Waves Review - 5th

Front

What is refraction?

Back

Refraction is the bending of light waves as they pass from one medium to another, causing objects to appear displaced from their actual position.

Front

Why does a penny appear closer when viewed through lemonade?

Back

The penny appears closer because the light waves are refracted as they enter the lemonade, altering the perceived position of the penny.

Front

What phenomenon causes objects to appear distorted when viewed through water?

Back

Refraction causes objects to appear distorted when viewed through water, as light changes speed and direction when entering a different medium.

Front

What is wavelength in the context of waves?

Back

Wavelength is the distance between successive crests (or troughs) of a wave, which determines the wave's frequency and energy.

Front

How can you identify waves with the same wavelength?

Back

Waves can be identified as having the same wavelength if the distance between their crests (or troughs) is equal.

Front

What determines the color of an object, such as an apple?

Back

The color of an object is determined by the wavelengths of light it reflects; an apple appears red because it reflects red light and absorbs other wavelengths.

Front

What are electromagnetic waves?

Back

Electromagnetic waves are waves that can travel through a vacuum and consist of oscillating electric and magnetic fields, including radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays.

Front

Which type of electromagnetic wave has the highest frequency?

Back

Gamma rays emitted by radioactive materials have the highest frequency among electromagnetic waves.

Front

What is the relationship between frequency and wavelength in waves?

Back

Frequency and wavelength are inversely related; as the frequency of a wave increases, its wavelength decreases, and vice versa.

Front

What is the visible spectrum?

Back

The visible spectrum is the portion of the electromagnetic spectrum that is visible to the human eye, typically ranging from wavelengths of about 400 nm (violet) to 700 nm (red).