All of Topic one + Topic 2

Front

The invisible heat that you feel if you are close to a heating element is called?

Back

Infrared rays

Front

A unit used to compare the loudness of different sounds is called?

Back

Decibel

Front

What type of electrical circuit does the diagram illustrate?

Back

Series circuit

Front

The point at which light rays parallel to the optical axis meet, after being reflected (or refracted) by a mirror (or lens) is called?

Back

Focal Point

Front

Light waves, microwaves, and radio waves are this type of energy?

Back

Radiant energy

Front

What is the definition of a series circuit?

Back

A circuit in which the components are connected end-to-end, so that the current flows through each component in turn.

Front

What is the definition of a parallel circuit?

Back

A circuit in which the components are connected across common points or junctions, providing multiple paths for the current.

Front

What is the definition of radiant energy?

Back

Energy that travels by waves or particles, particularly electromagnetic radiation such as light.

Front

What is the definition of a decibel?

Back

A unit of measurement for the intensity of sound, representing a logarithmic scale.

Front

What is the definition of a focal point?

Back

The point where light rays converge after passing through a lens or reflecting off a mirror.