unit 5-(energy transfer) date: 9/9 learning target: i can explain temperature change, heat and...

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Unit 5-(Energy Transfer) Date: 9/9 Learning Target : I can explain temperature change, heat and energy transfer when different temperatures of water are mixed. Sponge : Your teacher takes a sip of her hot cup of coffee. She gets busy for the next 15 minutes. When she takes her next sip, does it taste the same? Why?

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Page 1: Unit 5-(Energy Transfer) Date: 9/9 Learning Target: I can explain temperature change, heat and energy transfer when different temperatures of water are

Unit 5-(Energy Transfer)

Date: 9/9Learning Target: I can explain temperature change, heat and energy transfer when different temperatures of water are mixed.Sponge: Your teacher takes a sip of her hot cup of coffee. She gets busy for the next 15 minutes. When she takes her next sip, does it taste the same? Why?

Page 2: Unit 5-(Energy Transfer) Date: 9/9 Learning Target: I can explain temperature change, heat and energy transfer when different temperatures of water are

To do…

• Check HW

Page 3: Unit 5-(Energy Transfer) Date: 9/9 Learning Target: I can explain temperature change, heat and energy transfer when different temperatures of water are

Performance Assessment – Thermal Energy

1. When something is pushed into a smaller space, it is being (compressed or expanded).

2. When air particles are compressed, the particle number (increases, decreases, or stays the same)

3. During expansion, the space in between the particles (increases or decreases).

4. During contraction, the space in between the particles (increases or decreases).

5. When the solid sphere was heated, it’s volume (increased or decreased).

Page 4: Unit 5-(Energy Transfer) Date: 9/9 Learning Target: I can explain temperature change, heat and energy transfer when different temperatures of water are

Let’s review what we know about energy and particles…

• The movement of particles is called _________ energy.

• As particles heat up, they move ___________.• As particles cool down, they move __________.• What happens to the volume of particles when

heated? When cooled? How did this happen?

• Energy actually moves from particle to particle! When particles collide, Kinetic energy transfers from the particle with more energy to the particle with less energy!!

Page 5: Unit 5-(Energy Transfer) Date: 9/9 Learning Target: I can explain temperature change, heat and energy transfer when different temperatures of water are

Write in your notebook index:

• Energy Transfer- the movement of energy from one location, to another• Conduction – energy transfer between

particles through direct contact.

Page 6: Unit 5-(Energy Transfer) Date: 9/9 Learning Target: I can explain temperature change, heat and energy transfer when different temperatures of water are

Write in your notebook index:

• Heat- the transfer of energy from matter at a higher temp to a lower temp• Temperature- measure of the KE

of the particles of a substance.

Page 8: Unit 5-(Energy Transfer) Date: 9/9 Learning Target: I can explain temperature change, heat and energy transfer when different temperatures of water are

Investigation 5-Part 1• You are going to do a investigation/lab

using water at different temperatures.• Turn to pg. 45 in your notebook. Read

the question. Make a prediction. Explain your prediction. Be prepared to discuss!

Page 9: Unit 5-(Energy Transfer) Date: 9/9 Learning Target: I can explain temperature change, heat and energy transfer when different temperatures of water are

Page 45 lab directionsMaterials:

50 ml of hot water, 50 ml of cold water, 3rd foam cup, thermometer

Directions: Record the temperature of hot water and cold water. Make a prediction. Mix the water in the 3rd cup. Measure the temperature.

Page 10: Unit 5-(Energy Transfer) Date: 9/9 Learning Target: I can explain temperature change, heat and energy transfer when different temperatures of water are

Notebook, Page 85

Page 11: Unit 5-(Energy Transfer) Date: 9/9 Learning Target: I can explain temperature change, heat and energy transfer when different temperatures of water are

Discussion Questions!!!

• 1) What happened to the hot water when it was mixed with the cold water?

• 2) What happened to the cold water when it was mixed with the hot water?

• 3) What happened to the kinetic energy of the particles in hot water when the hot and cold water mixed?

• 4) What happened to the kinetic energy of the particles in cold water when the hot and cold water mixed?

Page 12: Unit 5-(Energy Transfer) Date: 9/9 Learning Target: I can explain temperature change, heat and energy transfer when different temperatures of water are

Candy questions….

• Make a prediction. If I mix equal amounts of 10 degree and 30 degree water, what will the temperature of the mixture be?

Page 13: Unit 5-(Energy Transfer) Date: 9/9 Learning Target: I can explain temperature change, heat and energy transfer when different temperatures of water are

Candy questions….

• Make a prediction. If I mix equal amounts of 10 degree and 30 degree water, what will the temperature of the mixture be? 20!

• Did heat go from the 30 degree to the 10 degree water or the 10 degree to the 30 degree water?

Page 14: Unit 5-(Energy Transfer) Date: 9/9 Learning Target: I can explain temperature change, heat and energy transfer when different temperatures of water are

Candy questions….

• Make a prediction. If I mix equal amounts of 10 degree and 30 degree water, what will the temperature of the mixture be? 20!

• Did heat go from the 30 degree to the 10 degree water or the 10 degree to the 30 degree water? 30 to 10! Heat goes from hot to cold!

Page 15: Unit 5-(Energy Transfer) Date: 9/9 Learning Target: I can explain temperature change, heat and energy transfer when different temperatures of water are

Candy questions….

• Make a prediction. If I mix equal amounts of 50 degree and 100 degree water, what will the temperature of the mixture be?

Page 16: Unit 5-(Energy Transfer) Date: 9/9 Learning Target: I can explain temperature change, heat and energy transfer when different temperatures of water are

Candy questions….

• Make a prediction. If I mix equal amounts of 50 degree and 100 degree water, what will the temperature of the mixture be? 75!

• Did heat go from the 100 degree to the 50 degree water or the 50 degree to the 100 degree water?

Page 17: Unit 5-(Energy Transfer) Date: 9/9 Learning Target: I can explain temperature change, heat and energy transfer when different temperatures of water are

Candy questions….

• Make a prediction. If I mix equal amounts of 50 degree and 100 degree water, what will the temperature of the mixture be? 75!

• Did heat go from the 100 degree to the 50 degree water or the 50 degree to the 100 degree water? 100 to 50!

Page 18: Unit 5-(Energy Transfer) Date: 9/9 Learning Target: I can explain temperature change, heat and energy transfer when different temperatures of water are

Candy questions….

The room right now is 70 degrees. Which cup of water will exchange the most heat with the room?

Page 19: Unit 5-(Energy Transfer) Date: 9/9 Learning Target: I can explain temperature change, heat and energy transfer when different temperatures of water are

Candy questions….

The room right now is 70 degrees. Which cup of water will exchange the most heat with the room?

Page 20: Unit 5-(Energy Transfer) Date: 9/9 Learning Target: I can explain temperature change, heat and energy transfer when different temperatures of water are

If time….

• Brainpop: Temperature

Page 21: Unit 5-(Energy Transfer) Date: 9/9 Learning Target: I can explain temperature change, heat and energy transfer when different temperatures of water are

Investigation 5-Part 2

Date: 9/10Learning Target: I can explain

energy transfer when particles collide.

Sponge: Is cold ever transferred?

Page 22: Unit 5-(Energy Transfer) Date: 9/9 Learning Target: I can explain temperature change, heat and energy transfer when different temperatures of water are

To do…

Page 23: Unit 5-(Energy Transfer) Date: 9/9 Learning Target: I can explain temperature change, heat and energy transfer when different temperatures of water are

Write in your notebook index:

• Equilibrium- a condition in which a system is experiencing no change

Page 24: Unit 5-(Energy Transfer) Date: 9/9 Learning Target: I can explain temperature change, heat and energy transfer when different temperatures of water are

Refer to yesterday’s lab…

• Equilibrium- a condition in which a system is experiencing no change

• Heat went from the _____ to the ______ water.• ______ is the measure of the KE or heat in

a substance.• When did equilibrium happen?

Page 25: Unit 5-(Energy Transfer) Date: 9/9 Learning Target: I can explain temperature change, heat and energy transfer when different temperatures of water are

Multimedia

• Foss Web–Mixing Hot and Cold Water– Thermometer– Energy Transfer by Collision– Energy Transfer

Page 26: Unit 5-(Energy Transfer) Date: 9/9 Learning Target: I can explain temperature change, heat and energy transfer when different temperatures of water are

Copy in your notebook and discuss.

Energy Transfer• Kinetic energy = heat. (The greater

the kinetic energy, the hotter it is.)• Energy transfers between particles

when they collide. (Conduction)• Energy always transfers from hot to

cold!

Page 27: Unit 5-(Energy Transfer) Date: 9/9 Learning Target: I can explain temperature change, heat and energy transfer when different temperatures of water are

Below your notes, answer these 2 questions with your table. Be prepared to discuss!

1. Describe the differences in average motion of the particles at Point A and Point B 1 minute after I turn the stove on.

2. Describe the average motion of the particles at Point A and B 10 minutes after I turn the stove on.

3. I turn the stove off. Describe the average motion of the particles 10 minutes after I turn it off.

Page 28: Unit 5-(Energy Transfer) Date: 9/9 Learning Target: I can explain temperature change, heat and energy transfer when different temperatures of water are

Quiz Study Guide

• Complete it independently first.• Then we’ll compare answers!• Then YOU NEED TO STUDY TONIGHT!