When a suction cup sticks to a wall it is
A)pulled to the wall by the vacuum.
B)pushed to the wall by the atmosphere.
C)both of these
D)neither of these

Question

Quizplus · Accepted Answer

The suction cup is pushed to the wall by the atmospheric pressure, which is greater than the pressure inside the suction cup. This creates a vacuum that holds the suction cup in place. So, option B is the correct choice. Option A is incorrect because there is no pulling force involved. Option C is partially correct, as atmospheric pressure is responsible for pushing the suction cup to the wall, but there is no pulling force involved. Option D is incorrect because there is a pushing force involved due to atmospheric pressure.

When a Suction Cup Sticks to a Wall It Is