Question

practice it!
select the statement(s) that show the force of gravity working on an object.
the moon revolving around the earth
a rubber band being stretched around a cup
a book bag being dropped on the floor
a ball rolling down a hill
a fans blades moving in a circle

Explanation:

• The moon revolving around the Earth: Gravity provides the centripetal force for this orbital motion.
• A book bag being dropped on the floor: Gravity causes the book bag to accelerate downward.
• A ball rolling down a hill: Gravity is the force that makes the ball move down the slope.
• A rubber band being stretched around a cup: This involves elastic force, not gravity.
• A fan's blades moving in a circle: This is due to the motor's force (mechanical force) and rotational motion, not gravity.

Answer:

• the moon revolving around the Earth
• a book bag being dropped on the floor
• a ball rolling down a hill