1
Q
all electromagnetic radiation is made up of two different fields. Identify the two types of fields and briefly explain how the fields are arranged relative to each other.
A
Electric field and magnetic field and both perpendicular to each other
2
Q
explain one drawback in one benefit of UV radiation
A
Drawback it’s a cancer, causing agent sunburn
Benefit is vitamin D
3
Q
explain one advantage of refracting telescopes
A
Cheap durable and easy to care for
4
Q
explain one disadvantage of refracting telescopes
A
Poor image
5
Q
based on information, identify if the star is moving away from or towards the earth, explain how you were able to make this choice
A
Towards you can see the blue shifting
science 30
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