August 2018 2 44 Report
Zad1.
W wannie znajduje się 21kg wody o temperaturze 10 stopni C. Ile wrzątku (100stopni C) należałoby do niej dolać, aby mieszanina osiągnęła temperaturę 37 stopni C? Straty ciepła pomijamy.
Wynik ma wyjść 9kg

zad2.
W pojemniku z wodą o temperaturze 0 stopni C pływa bryła lodu o masie 50dag i temperaturze 0 stopni C. Ile co najmniej ciepła należy do zawartości pojemnika, aby lód się stopił? Ciepło topnienia lodu wynosi 334kJ/kg, a strat ciepła nie uwzględniamy.
Wynik ma wyjść: 167kJ

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1. He wasn't___ to enter the competition.a so old c much olderb as old d old enough2 If I___ to the disco last Saturday, I wouldn't have met Liz.a didn't go c haven't goneb hadn't gone d wasn't going3 I wish I___ a musical instrument.a could play c can playb will play d would play4A ___B: She's quite slim and tall.a What's she like? c What does she look like?b What does she like? d How is she?5 I___ to my best friend's wedding next week,a go b will go c 'm going d would go6 Would you___ picking me up from the airport?a mind b like c want d agree7 You've been resting all day. You ___be tired.a mustn't c can'tb may not d don't have to8 A special prize ___to the best player at yesterday's ceremony.a was awarded c has awardedb awarded d has been awarde9 Could you turn ___the radio a little bit? It's too louda off b up c off d down10 If I ___these documents, my boss will be really angry.a would lose b will lose c lost d lose11 My grandmother ___ill for two weeks. She's still not very well.a has been b is c was d had been12 Your new mobile is by far ___of all the phones I saw on the website.a as cheap c cheapb cheaper d the cheapest13 I'm pretty sure we will ___their team easily.a win b beat c score d support14 Ron prefers jazz___ classical music.a over b to c than d from15 I'm exhausted. I___ over 500 kilometres today.a drive c 've drivenb 'm driving d 've been driving16 Caroline___ married last year.a got b was c has d is17 The plane was ___by two hours due to bad weather conditions.a delayed b cancelled c broken d crowded18 He asked me what ___for a living.a did I do b I did c I'm doing d am I doing19 We should all stop___ the environment.a breaking b wasting c losing d destroying20 She hasn't seen your brother ___Christmas.a before b since c last d for21 The chicken is a little too___- you've added too much pepper.a tender b spicy c crispy d sour22 Chris is passionate___ playing football.a about b for c of d with23 I ___go to parties until I was 16.a wasn't allowed to c mustn'tb didn't have to d didn't let24 I'm really ___.You've taken my blouse without asking again!a annoyed b jealous c frightened d embarrassed25 Laura told me that she wanted to wash the car___.a itself b herself c myself d himself26 I checked___ drawer of my desk but I couldn't find my passport.a a lot of b plenty of c every d all27 Guess what? We ___the last match and now we're the champions!a won c have wonb win d were winning28 Clare is my___. She's the daughter of my mother's new husband.a niece b cousin c aunt d stepsister29 I ___football three times a week when I was at school.a was playing c used to playb had played d have played30 How do you ___on with your new boss?a go b keep c get d look
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