Lift

Whose Principle is used to describe why flight is possible?

• Newton

• Wright Brothers

• Bernoulli

According to Bernoulli's Principle, when the upper air speed is high, air pressure is ________

• High

• Low

• Not enough information

• None of the above

A wing is angled so the _________ pressure air under the wing generates lift up.

• High

• Low

• Not enough information

• None of the above

Due to Bernoulli's principle, the pressure is ____ above an airplane's wing than below it.

• Lower

• Higher

According to Bernoulli's principle, by curving the blades, the wind is split so _______ speed wind travels above the blade and _________ speed wind travels below the blade. This causes more pressure ________ the blade generating _______.

• high; low; under; lift

• high; low; above; lift

• low; high; under; lift

• low; high; above; lift

Which statement about Bernoulli's Principle is the most accurate?

• There must be a cause (external net force) for any change in velocity to occur

• Air moving from above and below a curve, always want to meet at an end point

• Air will always move from an area of high pressure to low pressure

• For a ideal fluid the sum of pressure, acceleration and speed must not change

Tags

NGSS.MS-ESS2-5

which TWO forces are used by airplanes to stay in the sky?

• lift

• thrust

• gravity

• drag

Which force opposes weight?

• Lift

• Drag

• Thrust

• Mass

What is the primary scientific principle that explains how airplanes achieve lift?

• Newton's Third Law

• Bernoulli's Principle

• Archimedes' Principle

• Pascal's Law

Which of the following factors does NOT affect the lift generated by an airplane wing?

• Wing shape

• Air density

• Color of the wing

• Angle of attack