Science Ch.7 Vocabulary

Front

What is the force that pushes an aircraft up?

Back

Lift is the force that pushes an aircraft upward, allowing it to rise into the air.

Front

What is the upward force exerted by a fluid?

Back

Buoyant force is the upward force exerted by a fluid on an object submerged in it.

Front

What is the amount of force exerted on a certain area?

Back

Pressure is the amount of force applied to a specific area.

Front

What is a system that uses fluids to increase or transfer forces?

Back

A hydraulic system is a mechanism that uses pressurized fluids to transmit force.

Front

What is the force exerted by air?

Back

Air pressure is the force that air exerts on surfaces.

Front

What principle explains how lift is generated on an aircraft wing?

Back

Bernoulli's Principle states that an increase in the speed of a fluid occurs simultaneously with a decrease in pressure.

Front

What is the force that propels an aircraft forward?

Back

Thrust is the force that moves an aircraft forward, generated by engines.

Front

What is the relationship between pressure and volume in a gas?

Back

According to Boyle's Law, pressure and volume of a gas are inversely related at constant temperature.

Front

What is the term for the weight of an object in a fluid?

Back

The apparent weight of an object in a fluid is less than its actual weight due to buoyancy.

Front

What is the effect of altitude on air pressure?

Back

As altitude increases, air pressure decreases.