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2.3 Energy & Temperature

2.3 Energy & Temperature

Assessment

Presentation

Science

7th Grade

Practice Problem

Easy

NGSS
MS-PS1-4, MS-PS3-5, MS-PS3-4

+5

Standards-aligned

Created by

William Katumba

Used 4+ times

FREE Resource

5 Slides • 35 Questions

1

Review questions; Conservation & Transfer of energy

First, answer these review questions from yesterday's lesson.

2

Multiple Choice

Question image

The rock in the picture is pushed over the edge and it begins to fall. Which type of energy conversion is taking place?

1

mechanical to heat

2

sound to mechanical

3

potential to kinetic

4

kinetic to potential

3

Multiple Choice

Question image

A ball is projected into the air. Where is potential energy the greatest?

1
2
3
4

4

Multiple Choice

Question image

Within the alarm clock seen here, energy is transformed. It is time to get up! The alarm clock goes off. What are the energy transformations taking place in your alarm clock?

1

electrical to magnetic to sound

2

electrical to mechanical to sound

3

electrical to mechanical to light

4

chemical to electrical to mechanical

5

Multiple Choice

Question image

Muscles convert chemical energy into

1

light energy.

2

nuclear energy.

3

mechanical energy.

4

electromagnetic energy.

6

Multiple Choice

Energy can be created.
1

True

2

False

7

Multiple Choice

Energy cannot be destroyed.
1

True 

2

False

8

Multiple Choice

When something is dropped, what type of energy transfer takes place?
1

Kinetic -> Potential

2

Gravitational Potential -> Kinetic -> Sound

3

Electrical -> Chemical

4

Heat -> Nuclear

9

Multiple Choice

Energy is the ability _____________.
1

to do work

2

to power things

3

to move objects

4

to turn on a light

10

Multiple Choice

The Law of Conservation of Energy states:
1

Energy can created or destroyed but not transformed from one form to another

2

Energy cannot be created or destroyed, it can only transformed from one form to another

3

Energy can't be created, destroyed or transformed at all times.

11

2.3; Energy & Temperature

Lesson objectives; You'll be able to;

  • State the difference between energy & temperature

  • Describe what happens when you heat up solids, liquids, and gases

  • Explain what is mean by equilibrium

TEXTBOOK REFFERENCE; PAGES 144 - 145

Video; https://youtu.be/vuBPgTMKUc0

12

Poll

On a scale of 1-5, how much prior knowledge do you have about today's lesson objectives?

1; I know nothing about this

2; I've heard about it in the past, don't remember what it's all about

3. I have a vague idea. I can get some multiple choice questions correct

4; I can clearly explain / answer one of the lesson objectives

5; I can already explain all 3 lesson objectices

13

Prior knowledge questions

Let's see what you already know about this topic..

14

Multiple Choice

Question image

Reading a thermometer;

Select the temperature in °C

1

40°C

2

100°C

3

96°C

4

36°C

15

Multiple Choice

Question image

Reading a thermometer;

Look at the thermometer and select the closest temperature in degrees Celsius:

1

15°C

2

70°C

3

20°C

4

65°C

16

Multiple Choice

What tool do we use to measure temperature?
1

Thermometer

2

Ruler

3

Balance

4

Magnifying Glass

17

Multiple Choice

Its ok if you don't know the answer. Take your best guess.

A measure of the average kinetic energy of the individual particles in an object is called:

1

thermal energy

2

conduction

3

convection

4

temperature

18

Multiple Choice

In what units do we measure temperature?

1

In Degrees

2

In Inches

3

In Centimeters

4

In Pounds

19

Fill in the Blanks

Type answer...

20

Fill in the Blanks

Type answer...

21

Multiple Choice

State the unit of temperature

1

Celcius

2

Fahrenheit

3

Thermometer

4

Degrees

22

Multiple Choice

State the unit of energy

1

Joules

2

Temperature

3

Newtons

4

Kelvins

23

Multiple Choice

What is temperature?

1

How hot or cold something is

2

The ability to do work

24

  • Ability to do work

  • Determined by how much is in the energy 'store'

Energy

  • How hot or cold something is

  • Determined by how fast molecules are moving or vibrating

Definition;

Temperature is the average Kinetic energy of the molecules of a substance

Temperature

Temperature & Energy

25

Multiple Choice

True or false; Temperature and energy are the same thing

1

True

2

False

26

Multiple Choice

True or False; Energy is determined by how fast molecules are moving or vibrating

1

True

2

False

27

Multiple Choice

True or False; Temperature is determined by how fast molecules are moving or vibrating

1

True

2

False

28

Multiple Choice

Temperature is a measure of the average _____ energy of the molecules of a substance

1

Potential

2

Mechanical

3

Electomagnetic

4

Kinetic

29

Multiple Choice

A swimming pool and a coffee cup are both heated to 250C. Which of the following are true?

1

They have the same amount of energy because they are both at 250C

2

The swimming pool has more energy because it has more water mass.

3

The coffee cup has more energy because it is smaller.

4

None of these.

30

What happens when you heat things up? (Page 145)

Heating changes the movement of particles;

If you heat a solid, the particles vibrate more. If you heat a liquid or gas, the particles move faster and vibrate more.

The energy that you need to increase the temperature of a material depends on;

  • The mass of the material

  • What the material is made of

  • The temperature rise that you want

31

Fill in the Blanks

Type answer...

32

Multiple Choice

True or false; Heating changes the movement of particles;

1

True

2

False

33

Multiple Choice

The energy that you need to increase the temperature of a material depends on;

1

The mass of the material

2

The natural composition of the material

3

The temperature rise you want

4

All of these

34

Draw

Draw three simple pictures that show the arrangement of particles in solids, liquids, and gases

35

Open Ended

Explain what happens to the particles in an object when it is heated up

36

Multiple Choice

True of false; Page 145

Energy is transferred from a cold object to a hot object

1

True

2

False

37

Multiple Choice

True of false; Page 145

Energy is transferred from a hot object to a cold object

1

True

2

False

38

Multiple Choice

Page 145; When two objects in contact reach the same temperature, they are said to be in ______

1

Equilibrium

2

Balance

3

Equivalence

4

Unity

39

Multiple Choice

Thermal equilibrium is reached when;

1

Both objects have the same mass

2

The temperature difference between two objects in contact is 0

3

Both objects have the same potential energy

4

Both objects are warm

40

Multiple Choice

Question image

During the summer, Gonza takes a glass of milk from the refrigerator and places it on the kitchen counter. Over time, heat energy is transferred to the milk from the air. Which change would most likely occur?

1

The temperature of the milk will increase.

2

The temperature of the milk will decrease.

3

The milk will change from a liquid to a gas.

4

The milk will change from a liquid to a solid.

Review questions; Conservation & Transfer of energy

First, answer these review questions from yesterday's lesson.

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