. Heat Energy** graph. - - The graph should show a **linear relationship** between the amount of heat energy added and the increase in temperature, assuming the mass and specific heat capacity are constant. **Example of Data** (for a sample substance): **Heat Energy (J)** **Temperature Increase (°C)** --------------------- ------------------------------- 0 0 100 2 200 4 300 6 400 8 500 10 Plot these points on a graph, and you\'ll see a straight line that shows a direct relationship between heat energy and temperature change. #### **Study Tips for Your Exam:** 1. 2. 3. 4.
