Free Printable Air and Aerodynamics Grade 6 Vocabulary Practice

1.

What is aerodynamic ?

a)

Car speed

b)

The way air moves around things

c)

The car body

2.

What 2 gasses make up 99% of the air we breathe?

a)

Oxygen & Methane

b)

Nitrogen & Methane

c)

Nitrogen & Oxygen

d)

Methane & Krypton

3.

An airfoil is

a)

provides the force of flight called thrust

b)

made of aluminum foil used to wrap wings

c)

a shape designed to provide lift when fluid flows over it (curved on top, flat on bottom).

4.

Air pressure is

a)

the force proving air takes up space

b)

the force exerted on objects by the weight of air particles.

c)

the force proving air acts as a fuid

5.

Atmosphere is

a)

is the air we breathe

b)

the blue sky above the earth

c)

the mass of air that can surround a planet.

6.

Bernoulli’s Principle -

a)

A rule that states that when the speed of a fluid is low the pressure will be low (and vice versa).

b)

A rule that states that when the speed of a fluid is high, the pressure will be low (and vice versa).

c)

A rule that states that when the speed of a fluid is high the air pressure will be high (and vice versa).

7.

Burning -

a)

A chemical reaction that occurs when substances combust to form light and heat.

b)

An instant reaction that occurs when there is no oxygen.

c)

A chemical reaction that occurs when someone turns on the lights.

8.

To squeeze into a smaller space.

a)

Streamlining

b)

Friction

c)

Compression

9.

To take up less space.

a)

Expand

b)

Contract

c)

Freeze

10.

A backward force that acts to slow down an object moving through a fluid (due to friction).

a)

Drag

b)

Thrust

c)

Lift

d)

Gravity (weight)

11.

To take up more space.

a)

Boil

b)

Contract

c)

Expand

12.

Something that flows, and can be poured (i.e. liquids and gases)

a)

River

b)

Fluid

c)

Iceberg

13.

What is process called that causes fruit to brown and rust to form on steel and iron?

a)

Oxygenization

b)

Oxygen

c)

Oxyclean

d)

Oxidation

14.

This force slows a plane down. It is caused by air friction.

a)

Lift

b)

Thrust

c)

Weight

d)

Drag

15.

Another name for air resistance or fluid friction.

a)

Lift

b)

Drag

c)

Thrust

d)

Gravity

16.

A force that is always directed toward the center of the Earth.

a)

Gravity

b)

Thrust

c)

Lift

d)

Drag

17.

Gliders have engines.

a)

True

b)

False

18.

What word best describes this shape?

a)

airplane

b)

airfoil

c)

airway

d)

airon

19.

Hovercraft -

a)

A machine that uses combustion to fly

b)

A machine that flies with an engine

c)

A machine that floats on a cushion of compressed air.

20.

A machine that produces thrust in a vehicle by pushing out hot gases.

a)

Car engine

b)

Hovercraft

c)

Jet engine

21.

Lift -

a)

An upward force that opposes gravity.

b)

An upward force that opposes drag

c)

An upward force that opposes thrust

22.

Mass -

a)

The amount of air pressure in an object

b)

The amount of air in an object

c)

The amount of matter in an object.

23.

Propeller -

a)

Creates lift/drag in an aircraft by spinning quickly.

b)

Creates thrust/drag in an aircraft by spinning quickly.

c)

Creates thrust/lift in an aircraft by spinning quickly.

24.

What is an example of what forward force that can be produced by engines?

a)

Lift

b)

Thrust

c)

Drag

d)

Gravity

25.

These two forces need to overcome their opposite force in order for an aircraft to fly.

a)

Drag & Weight

b)

Thrust & Weight

c)

Lift & Drag

d)

Lift & Thrust

26.

Respiration -

a)

A chemical reaction that occurs when living things photosynthesize. (i.e. breathing)

b)

A chemical reaction that occurs when living things take in carbon dioxide and breathe out oxygen (i.e. breathing)

c)

A chemical reaction that occurs when living things take in oxygen and give out carbon dioxide (i.e. breathing)

27.

A chemical reaction between iron, oxygen, and water.

a)

Rusting

b)

Oxidation

c)

Combustion

28.

Shaping an object so that fluids flow easily around it.

a)

Bernoulli's Principle

b)

Aerodynamics

c)

Streamlining

29.

Anything that can change or be changed in an experiment

a)

Variable

b)

Hypothesis

c)

Procedure

30.

Independent (Manipulated) Variable:

a)

Quantities/items that you want to remain constant or the same, and must observe them as carefully as the dependent variables.

b)

What happens as a result of the experiment.

c)

is the one that is controlled by the scientist. To insure a fair test, a good experiment has only ONE independent variable. As the scientist changes the independent variable, he or she records the data that they collect.

31.

Responding Variable:

a)

What happens as a result of the experiment.

b)

is the one that is controlled by the scientist. To insure a fair test, a good experiment has only ONE independent variable. As the scientist changes the independent variable, he or she records the data that they collect.

c)

Quantities/items that you want to remain constant or the same, and must observe them as carefully as the dependent variables.

32.

Controlled (Constant) Variable:

a)

is the one that is controlled by the scientist. To insure a fair test, a good experiment has only ONE independent variable. As the scientist changes the independent variable, he or she records the data that they collect.

b)

Quantities/items that you want to remain constant or the same, and must observe them as carefully as the dependent variables.

c)

What happens as a result of the experiment.

33.

What force do you need to go up?

a)

Gravity

b)

Thrust

c)

Lift

d)

A bird

34.

In order to fly forward you need more Thrust then _ _ _ _ _ _

a)

Drag

b)

Weight

c)

Lift

d)

Gravity

35.

What are the 4 Forces of Flight?

a)

Drag, Thrust, Gravity, Weight

b)

Drag, Thrust, Food, Lift

c)

Drag, Air, Gravity, Lift

d)

Drag, Thrust, Gravity, Lift

36.

Check all answers that apply to the properties of air:

a)

air exerts pressure

b)

air acts as a fluid

c)

air can be compressed

d)

air takes up space

e)

air has mass

37.

What shape is a wing's airfoil most related to?

a)

a kite

b)

a bird

c)

a jet

d)

a rocket

38.

The four forces that enable flight are:

a)

drag, lift, thrust, gravity

b)

lift, drag, winglet, aileron

c)

thrust, drag, gravity, mass

d)

gravity, lateral, thrust, drag

39.

A scuba tank uses which of the following properties of air?:

a)

Air exerts pressure

b)

Air can be compressed

c)

Air has volume

d)

Air has a mass

40.

True or False. As speed increases, pressure decreases.

a)

True

b)

False

41.

Weight is

a)

the force of thrust opposing drag on an object

b)

the force of mass on an object

c)

the force of drag on an object

d)

the force of gravity on an object

Air and Aerodynamics Grade 6 Vocabulary Practice

Total questions: 41

Worksheet time: 10hrs 15mins

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