Pre-Assessment on Qtr 2 Mod 1

These are waves that are created as a result of vibrations between an electric field and magnetic field.

• electromagnetic spectrum

• electromagnetic wave

• microwave

• radio wave

Electromagnetic waves are produced by ___________.

• any disturbance

• currents

• vibrating charge

• voltage source

Which two colors of light lie at the beginning and end of the visible spectrum?

• red and violet

• red and yellow

• yellow and violet

• yellow and green

This type of EM wave has a wavelength similar to the size of PBA basketball court (28 meters).

• microwave

• radio wave

• ultraviolet

• visible light

Which of the following electromagnetic waves has the LEAST wavelength range?

• infrared

• ultraviolet

• visible light

• x-ray

What happens to the frequency of electromagnetic wave if its wavelength increases?

• It decreases.

• It doubles.

• It increases as well.

• It remains the same.

Which of the following forms of electromagnetic wave has the WIDEST wavelength range?

• microwave

• radio wave

• ultraviolet

• x-ray

In the visible spectrum, which color has the LONGEST wavelength?

• blue

• green

• red

• violet

Which property spells the difference between infrared and ultraviolet radiation?

• amplitude

• color

• speed in vacuum

• wavelength

Which electromagnetic wave can travel the FARTHEST distances because it has a wavelength range of greater than 1x10^-1 meters?

• gamma ray

• radio wave

• microwave

• x-ray