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Is this statement true or false Air can cause friction?
true
Is it true or false that the greater the surface area of an object the greater the air resistance?
true
What statement about airplane and rocket is true?
Only one requires air molecules to generate lift.
True or false Projectiles always have a pointed shape?
False, a projectile is simply something that flies through the air irrespective of its shape. A football is a projectile. footballs are pointed though. Think: NERF bullets.
What are the examples of fluid friction?
Examples of fluid friction are fish swimming through water, an airplane flying through the air and a motorboat skidding over water. Although fluid friction refers to friction through water, it can also apply to air.
Is this statement true or false Air can cause friction?
true
The invention of an air brake provided railroad passengers increased safety and comfort and allowed for longer and faster trains true or false?
That is a true statement.
It's a high-pressure zone with rising air. true or false?
It's a high-pressure zone with rising air. true or false
How True or false cool air is heavier than warm air?
true
Is this statement true or false when Mass and air resistance affect the gravitational attraction between objects?
Mass certainly affects the gravitational attraction between objects; air resistance doesn't.
Frogs can breathe air through their skins true or false?
false
Is this statement true or false The temperature at which water vapor begins to condense on solid objects is called the dew point.?
True. The dew point is the temperature at which air reaches saturation and water vapor in the air begins to condense into liquid water on surfaces.
True or false the higher the altitude the lower the air pressure?
true?
Does oxygen enter the blood in the air sacs true or false?
true
When you climb a mountain the air pressure increase true or false?
False. As you climb a mountain, the air pressure decreases because there is less air pushing down from above. This is why many climbers experience difficulty breathing at high altitudes due to the lower air pressure.
Is it true or false that to float in air a blimp could be filled with helium?
False
Is it true or false the force that drives air into the lungs come from air pressure?
No atmospheric pressure
