gravity and flight

The ______________ states that the force of gravity acts between all objects in the universe that have mass.

• Newton's first law

• Newton's second law

• Newton's third law

• Law of universal gravitation

What are three things all planets have in common?

• they are spherical, they have at least one moon and they have gravity
• Orbit the sun, massive enough that their gravity controls all objects in the area and they are spherical
• they have at least one moon, they are spherical and they were made by accretion
• they are spherical, they orbit the sun and they have living organisms 

Which Letter represents Drag? 

• A
• B
• C
• D

Whose Principle explains how lift occurs?

• Newton

• Descartes

• Bernoulli

• Pascal

The force that causes forward movement of a flying plane is called

• lift.
• thrust.
• weight.
• drag.

This picture best represents

• Gravity

• Thrust

• Drag

• Lift

This is the name of the force that tries to push an aircraft up.

• Thrust

• Gravity

• Drag

• Lift

As distance between two objects increase the pull of gravity

• Increases

• Decreases

• Stays the same

This picture best represents

• Drag

• Gravity

• Lift

• Thrust

• Rolling Friction 
• Static Friction
• Fluid Friction
• Sliding Friction