G5Y6 Heat lesson 1

LQ: What is heat?

什么是热？

Learning outcomes:

1. Define what a heat source is 定义什么是热源
2. Explain how heat and temperature are different
解释热和温度的不同
3. Identify when a material reaches equilibrium识别材料何时达到平衡状态

KEY WORDS
-WHAT DO THESE MEAN?

Thermal

Temperature

Joules

Equilibrium 平衡

热的

温度

焦耳

Cirle the object with the most heat energy?围绕热能最多的物体？

A. candle

B. The Sun

C. The Moon

D. torch

Heat Sources.热源

​Sources of Heat sources give out a lot of heat energy

HOW MANY HEAT SOURCES CAN YOU
NAME?
你能说出多少种热源？

Temperature 热

Temperature is a measurement of the average kinetic energy of particles in an object

Heat 温度

Heat is the flow of energy from a warm object to a cooler object.

Heat energy is to do with the total kinetic energy of the particles of an object.

Temperature 热

温度是物体中粒子平均动能的量度

Heat 温度

热量是能量从温暖的物体流向凉爽的物体。 热能与物体粒子的总动能有关。

HOW DO WE MEASURE TEMPERATURE

我们如何测量温度？

Temperature is measured in Degrees Celsius ˚C
using a thermometer.

Thermometer

HOW DO WE MEASURE HEAT ENERGY?

Energy is measured in Joules ( J )

Multiple Choice

The biggest heat source for our planet is the ______________________.

• Sun
• Moon
• Mars
• Jupiter

Multiple Choice

What tool can be used to measure how hot or cold something is?

• Thermometer
• Meter
• Gauge
• Scale

Multiple Choice

Define heat energy
定义热能

• Heat energy is a form of potential energy stored in objects.
• Heat energy is a form of energy that is transferred between objects due to a temperature difference.

• Heat energy is a form of kinetic energy associated with the movement of particles.
• Heat energy is a form of light energy emitted by objects.

Poll

Define heat energy 定义热能

• is a measurement of the average kinetic energy of particles in an object

• is the flow of energy from a warm object to a cooler object.

TEMPERATURE DESCRIBES HOW MUCH THE PARTICLES MOVE.

Poll

Which image is showing heat energy 定义热能

• is a measurement of the aver

• is the flow of energy

Draw

The red box is hotter than the blue box draw an arrow to show how the transfer of heat energy occurs.

1. Where is the
heat source?

2. What is the
water
temperature?

3. Will the water
get any hotter?

EXPERIMENT实验

1.

Label all the
equipment.

Experiment
Method实验方法
Step 1
Step 2

DRAW AND WRITE DOWN HOW YOU CARRIED OUTTHE EXPERIMENT.画出并写下你是如何进行实验的。

Independent Variable:

Dependent Variable:

Controlled variables

DRAW AND WRITE DOWN HOW YOU CARRIED OUT

THE EXPERIMENT.画出并写下你是如何进行实验的。

• Volume of water
• Height of beaker

from Bunsen burner

• Amount of heat

• Temperature

Open Ended

What happened to the temperature of water.

Word Cloud

What new word did you learn today

Open Ended

Why did the temperature of water increase.

Multiple Choice

State the Independent Variable (IV) in the heating water experiment:

• Time for heating the water

• temperature of the water
• size of the pot
• color of the cup

Multiple Choice

State the dependent Variable (DV) in the heating water experiment.

• Time for heating the water

• temperature of the water
• size of the pot
• color of the cup

Multiple Select

List all the controlled Variables (CV) in the heating water experiment.

• volume of water

• temperature of the water
• Distance of burner from the beaker

• Heating time .

EQUILIBRIUM平衡

Energy out

Energy in

Equilibrium is when A side is equal to the B side.平衡是
指 A 边等于 B 边。

A

B

Multiple Choice

What happens when there is no equilibrium with heat energy?

• Heat will stop flowing between objects
• The objects will merge into one
• The heat will disappear
• Heat will continue to flow from the hotter object to the cooler object until thermal equilibrium is reached.

WHAT HAPPENS IF THIS IS NOT IN EQUILIBRIUM?如果不平衡会发生什么？

Multiple Choice

What is equilibrium in heat energy?

• Balance between heat gained and lost with no net change in temperature.

• Equilibrium is when heat is lost but not gained
• Equilibrium is when there is a constant increase in temperature
• Equilibrium is when heat is gained but not lost

Open Ended

Write down one thing that you have learnt in this lesson.