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Which type of electromagnetic wave is the blue box covering?
Which type of electromagnetic wave is the blue box covering?
Ultrasound and Echoes are examples of…
When sound reaches an object, some of it is _______ back to the source
Sonograms use __________ to produce images
Animals using sound waves is called….
________ is used to measure further distances
Which type of electromagnetic wave is the blue box covering?
Which type of electromagnetic wave is the orange box covering?
Which type of electromagnetic wave is the yellow box covering?
Which type of electromagnetic wave is the yellow box covering?
Which type of electromagnetic wave is the blue box covering?
Which type of electromagnetic wave is the orange box covering?
An object that gives out its own light is called a…..
Light rays always travel in….
Materials that light cannot pass through are called…
Materials that some light can pass through are called…