You stand on a scale to measure your weight. The reaction to the force the Earth exerts on you is
A) the force the scale exerts on you.
B) the force the Earth exerts on the scale.
C) the force you exert on the scale.
D) the force the scale exerts on the Earth.
E) the force you exert on the Earth.

Question

Quizplus · Accepted Answer

According to Newton's third law of motion, for every action, there is an equal and opposite reaction. When the Earth exerts a force on you (your weight), you exert an equal and opposite force on the Earth, which is the reaction force.

You Stand on a Scale to Measure Your Weight