WATTEL AND MORONEY THERMAL ENERGY

What is thermal energy?

• Thermal energy is the total kinetic energy of the molecules in a substance.

• Thermal energy is the energy stored in the bonds of molecules.

• Thermal energy is the energy associated with the position of an object.

• Thermal energy is the energy released during a chemical reaction.

What happens to the energy of molecules in solid ground when the temperature increases due to hot lava?

• The energy of the molecules in the ground decreases.

• The energy of the molecules in the ground remains the same.

• The energy of the molecules in the ground increases.

• The energy of the molecules in the ground becomes negative.

What is the relationship between temperature and kinetic energy?

• As temperature increases, the kinetic energy of molecules also increases.

• Temperature has no effect on the kinetic energy of molecules.

• As temperature decreases, the kinetic energy of molecules increases.

• Kinetic energy is independent of temperature.

How does the temperature of the top wooden cube compare to the bottom cube before they touch?

• The top cube is hotter than the bottom cube.

• The bottom cube is hotter than the top cube.

• Both cubes are at the same temperature.

• The top cube is cooler than the bottom cube.

What is the difference between a conductor and an insulator?

• A conductor allows heat to flow easily, while an insulator resists heat flow.

• Both conductors and insulators allow heat to flow easily.

• Insulators are better at conducting electricity than conductors.

• Conductors are materials that do not allow heat to flow.

What is the term for the object that provides and transfers energy to another object?

• Source

• Receiver

• Conductor

• Transformer

What is thermal equilibrium?

• A state where two objects in contact reach the same temperature.

• A condition where heat is continuously transferred between two objects.

• A situation where one object is hotter than the other.

• A phase where objects are isolated from each other.

What happens to the temperature of the top cube when it touches the bottom cube?

• The cooler top cube will gain kinetic energy until both cubes reach the same temperature.

• The top cube will lose all its heat to the bottom cube immediately.

• The temperature of the top cube will decrease while the bottom cube remains unchanged.

• Both cubes will instantly reach absolute zero.

What is the effect of adding heat to a substance?

• It decreases the temperature of the substance.

• It increases its temperature and can change its state.

• It has no effect on the substance.

• It only changes the color of the substance.

What is convection?

• The transfer of thermal energy through the movement of fluids (liquids and gases).

• The process of heat transfer through direct contact between materials.

• The movement of air caused by temperature differences in the atmosphere.

• The transfer of energy through electromagnetic waves.