1. Read The Following Statement! 1. Solids Will Expand When

1. Read the following statement! 1. Solids will expand when they are heated. 2. Solids will contract when they are heated. 3. Solid will expand when they are cooled. 4. Solid will contract when they are cooled. 5. The volume of solids will bigger when they are heated. 6. The volume of solids will smaller when they are heated. Which the statements above are correct? A. 1, 4, and 5C. 2, 3, and 5 B. 1, 4, and 6D. 2, 3, and 6 2. The following tools work based on expansion, except . . . . A. bimetal C. thermometer B. thermostat D. balloon 3. If a metal is heated, it causes the metal to expand to any directions. It occurs because. . . . A. the atoms and molecules of the metal become bigger. B. the atoms and molecules of the metal vibrate faster than usual. C. amount of the atoms and molecules of the metal decrease. D. the metal is a solid. 4. Look at the figure 2 below!

Figure 2. Based on an experiment by using Musschenbroek set above, shows that the linear expansion of an object is influenced by . . . . A. the kinds of solid, the shape of an objects, the change of temperature. B. the kinds of solid, the shape of an object, the length of an object. C. the kinds of solid, the size of an object, the change of temperature. D. the kinds of solid, the length of an object, the change of temperature. 5. Figure 3 shows a metal bar is made of steel with the length 0.25 meters on 27ºC, is heated. ℓ Δℓ

Figure 3.

If it is heated until 67ºC, how long is its expansion? (αSteel = 0.000011/ºC). A. 10 m C. 0.00011 m B. 6.75 m D. 0.000011 m 6. Figure 4 below shows electric wires being connected loosely between the poles.

electric wires pole

What is the main purpose of connecting the wires loosely? A. To allow the wires to be stronger B. To allow the wires to contract without snapping during a cold day Figure C. To allow the wires to 4expand easily on a hot day D. To allow the wires to last longer 7. What is the main function of the gaps between the railway tracks? A. Give space for the rails to expand during the hot days. B. Give space for the rails to curve down. C. Give space for the structureof the rails to be strong. D. Give space for the rails to bend. 8. Which the following statements are true about acid? A. Has sour taste, electrolyte solution, a corrosive substance. B. Has bitter taste, electrolyte solution, can be reacted by metal. C. Has salty taste, formed from acid and base reaction. D. Has sour taste. 9. Raksa memiliki kalor uap 272.000 J/Kg yang massanya 500 gram. Maka banyaknya kalor yang dperlukan untuk menguap adalah ....... a. 13.600 joule c. 1.360.000 joule b. 136.000 joule d. 136.000.000 joule 10. Pada siang hari di pantai, pasir terasa panas sementara air relatif dingin. Peristiwa ini disebabkan perbedaan .....antara air dan pasir a. Massa jenis b. Kalor jenis c. Kedalaman d. Konduktivitas termal 11. Jika suhu suatu benda bermassa 20 g meningkat 5oc ketika 40 kalori kalor diberikan padanya, maka kalor jenis benda adalah ..... a. 0,40 kal/goc c. 0,20 kal/goc o b. 0,30 kal/g c d. 0,10 kal/goc

A

B

12. The state of B should be ….. C a. solid b. liquid

c. gas

d. particle

13. The state of C should be ….. a. solid b. liquid

c. gas

d. particle

14. The process when solid turns directly to gas is called …. a. sublimation b. deposition c. melting d. evaporation 15. Sebuah bejana termos mengandung teh panas di dalamnya. Jika termos tersebut di kocok secara cepat, maka suhunya akan ..... a. Meningkat b. Berkurang c. Tetap d. Bisa meningkat, tetap, atau berkurang ESAI 1. Pada suhu 200C sekeping Emas luasnya 100cm2, koefisien muai panjangnya 0,000011/0C, hitung luas Emas setelah dipanaskan yang mencapai suhu 800C? 2. Jelaskan definisi dari: 1. Anomali air 2. koefisien muai panjang 3. keeping bimetal 3. sepotong besi pada suhu 120C panjangnya 12cm, dipanaskan hingga suhunya 520C dan panjangnya menjadi 12,06cm. hitunglah koefisien muai panjang baja tersebut? 4. banyak kalor yang harus diberikan pada 0,5 kg es supaya suhunya naik dari -100C menjadi 400C adalah........(kalor jenis es=2100J/Kg 0C, kalor lebur es = 336 000j/kg) 5. 200 gram timah hitam pada suhu 1100C dimasukkan kedalam sebuah kalori meter yang mengandung 300gram air pada 180C. jika kalor jenis timah hitam 140 j/kg0C dan kalor jenis air 4200 J