Lesson: Specific Heat Capacity Physics • 9th Grade
In this lesson, we will learn how to use the formula E = mcΔθ to calculate the amount of energy needed to increase the temperature of a material or object by a given amount.
J of energy is needed to heat 1 kg of water by , but only 140 J is needed to heat 1 kg of mercury by . Which material has the higher specific heat capacity?
A block of steel and a block of asphalt concrete are left in direct sunlight. Assuming that both materials start at and both absorb energy from sunlight equally well, determine which material will reach a temperature of first. Use a value of for the specific heat capacity of steel and use a value of for the specific heat capacity of asphalt.
The graph shows the change in the internal energy against the change in the temperature for three 0.1 kg blocks of metal. The orange line represents a block of tungsten, the green line represents a block of iron, and the blue line represents a block of nickel.
Which of the 3 metals has the highest specific heat capacity?
Which of the 3 metals has the lowest specific heat capacity?
If all 3 metal blocks start at and 1,200 J of heat is transferred to each block, which blocks will be hotter than ?