1. 8th- Chapter 11 Review Game

2. Which type of substances does Pascal’s principle deal with?
A. solids
B. fluids
C. powders
D. metals
BBBB

3. Water pressure increases as
A. depth increases
B. gravity decreases
C. force decreases
D. acceleration increases
AAAA

4. Air pressure decreases as
A. velocity increases
B. elevation increases
C. acceleration decreases
D. gravity increases
BBBB

5. Given that the air pressure outside your body is so great, why aren’t you crushed?
A. Human skin is extremely strong
B. Earth’s gravity cancels out the air pressure
C. Pressure inside your body balances the air pressure outside your body.
D. Inertia changes the pressure before it comes into contact with you.
CCCCCC

6. Air pressure exerted equally on an object from different directions is
A. balanced pressure
B. gravitational pressure
C. fluid pressure
D. constant pressure
AAA

7. A unit of pressure is called a
A. bernoulli
B. pascal
C. pound
D. meter
BBB

8. Snowshoes enable a person to walk on deep snow because the snowshoes
A. decrease the person’s weight on the snow
B. increase the area over which the person’s weight is distributed.
C. increase the pressure on the snow
D. increase the buoyancy of the person
BBBB

9. One application of Pascal’s principle is
A. a hydraulic car lift.
B. the flight of an airplane
C. a speedboat’s bottom slapping against the waves.
D. the buoyancy shown by ducks and other waterfowl.
AAA

10. What scientific rule describes why water squirts from a plastic bottle when it is squeezed?
A. Bernoulli’s principle
B. Archimedes’ principle
C. Pascal’s principle
D. Newton’s first law of motion
CCC

11. What does a hydraulic system do?
A. decrease pressure
B. increase velocity
C. multiply force
D. reduce inertia
CCC

12. Which of the following is true of the buoyant force?
A. It acts in the downward direction
B. It acts with the force of gravity
C. It acts in the upward direction
D. It makes an object feel heavier
CCCC

13. What effect does a buoyant force have on a a submerged object?
A. It causes the object to sink in a fluid.
B. It causes a net force acting upward on the object.
C. It cases the object to float in a fluid.
D. It causes a net force acting downward on the object.
BBB

14. If an object floats, the volume of displaced water is equal to the volume of
A. the entire object
B. the portion of the object that is above water.
C. The portion of the object that is submerged.
D. exactly half of the object.
CCCC

15. What scientific rule states that the buoyant force on an object is equal to the weight of the fluid displaced by the object?
A. Archimedes’ principle
B. Pascal’s principle
C. Bernoulli’s principle
D. Newton’s third law of motion
AAAA

16. When water fills a submarine’s floatation tanks, the overall density of the submarine
A. decrease
B. stays the same
C. increases
D. reduces the buoynat force.
CCC

17. Pressure can be measured in units of
A. newtons
B. newtons per square meter
C. newtons per centimeter
D. newtons per cubic centimeter
BBB

18. Which of these substances is the LEAST dense?
A. wood
B. copper
C. mercury
D. rubber
AAA

19. An object that is more dense than the fluid in which it is immersed will
A. sink
B. rise
C. neither rise nor sink
D. sink at first, then rise slowly
AAA

20. The mass per unit volume of a substance is its
A. density
B. buoyancy
C. weight
D. fluid pressure
AAA

21. Bernoulli’s principle helps to explain
A. hydraulic brakes
B. buoyancy
C. momentum
D. flight
DDD

22. Smoke rises up a chimney partly because of
A. Archimedes’ principle
B. Pascal’s principle
C. Bernoulli’s principle
D. Newton’s third law of motion
CCC

23. A ship stays afloat as long as the buoyant force is
A. less than the ship’s weight
B. equal to the ship’s weight
C. less than the ship’s speed
D. greater than the ship’s speed
BBB

24. Pascal’s principle states that when force is applied to a confined fluid, the change in pressure is transmitted
A. only to the are where the pressure is applied
B. equally to all parts of the fluid
C. to any weakness in the fluid’s container
D. in the direction of the buoyant force
BBB

25. A substance whose shape can easily change is a
A. solid
B. powder
C. fluid
D. metal
CCC

26. A material that can easily flow is called a
A. fluid
B. solid
C. buoyant force
D. hydraulic material
AAA

27. What scientific rule states that the pressure exerted by a moving stream of fluid is less than the pressure of the surrounding fluid?
A. Archimedes’ principle
B. Pascal’s principle
C. Bernoulli’s principle
D. Newton’s third law of motion
CCC

28. The pressure in the deepest parts of the ocean is roughly how many times the usual air pressure you experience?
A. 10
B. 100
C. 1,000
D. 1,000,000
CCCC

29. Which of these multiplies a force by transmitting it to a large surface area?
A. a hydraulic system
B. a buoyant foce
C. a balanced pressure
D. a force pump
AAA

30. The braking system on a car is an example of
A. a hydraulic system
B. buoyancy
C. Bernoulli’s principle
D. Newton’s third law of motion
AAA

31. A barometer is used to measure pressure
A. in the atmosphere
B. under water
C. in hydraulic systems
D. under a snowshoe
AAA

32. True or False
The pressure you exert on the floor decreases when you stand on your toes because the area on which you exert a force decreases.
FALSE

33. True or False
Water pressure is due to the weight of the water above a particular point.
TRUE

34. True or False
As an airplane wing moves, air moves faster above the wing than below it.
TRUE

35. True or False
Wind blowing across the top of a chimney helps to draw air up the chimney. This is an example of Bernoulli’s principle.
TRUE

36. True or False
As a ship is unloaded, it rises higher in the water because the density of the ship and its cargo increases.
FALSE

37. True or False
Bernoulli’s principle states that the buoyant force acting on a submerged object is equal to the weight of the fluid the object displaces.
FALSE

38. True or False
More force is required to lift an object in water than on land because of the buoyant force of the water.
FALSE

39. True or False
Hydraulic systems use two pistons with different surface areas to lift heavy objects.
TRUE

40. True or False
In a stationary fluid, the buoyant force is exerted equally in all directions.
FALSE

41. True or False
The air pressure at an altitude of 3 km is less than the air pressure at 1 km.
TRUE

42. Completion
According to Bernoulli’s principle, the pressure in a moving stream of fluid is __________ than the pressure of the surrounding fluid.
LOWER

43. Completion
When you squeeze on a bottle with a closed top, the change in pressure is transmitted __________ to all parts of the fluid.
EQUALLY

44. Completion
The pressure resulting from a force of 50 N exerted over an area of 5 m2 is _____ Pa. 10

45. Completion
When you squeeze one end of an inflated balloon, the other end bulges out. This behavior is an example of _______ principle.
PASCAL’S

46. Completion
Pressure _________ as the area over which a force is distributed increases.
DECREASES