Heat and Temperature WS 2 MCQ

The diagram below shows a thermometer. What is the reading on the thermometer?

• 38.0 ºC

• 38.5 ºC

• 39.0 ºC

• 39.5 ºC

2. An apparatus consisting of a metal ball, ring and chain is shown below. The metal ball cannot go through the ring.

Which part of the apparatus must be heated to allow the metal ball to go through the ring?

• ring

• chain

• handle

• metal ball

3. A piece of metal bar at 80 ºC and a piece of ice cube were put into beakers A and B containing water at 30 ºC at the same time as shown below. Which one of the following correctly shows the change in the temperature of water  in beakers A and B after sometime?

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4. Steven placed an egg of similar size in identical saucepans with an equal amount of water at the same temperature. Identical lids were used to cover the saucepans. After a while, Steven found out that one egg cooked more quickly than the other though the same amount of heat was provided to boil the water.

Which one of the following provides the correct explanation for the egg which cooked first?

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Hassan filled four bottles with an equal amount of cold water at 10 ^oC. He then placed each bottle at a different spot in the school for the same period of time. He measured and recorded the temperature changes of the water in each bottle placed at different spots in the school: A, B, C and D. Which one of the following identifies the school canteen and open field correctly?

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6. Minah put a test tube of water with a temperature of 60 °C in a beaker of crushed ice in the living room as shown below. Which one of the following did Minah identify correctly?

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7. Kate placed some water in a beaker at room temperature over a bunsen burner. After 10 minutes, the water started to boil. She left the water boiling in the beaker for 10 minutes. She removed the beaker immediately and left it in the freezer for another 20 minutes. At the end of the experiment, she noticed that the water is still in liquid state.

Which one of the following graphs correctly shows the results of Kate’s experiment?

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8. The diagram below shows a hot metal spoon in a beaker of tap water.

9. Which of the following is/ are most likely to happen?

• B and D only

• A and C only

• A, B and D only

• B, C and D only

9. The diagram below shows a square metal frame with four identical blobs of wax at P, Q, R and S. Marcus placed a lit candle at one of the points, A, B, C or D. Next, he recorded the time taken for each blob of wax to melt and drop off in the table below.

10.          

               At which point on the metal frame did Marcus place the lit candle?

• A

• B

• C

• D

10. Ali conducted an experiment using 4 rods of the same length, each made of a different material. He wanted to find out which rod is the best conductor and poorest conductor of heat.  He attached 4 identical thumbtacks using the same amount of wax to one end of each rod. Each rod was heated at its other end for 2 minutes.

Which of the following identifies the best conductor and poorest conductor of heat correctly? 

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