Vocabulaire pour les questions (à noter avant de commencer puis cocher quand c'est OK) :

• wave : onde

• wavelength : longueur d'onde

• to increase : augmenter

• vacuum : vide

What happens to wavelength as the frequency of a wave increases?

• increase

• stays the same

• decreases

• becomes faster

Tags

NGSS.HS-PS4-1

What electromagnetic wave has the longest wavelengths and lowest frequencies?

• Microwaves

• Ultraviolet Rays

• Infrared Waves

• Radio Waves

Tags

NGSS.HS-PS4-1

What type of electromagnetic wave has the shortest wavelength and the highest frequencie ?

• Gamma Rays

• Ultraviolet Rays

• Radio Waves

• X Rays

The human eye is only capable of seeing which electromagnetic wave?

• Infrared Light

• Ultraviolet Light

• Visible Light

• All of the above

What electromagnetic wave do humans emit as heat energy?

• infrared light

• ultraviolet light

• visible light

• microwaves

Tags

NGSS.HS-PS4-3

Which of the following is correct in order from lowest to highest energy?

• X Rays, Visible Light, Microwave

• Ultraviolet, Visible Light, Gamma-Rays

• Microwave, Visible Light, Gamma Rays

Tags

NGSS.HS-PS4-1

Radio waves, visible light, and x rays are examples of electromagnetic waves that always differ from each other in

• amplitude

• intensity

• temperature

• wavelength

A communications satellite transmits a radio wave at a frequency of 5.0 x 10⁹ Hz. What is the signal’s wavelength? Assume the wave travels in a vacuum.

• (5.0 x 10^9 Hz) x (3.0 x 10^8 m/s)

• (5.0 x 10^9 Hz) / (3.0 x 10^8 m/s)

• (3.0 x 10^8 m/s) / (5.0 x 10^9 Hz)

• (5.0 x 10^9 Hz) + (3.0 x 10^8 m/s)

Tags

NGSS.HS-PS4-1

Which is an example of a radio wave ?

• television

• heat lamp

• vision

• sun light