Chapter 11 Physical Science

The formula for _________ is Force/Area

• Concentration

• Temperature

• Pressure

• Density

The buoyant force acts in the direction opposite to the force of gravity, so it makes an object feel lighter

• True

• False

In a hydraulic system, the force can be multiplied by changing the surface area of the pistons

• True

• False

Archimedes’ principle states that the faster a fluid moves, the less pressure the fluid exerts.

• True

• False

As your elevation increases pressure increases, and as you go into water to a higher depth pressure increases.

• True

• False

The atmosphere presses from every direction in an unbalanced way.

• True

• False

All the forces exerted by the individual particles in a fluid combine to make the pressure exerted by the fluid.

• True

• False

A force exerted on an area on the surface of an object is called ________.

• concentration

• pressure

• free force

• heat index

An upward force is called ________.

• buoyant force

• rising force

• lift

• net force

A material that flows easily is called a __________.

• liquid

• gas

• fluid

• coolant