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QuizMultiple Choice

Introduction to Forces — Quiz

Question 1 • Physical Science

Which force best represents cap f sub g ?

Answer
A
A weight lifter is pushing a barbell upward with a force of 90 cap n .
B
A box on a rough table has difficulty sliding past 25 cap n of force.
C
The amount of upward force of a table on a box is 25 cap n .
D
The weight of a barbell acting on a weight lifter is 80 cap n .

Explanation

The symbol F_g represents the gravitational force on an object, also called its weight. Choice D describes the weight of the barbell acting on the weight lifter, with a force of 80 N. The other choices describe an applied force, friction, or the table’s upward normal force.

AI-written and checked against the verified answer.

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