Unit 3 | ES II | Energy Bar Diagrams

Front

What does the ICE inside the circle represent in an energy bar diagram?

Back

The ICE represents the system.

Front

In the scenario where ice sits on a metal block and begins to melt, what is the direction of energy flow?

Back

Energy is leaving the system.

Front

What happens to the temperature of ice as it melts on a metal block?

Back

The temperature of the ice remains constant during the melting process until all the ice has melted.

Front

What is the true statement about the thermal energy transfer between the metal block and the ice?

Back

The metal is transferring thermal energy to the ice.

Front

What does a Temperature vs. Time graph for melting ice look like?

Back

The graph shows a horizontal line during the melting phase, indicating constant temperature.

Front

What is the principle of energy conservation in the context of melting ice?

Back

Energy cannot be created or destroyed; it is transferred from the metal block to the ice.

Front

What is thermal energy?

Back

Thermal energy is the total kinetic energy of particles in a substance, related to temperature.

Front

What is the significance of the melting point in the context of ice melting?

Back

The melting point is the temperature at which ice changes from solid to liquid.

Front

How does the specific heat capacity of a substance affect its temperature change?

Back

A substance with a high specific heat capacity requires more energy to change its temperature compared to a substance with a low specific heat capacity.

Front

What is the role of a heat source in the melting of ice?

Back

A heat source provides the thermal energy needed to increase the temperature of the ice to its melting point.