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lesson pretestMultiple Choice

Pretest

Question 1 • Physics

Which best illustrates the electromagnetic force in action?

Answer
A
Image with description An illustration of a person kicking a football.
B
Image with description An illustration of a neutron splitting into beta-particle and a proton.
C
Image with description A picture of a tree the fall with leaves falling from it.
D
Image with description A picture of a flashlight laying on a surface turned on and illuminating a point a distance in front of the flashlight.

Explanation

Light is electromagnetic radiation, so a flashlight shining on a point illustrates the electromagnetic force in action. A falling tree mainly illustrates gravity, while beta decay is associated with the weak nuclear force.

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