Question

In which situations is gravitational potential energy present? Check all that apply.

A person walks up a flight of stairs.
A person runs across a room.
Wind blows against a steel table anchored to the ground.
Wind lifts a balloon into the air.
A weightlifter holds a barbell on the ground.
A weightlifter holds a barbell straight overhead.

Answer 1

A person walks up a flight of stairs √
Wind lifts a balloon into the air √
A weightlifter holds a barbell straight overhead √

Gravity is used in most real world examples because if not of gravity everyone would be floating all around ^-^

Hope this helps ;p

Answer 2

Option (1), (4), (6)

Step-by-step explanation:

The energy possessed by the position or configuration of a body is called it's potential energy.

Gravitational potential energy is defined as the energy possessed by the height of object from the ground level.

Here, a person walks up on the flight of stairs has cover some height from the ground level, so it has gravitational energy.

Wind lifts a balloon in air also have gravitational potential energy.

Weightlifter lifts a barbell overhead also cover some height to lift the barbell, so it also have some gravitational potential energy.