Download Investigation 5 “Energy Transfer” Study Guide

Name: ___________________
Date: ____________________
Investigation 5 “Energy Transfer” Study Guide
The test will be worth 41 points. Please be sure to review the following sheets: Mixing Water,
Energy on the Move Questions, Response Sheet: Energy Transfer, Calculating Heat in Calories
A/B, Heat Transfer, Heat A/B.
Please review the Energy Vocabulary (Calorie, Conduction, Conservation of Energy, Energy
Transfer, Equilibrium, Heat, Kinetic Energy, and Temperature).
Please review the lectures on Heat and Energy Transfer (on the science website); the readings in
our Science Resources Book Energy on the Move and the following multimedia programs:
Energy Transfer by Collision, Mixing Hot and Cold Water, Thermometer, and Energy Flow.
1. Review the Energy Flow multimedia to determine the flow of energy with vial of water
in a container of salt and ice.
a. Where does the energy flow?
b. You will need to be able to describe where energy flows from each part of the
vial/container system.
c. You will need to be able to describe the materials that energy flows through.
2. What happens when you mix hot and cold liquid together? Where does the energy flow?
3. When two particles collide, you will need to know the following:
a. Which one has more kinetic energy?
b. Which one has less kinetic energy?
c. When does energy transfer and what direction does the energy flow?
d. What happens to each particle after they collide?
4. What happens when you put ice into a warm drink?
5. You will need to be able to solve for calories using the same mass of water (refer to our
Heat Transfer lab).
Important Formulas:
Final Temperature: Tfinal = T1 + T2
2
Change of Temperature:
T = Tf(final) – Ti(initial)
Calories: cal = m (mass) x
T (change of Temp)
a. You will need to know the final temperature of the water.
b. You will need to know how much heat energy transferred from the hot water?
c. You will need to know much heat energy transferred to the cold water?