Daily Test Iii

REMIDIAL TEST.3 Subject : IPA- FISIKA Topic : Expantion Class/Semester : VII/II 1. A window glass has length expansion coefficient of 0,000009/0C, the area

expansion coefficient of the window glass is…. a. 0,00003/0C c. 0,000018/0C 0 b. 0,00009/ C d. 0,000006/0C 2. The length increase of metal which is heated depends on the following factors, except….. a. The density of metal c. initial metal length b. Temperatures increase d. The kind of metal 3. Musschenbroek is device that can be used to show….. a. The expantion of various metals are different b. The expantion of various metals are equal c. The expantion of various gas are equal d. The expansion of various liquid are different 4. If bimetallic plate is heated, it will…… a. Stay straight and become longer b. Bend to the direction of metal the expansion coefficient of which is the smallest c. Bend to the direction of metal the expansion coefficient of which is the largest d. Bend to the left 5. A bar of iron has length of 3 meters at temperature of 300C. If its expansion coefficient is 0,000011/0C, the length of the iron at temperature of 450C is…. a. 3,495 m c, 3,00495 m b. 3,0495 m d. 3,000495 m 6. Device which is not use bimetal is…… a. Thermostat c. thermos b. Light switch d. car indicator 7. A container contains kerosene of 2 liters at temperature of 00C. The volume of kerosene temperature of 500C if its volume expansion coefficient 9,55 x 10-3m3 is…….. a. 2,955 liter c. 2,00955 liter b. 2,0955 liter d. 2,000955 liter 8. the reason of train rail connection is given gap is in order to…. a. Decrease friction with the train b. When iron expands, its rail does not bend c. When iron expands, the rail is not escaped from its wood base d. When it is passed by train, its rail does not bend 9. The length expansion coefficient of solid depends on…. a. Initial bar length c. temperature change b. The kind of solid d. length increase 10. The following are the method to overcome problems caused by expansion,except….. a. making gaps at the connection of train rail b. making bimetallic plates at automatic switch c. making gaps at the connection of the bridge d. making the size of window bigger than its glass 11. At temperature of 500C the length of brass is 1,000 cm. If the length expansion coefficient of Brass is 0,000019/0C,at temperature of 750C its length increase of…..

a. 0,475 cm b. 0,0475 cm

c. 0,000475 cm d. 4,75 cm.

12. If the length expansion coefficient of iron is 0.000011/0C, the volume

expansion coefficient of iron is…. a. 0,000033/0C c. 0,000011/0C b. 0,000022/0C d. 0,000006/0C 13. Steel bar its length is 3 m at temperature of 100C. after its temperature reaches 500C, the length of steel bar becomes….(α=0.000011/0C) a. 3,00132 m c. 3,00168 m b. 3,0126 m d. 3,00176 m 14. The length of steel bar at temperature of 200C is 50 cm. if the length of that steel bar becomes 50.024 cm, ( α=0.000012/0C) the temperature increase is…. a. 700C c. 500C b. 600C d. 400C 15. The volume of a body at temperature of 250C is 100 m3, if the volume expansion coefficient of the body is 0.000012/0C, the volume of the body at temperature of 1000C is…. a. 100,9 cm3 c. 100,19 cm3 3 b. 100,09 cm d. 100,29 cm3