Specific Heat Capacity iGCSE Physics

What is specific heat capacity?

• The power needed to raise the temperature of 1 kg of a substance by 1^oC.

• The energy needed to raise the temperature of 1 kg of a substance by 1^oC.

• The temperature increase of 1 kg of a substance when it is heated for 1 minute.

• The mass of a substance whose temperature will increase by 1^oC when heated for 1 minute.

What are the units for energy?

• Joules (J)

• Watts (W)

• Kilograms (kg)

• Seconds (s)

What are the units for mass?

• Joules (J)

• Watts (W)

• Kilograms (kg)

• Seconds (s)

What are the units for temperature?

• Joules (J)

• Watts (W)

• Kilograms (kg)

• Degree Celsius (^oC)

What are the units for specific heat capacity?

• Joules per kilogram degree Celsius (J/kg^oC)

• Joules per kilogram degree Celsius (Jkg^oC)

• Joules per kilogram (J/kg)

• Joules per degree Celsius (J/^oC)

How do we say Δ in science and maths?

• Alpha

• Beta

• Gamma

• Delta

What does Δ represent?

• The increase in

• The decrease in

• The change in

• All of the other answers (including this one)

The specific heat capacity of a substance is 1000 J/kg^oC. How much energy is required to raise 1 kg of it by 1^oC?

• 10 J

• 100 J

• 1000 J

• 10,000 J

Tags

NGSS.HS-PS3-1

Water has specific heat capacity of 4180 J/kg^oC and Lead has specific heat capacity 128 J/kg^oC. Assume 1 kg of water and 1 kg of Lead are at 50^oC. Which material would take longer to cool down to room temperature?

• Water

• Lead

• Both would cool down at same rate

• Impossible to tell

Tags

NGSS.HS-PS3-4

What is the name of the variable that tells you how much heat energy is required to change the temperature of 1kg

of substance by 1^oC?

• Specific Latent Heat Capacity

• Specific Heat Capacity

• Capacity of Material to withstand heat