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Electricity and Magnetism Unit test

Alternative current

Fill in the blanks with appropriate words:

• _______________________  radiant energy (mostly visible light and infrared radiation) produced at the Sun’s outer surface and radiated out into space.
• Electricity is produced naturally—_______________________________—but not in a form that we can use
• _______________________ and ________________________ are large continuous sources of thermal energy.
• __________________________________a source of energy that has been widely used for many years.
• __________________________ is one of the most controversial of all energy sources.
• Earth’s temperature depends on how much energy is absorbed by the atmosphere, and on how much energy radiates into space. This is known as __________________________________.
• Gases such as water vapour, carbon dioxide, methane, and nitrous oxides that trap energy in Earth’s atmosphere are known as _________________________.
• ____________________ _______________sources include wind, waves, solar energy, geothermal energy, and biofuel.
• Heating caused by the passage of radiant energy through the windows of a building is known as _____________ _______________ ________________.
• ________________________ a liquid fuel, such as ethanol, produced from plant or animal material.

song to fill in with vocabulary related to weather and nature

electric circuit 

Разминка: Найдите лишнее слово

Инструкция: В каждой строке найдите слово, которое не связано с остальными.

Find the word that doesn’t fit in each row.

1. invention, system, fuzzy, experiment, protest
2. patent, plow, potato, furrow, transmit
3. transmission, media, electricity, toward, broadcast
4. pixel, fuzzy, decade, nuclear fusion, perfect
5. simultaneous, scientist, image, reorganization, commercial

Задание 1: Выбери правильное время

Инструкция: Заполните пропуски, используя правильную форму глагола в скобках (Past Simple или Past Continuous).

Fill in the blanks using the correct tense form (Past Simple or Past Continuous).

1. He __________ (work) in the field when he __________ (think of) the idea.
2. While they __________ (test) the device, they __________ (discover) a problem.
3. The inventor __________ (file) a patent after he __________ (complete) his design.
4. When the press __________ (arrive), the scientist __________ (show) his experiment.
5. They __________ (develop) the first transmission while they __________ (face) financial problems.

Задание 2: Расставь предложения по порядку

Инструкция: Расставьте предложения в правильном порядке, чтобы получилась логическая история.

Put the sentences in the correct order to create a logical story.

• The team experimented with different models.
• He presented the successful transmission to the press.
• While working on the farm, he had an idea about transmitting light.
• He received support from investors to test his design.
• In 1927, he filed a patent for his invention.

Задание 3: Найдите правильное слово

Инструкция: Вставьте подходящее слово из списка в пропуски.

Insert the appropriate word from the list into the blanks.

Words: fuzzy, transmit, toward, experiment, decade, media, electricity, system

1. Early televisions used a __________ to display moving pictures.
2. Scientists worked __________ improving the quality of transmission.
3. The device could __________ images and sound across long distances.
4. Over a __________, television became a household necessity.
5. Modern __________ play a key role in global communication.

Задание 4: Сравнение времён

Инструкция: Прочитайте предложения. Определите, какое время используется (Past Simple или Past Continuous), и объясните, почему оно выбрано.

Read the sentences. Identify which tense is used (Past Simple or Past Continuous) and explain why it is chosen.

1. While he was testing the system, he found a critical issue.
   • Tense 1: ___________________________
   • Tense 2: ___________________________
2. They invented electronic TV in 1927.
   • Tense: ___________________________
3. When the financial problems started, they were developing new models.
   • Tense 1: ___________________________
   • Tense 2: ___________________________

Задание 5: Составь историю

Инструкция: Напишите 5–7 предложений, используя Past Simple и Past Continuous, чтобы создать историю на основе текста. Используйте как минимум 3 слова из списка.

Write a 5–7 sentence story using Past Simple and Past Continuous. Use at least 3 words from the list.

Words: fuzzy, invention, transmit, protest, toward, decade, experiment

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Unit C: Heat and Temperature review

• Explain expansion and contraction in terms of heat

Things expand when heated and contract when cooled

• In Canada what do we measure degrees in?

Celsius

• Caloric theory was proven to be untrue because… (read textbook)

The mass of a heated spoon did not change

• Heat energy is measured in ___________

joules

• Heat energy flows from ___________________  to ____________________

Hot objects to cold objects

• What heating technology reappeared over time?

Central heating

• What are examples of non-sustainable resources?

Oil, coal, natural gas

• The transfer of heat energy between substances that are in contact with each other is called…

conduction

• When a metal spoon is put into a bowl of hot soup, heat is transferred from what to what?

From the soup to the spoon

• In what substances could a convection current form? (solid, liquid or gas)

Liquid and gas

• What substances absorb heat the fastest, a black shirt or white shirt?

A black shirt

• The transfer of energy by infrared rays is called…

radiation

• The energy of movement is called…

Kinetic energy

• The method of heat transfer when liquid or gas particles move from one area to another is called…

Convection  

• According to the Particle Model of Matter (PMOM), heating a substance does what to the particles?

Increases the kinetic energy of the particles

• The measure of the average Kinetic energy of the particles in a substance is called…

Temperature 

• The total Kinetic energy of all the particles in a substance is called…

Thermal energy

• When a liquid changes to a solid it is called… 

freezing

• What is the relative particles movement of each state of matter from fastest to slowest movement of particles?

Gas, liquid, solid

• During conduction, which way does heat transfer?

From areas of greater kinetic energy to areas of lower kinetic  energy

• When cooking chicken in the oven, why should the reflective side of the aluminum foil be toward the food?

The reflective side will reflect the heat toward the chicken causing it to cook faster

• Which state(s) of matter has a definite volume? (can take a shape)

Liquid and solid

• Materials that do not allow easy transfer of heat are called…

insulators

• The four natural sources of thermal energy are…

Fires, geothermal, sun, decay

• The name given to energy produced by the sun is…

Solar energy

• Heating systems are controlled by…

Thermostats 

• Every insulator is given a number showing its insulating ability, this is known as its…

R-value

• Heating systems that provide heat for a larger area from a single source is known as…

Central heating

• Many thermostats contain a strip which is made up of two different metals; this is called a…

Bimetallic strip

• Insulation is used to…

Prevent heat transfer from the warm object to the cold object

• One source of energy is not limited, does not create pollution, nor does it carry radiation risks. This source is… 

The sun

• Making effective energy use choices begins with…

Separating societal needs from societal wants

• What is a non-renewable resource?

It can not be replaced

• An example of a renewable energy resource is…

Wind, water, solar

• A major disadvantage of using wind energy is that…

It can only be used in windy areas

• Which energy sources produce extremely hazardous waste material?

nuclear

• An advantage of using hydroelectric energy is that…

It does not create air pollution

• To improve their energy efficiency, many large companies that produce electricity now use a process called…

Cogeneration

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2nd semester midterm exam

Match electrical units -g6