Name me!

substances used to reduce friction

empty space

force divided by area

instrument for measuring air pressure

push or pull

force opposing motion

maximum velocity for a falling object

force of attraction between all objects

When you walk across the floor, there is ______ between your shoes and the floor.

As water flows faster through pipes, the pressure on the pipes from the water is decreased. This is an example of _________.

When skydivers jump from an airplane, they will reach _____ before landing.

Earth's force of ______ pulls objects in the direction of Earth's center.

A hydraulic lift uses force from ______.

A submarine rising to the surface of the water from deep in the ocean is going from _______.

As an airplane lands, it lowers the flaps under the wings in order to ______.

What effect does altitude have on air pressure?

force that slows the airplane

force the opposes gravity

force provided by the airplane's engine

Bernoulli's principle helps to explain what force acting on the airplane