SAMPLE FLASHCARD

Front

Refraction

Back

The bending of light due to the change in its speed when passing from one medium to another.

Front

EM Waves

Back

Electromagnetic waves that can propagate in a vacuum.

Front

Sunspots

Back

Dark blemishes on the surface of the sun caused by magnetic activity.

Front

Gamma rays

Back

Electromagnetic waves that are more penetrating than X-rays and are used in medical applications.

Front

Celestial sphere

Back

An imaginary spherical surface on which stars appear to be attached when viewed from Earth.

Front

Reflection

Back

The bouncing back of light when it hits a surface.

Front

Transmission

Back

The passing of light through a medium without being absorbed.

Front

Mechanical Waves

Back

Waves that require a medium to travel through, such as sound waves.

Front

Infrared Waves

Back

Electromagnetic waves with wavelengths longer than visible light but shorter than microwaves.

Front

Ultraviolet Waves

Back

Electromagnetic waves with wavelengths shorter than visible light but longer than X-rays.