Science Lesson 1

A temporary disturbance that transfer energy from one place to another

• Energy

• Wave

• Light

• Shake

A wave that needs a medium to propagate

• Mechanical Wave

• Waves

• Electromagnetic Waves

• Seismic Waves

Waves that are created as a result of vibrations between an electric field and a magnetic field

• Mechanical Waves

• Surface Waves

• Waves

• Electromagnetic Waves

Which is not a property of EM Waves

• They can travel through a Vacuum or with a presence of medium

• They are transverse waves

• They exhibit reflection, refraction, diffraction, and interference

• They travel with a constant velocity (speed of light, c=3 x 10^7)

It is the height of wave and is usually measured in meters

• Frequency

• Amplitude

• Wavelength

• Crest and Trough

The distance between two consecutive crest or trough and usually measured in meters

• Wavelength

• Frequency

• Amplitude

• Energy

Define the statement if it is True Or False “Wavelength and Frequency are Inversely proportional”

• True

• False

• Maybe

• I don’t know

The number of waves passing a point in a certain time is called…..

• Wavelength

• Frequency

• Longitude

• Latitude

To get the wavelength, we need to

• Divide the speed of light to it’s frequency

• Multiply it’s frequency and the speed of light

• Subtract the speed of light to it’s frequency

• Divide it’s frequency to the speed of light

What is the Frequency of electromagnetic radiation having a wavelength of 2.1x10^-7m?

• 28.23x10^15 Hz

• 14.29x10^15 Hz

• 13.28x10^15 Hz

• 14.30x10^15 Hz