Grade 6 Science Test – AIR AND FLIGHT Name:
[pic] Grade 6 Science Unit Test – FLIGHT[pic]
PART A: TRUE or FALSE. Place a T or F in the space provided. (10 marks)
1. _____ Birds can overcome gravity because their bones are hollow.
2. _____ The rudder on a plane controls the plane’s pitch.
3. _____ Drag is the most important force when an airplane is taking off.
4. _____ Propellers push aircrafts forward using the Bernoulli Effect (by creating lift)
5. _____ Cold air is lighter than warm air, so it will rise above warm air.
6. _____ Ailerons help control the roll of an aircraft to the left or right.
7. _____ All 4 forces must be balanced for an aircraft to take off.
8. _____ A “force” is the ability to rise or float in a fluid.
9. _____ Lighter-than-air aircrafts, like Hot Air Balloons, depend on wind for some thrust.
10. _____ Oxygen is not a fluid because it is a gas.
PART B: FILL IN THE BLANK: Use your knowledge of vocabulary from this unit to fill in the blank with the appropriate word(s). (10 marks)
11. The force that enables objects to rise or float in fluid is called ___________________.
12. The design of an airplane’s wing is referred to as an _______________.
13. The flaps on the wings of an airplane are called ___________________.
14. ______________________ is the force exerted by a rocket or jet engine that moves an object forward.
15. The side-to-side movement of the nose of a plane is called __________.
16. Supporting bars or braces (in birds and planes) are called ___________.
17. _______________ is the up-and-down movement of the nose of a plane.
18. The _____________________________ explains that the faster a fluid or gas travels, the lower its pressure. This is how planes are able to achieve lift.
19. The _____________________ is the body of an aircraft that holds passengers or cargo.
20. To ____________________ is to drive or push on object forward.
PART C: SHORT ANSWER: Answer each question using complete sentences
21. Explain how a hot air balloon rises. How does it land?
22. Define the term “fluid” and give 1 example:
23. In the space provided, explain the following 4 things:
a. How do birds achieve lift and thrust?
b. What special thing about birds helps them overcome gravity?
c. What else is unique about this part of a bird’s body?
d. How do birds perform the 3 basic movements that an aircraft makes?
24. What is streamlining? Give one example of a streamlined object or device
25. On the diagram below:
a. Label (with arrows) the 4 forces acting on a plane
b. Tell how each of them acts for or against the plane.
26. In the chart below:
a. List the 3 basic movements of an airplane
b. Tell what each movement causes the airplane to do
c. List the device(s) that control the movement
| | | | |
|Movements | | | |
| | | | |
|What do they cause the plane to | | | |
|do? | | | |
| | | | |
|Device that controls it | | | |
27. In the space provided below
a. Draw a picture of an airfoil
b. Use the diagram to explain how the Bernoulli Effect helps airplanes lift into the air.
28. Think of the example of a deflating balloon. Explain how jet engines propel airplanes forward.
Bonus: Name 2 ways that aircrafts and spacecrafts are different from one another
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Name: ______________
Score:
/45
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