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III. Your friend is interested in what you were doing in the lab yesterday. Describe to him how you were experimenting with a multimeter. Activity

I. Find out what the people in the pictures are going to do. These are possible questions that you can ask.

Where is Max?

What is he doing at the moment?

What is he going to do next?

When is he going to finish the work?

Max is at the practical class.

The engineer is in the lab.

to work with a multimeter

to prepare for the experiment

to measure the voltage

to study the behaviour of the current

to connect the leads

to describe the results in the graphic form

to watch the indications on the scale

to carry out some tests

II. Your boyfriend/girlfriend wanted to see you yesterday but he/she couldn't find you. Explain to your friend what you were busy with. Some phrases are already given to you.

A: Well, my dear, can you tell me what you were doing yesterday evening?

B: Well, I was… .

A: Were you alone in the lab, I wonder?

B: Er, no. Actually my … .

A: Your …?! In what way was he/she helping you, if it's not a secret?

B: Well, … .

A: Really? And can you tell me what you will be doing tomorrow at this time?

B: Well, let me think for a moment. I'll be … .

A: I see. But dear, … .

Useful expressions:

to prepare for the experiment / to carry out the experiment

to measure the value of the current / to control voltage in the system

to check the indications of a multimeter / to write a report

III. Do the crossword.

Down:

2. a unit of electromotive force, equal to ampere / ohm; 3. a unit of work and energy, equal to newton / metre; 4. a unit of electric current, equal to coulomb / second; 5. a unit of power, equal to joule / second

3

2

4

5

1

6

Across:

1. a unit of electric charge, equal to ampere / second; 6. a SI unit of pressure equal to newton / square metre.

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