Energy and Heat Calculations

Front

What causes heat to flow between objects?

Back

Heat is a flow of energy caused by temperature differences.

Front

Energy is transferred as heat between two objects of ___________ temperatures.

Back

differing

Front

What is the term for the energy transferred between the particles of two objects due to temperature difference?

Back

heat

Front

For a skillet used for cooking, do you want a high or low specific heat?

Back

Low, so that it will change temperature quickly.

Front

What is the specific heat (c) of copper?

Back

0.38 J/g °C.

Front

What is the formula to calculate temperature change (∆t) when heat (Q) is added?

Back

∆t = Q / (m * c), where m is mass and c is specific heat.

Front

If 100.0 Joules of heat is added to 20.0 grams of copper, what is the temperature change (∆t)?

Back

13 °C.

Front

What is specific heat?

Back

Specific heat is the amount of heat required to raise the temperature of 1 gram of a substance by 1 °C.

Front

What is the relationship between temperature difference and heat transfer?

Back

Heat transfer occurs from an object at a higher temperature to one at a lower temperature.

Front

What is thermal expansion?

Back

Thermal expansion is the increase in volume of a substance as its temperature increases.