P2 Quiz

What class are you in?

• 11X2A
• 11X2B
• 11Y2A
• 11Y2B
• Other

Define conduction

• The transfer of energy through a material by the vibration of its atoms.
• The circulation of a fluid caused by increasing its thermal energy.
• The amount of energy needed to raise the temperature of a 1kg substance by 1 °C.
• The transfer of energy through waves

Define convection

• The transfer of energy through a material by the vibration of its atoms.
• The circulation of a fluid caused by increasing its thermal energy.
• The amount of energy needed to raise the temperature of a 1kg substance by 1 °C.
• The transfer of energy through waves

Define specific heat capacity

• The transfer of energy through a material by the vibration of its atoms.
• The circulation of a fluid caused by increasing its thermal energy.
• The amount of energy needed to raise the temperature of a 1kg substance by 1 °C.
• The transfer of energy through waves

Which of the following materials is the best conductor?

• Wood
• Steel
• Glass
• Copper

Choose the best definition of specific heat capacity.

• Specific heat capacity is the energy needed to raise the temperature of 1 g of a substance by 1 °C.
• Specific heat capacity is the energy needed to raise the temperature of 1 kg of a substance by 100 °C.
• Specific heat capacity is the power needed to raise the temperature of 1 kg of a substance by 1 °C.
• Specific heat capacity is the energy needed to raise the temperature of 1 kg of a substance by 1 °C.

The specific heat capacity of water is 4200 J per kg per °C. Which of the following will result in the smallest transfer of energy to the thermal store?

• raising the temperature of a kettle of water containing 0.5 kg of water by 100 °C
• raising the temperature of a cup of water containing 200 g of water by 40 °C
• raising the temperature of a cup of water containing 100 g of water by 100 °C
• raising the temperature of a bath tub containing 300 kg of water by 2 °C

You heat three rods with a Bunsen burner. The rods have wax on the end. Choose the correct statement below.

• The rods need to be the same thickness and length, and heated by the same Bunsen burner if you want to compare thermal conductivities.
• The rod which has the wax that melts first is the best insulator.
• The thermal conductivity of the rod which has the wax that melts last has the highest thermal conductivity.
• It takes longest for the wax to melt on the rod with the highest thermal conductivity.

The specific heat capacity of aluminium block is 913 J per kg per °C and its temperature is increased by 10 °C. 4565 J of energy is transferred. Calculate the mass of the aluminium block (hint: you need to convert your answer).

• 0.5 g
• 200 g
• 500 g
• 0.02 g

6.3 kJ of energy is required to increase the temperature of some water from 60 °C to 75 °C. The specific heat capacity of water is 4200 J per kg per °C. What is the mass of the water? (hint: convert units).

• 0.0001 kg
• 0.02 kg
• 0.1 kg
• 1 kg