THIRD QUARTERLY TEST SCIENCE-Gr 7

Wavelength is the distance between two consecutive points in a wave train that are ______________.

• A. Amplitude

• B. Crest

• C. Hill

• C. Hill

Two waves having the same period must also have the same ______________.

As a longitudinal wave passes through a medium, the particles of a medium move ____

Bluetooth, wi-fi, and GPS technologies use _______*

What is common among electromagnetic waves ?*

It is the part of the electromagnetic spectrum that is visible to the unaided eye.*

Who was Benjamin Franklin? What was his profession?

______ is known to be as a magnetized iron core ..*

Who was the first investigator who recorded the ability of am amber to attract a near objects ?

As early in 600 BC Thales was known to as one of the seven ___________*