Thermal energy , thermometers and solar panelsB

What is the resolution of thermometer B?

• 0.1 °C

• 0.4 °C

• 67.0 °C

• 67.4 °C

Based on Figure 3, which material cools down at a faster rate?

• Material X

• Material Y

• Both materials cool down at the same rate

• Cannot be determined from the graph

What is the temperature of Material Y at 5 minutes?

• 60°C

• 65°C

• 70°C

• 75°C

What is the specific heat capacity of water as mentioned in the document?

• 2100 J/kg °C

• 4200 J/kg °C

• 3200 J/kg °C

• 5000 J/kg °C

According to the document, what should you do if you find an anomalous result in Figure 3?

• Ignore the result

• Draw a ring around the result

• Recalculate the values

• Remove the result from the data set

How many conclusions are suggested to be drawn from Figure 3 in the document?

• One

  1) thermal conductivity of material X is higher

• Two

  1) thermal conductivity of material X is lower

  2)material X is a betterinsulator

• Three

  1) thermal conductivity of material X is lower

  2)material X is a worse insulator

  3) the rate of cooling increased with time

• Four

  1)thermal conductivity of material X is lower

   2)material X is a worse insulator

  3) the rate of cooling decreased with time

  4)water wrapped in material X cooled more slowly

How would using thick insulation affect the rate of cooling of hot water compared with using thin insulation?

• The rate of cooling would be higher.

• The rate of cooling would be lower.

• The rate of cooling would not change.

• The rate of cooling would initially be higher, then lower.

Predict how using thick insulation would affect the temperature of the water after 10 minutes compared with using thin insulation.

• The temperature would be higher.

• The temperature would be lower.

• The temperature would be the same.

• The temperature would fluctuate.

What is the purpose of the equipment setup shown in the diagram?

• To measure the specific latent heat of vaporisation of water.

• To determine the boiling point of water.

• To measure the electrical conductivity of water.

• To observe the solubility of substances in water.

What instrument should be used to measure the mass of water in a beaker?

• Balance

• Joulemeter

• Newtonmeter

• Thermometer