Q2 H Test - E Transformations & Heat Transfer

Front

What is the transformation of electrical energy into mechanical energy?

Back

This transformation occurs in devices like electric motors, where electrical energy is converted into mechanical motion.

Front

In heat transfer, heat energy moves from an object with a __________ temperature to an object with a __________ temperature.

Back

Higher, lower

Front

What happens when a cold pack is applied to a warm body?

Back

The cold pack absorbs heat from the body, causing it to get warmer while the body cools down.

Front

Which of the following is NOT a natural resource?

Back

Plastic is a synthetic material and not a natural resource.

Front

What is radiation in the context of heat transfer?

Back

Radiation is the transfer of heat through electromagnetic waves, such as sunlight warming the surface of a rock.

Front

Define conduction in heat transfer.

Back

Conduction is the process of heat transfer through direct contact between materials.

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases) caused by differences in temperature.

Front

Give an example of a natural resource.

Back

Examples include water, coal, oil, and natural gas.

Front

What is the role of thermal energy in heat transfer?

Back

Thermal energy is the energy that comes from the temperature of matter; it flows from warmer objects to cooler ones.

Front

Explain the concept of energy transformation.

Back

Energy transformation is the process of changing energy from one form to another, such as from electrical to mechanical energy.