Physical Science Review

Front

What is convection?

Back

Convection is the transfer of heat through the movement of fluids (liquids or gases). It occurs when warmer areas of a liquid or gas rise and cooler areas sink, creating a circulation pattern.

Front

What is wavelength in a wave?

Back

Wavelength is the distance between two consecutive points of the same phase in a wave, such as from crest to crest or trough to trough.

Front

What is a compound or complex machine?

Back

A compound or complex machine is a machine that consists of two or more simple machines working together to perform a task.

Front

What does the Law of Conservation of Energy state?

Back

The Law of Conservation of Energy states that energy cannot be created or destroyed, only transformed from one form to another.

Front

What is the compound formula for potassium ions (K+) and sulfide ions (S-2)?

Back

The compound formula is K2S, which is potassium sulfide.

Front

What is conduction?

Back

Conduction is the transfer of heat through direct contact between materials, where heat moves from the hotter object to the cooler one.

Front

What is radiation?

Back

Radiation is the transfer of energy through electromagnetic waves, such as light or heat, without the need for a medium.

Front

What is thermal energy?

Back

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

Front

What is an example of a simple machine?

Back

Examples of simple machines include levers, pulleys, inclined planes, wedges, screws, and wheels and axles.

Front

What is the difference between speed and velocity?

Back

Speed is a scalar quantity that refers to how fast an object is moving, while velocity is a vector quantity that includes both speed and direction.