6th NGSS Benchmark: Physical Science

Front

Foil is a(n) _____________ material.

Back

Opaque: A material that does not allow light to pass through.

Front

In space, sound travels and light does not. (True/False)

Back

False: Sound cannot travel in space because it requires a medium (like air) to travel through, while light can travel through the vacuum of space.

Front

What is the name of letter A in a wave diagram?

Back

Crest: The highest point of a wave.

Front

What is the name of letter C in a wave diagram?

Back

Amplitude: The maximum distance a wave varies from its rest position.

Front

Light travels in waves. (True/False)

Back

True: Light is a form of electromagnetic radiation that travels in waves.

Front

What is the definition of wavelength?

Back

Wavelength: The distance between two consecutive crests or troughs in a wave.

Front

What is the definition of frequency?

Back

Frequency: The number of waves that pass a point in one second, measured in Hertz (Hz).

Front

What is the relationship between wavelength and frequency?

Back

Inverse relationship: As wavelength increases, frequency decreases, and vice versa.

Front

What is refraction?

Back

Refraction: The bending of light as it passes from one medium to another.

Front

What is reflection?

Back

Reflection: The bouncing back of light when it hits a surface.