3rd Quarter CRT Review 1

1
3rd Quarter CRT Review - 1
8.0
8.1
9.0
9.1
10.0
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10
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10
15
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20
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25
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2
ASCOS 8.0 5 points
Question According to Newtons 2nd law, if there
is an increase in force, what will happen to the
acceleration of the object?
3
ASCOS 8.0 10 points
Question According to Newtons first law of
motion, what will a moving object that is not
acted on by an unbalanced force do?
4
ASCOS 8.0 15 points
Question According to Newtons Laws, when the
brakes are suddenly applied to a moving vehicle,
what causes a person to continue to move forward
in his seat?.
5
ASCOS 8.0 20 points
Question According to Newtons third law of
motion, when a force is exerted on an object what
does a second force produce?
6
ASCOS 8.0 25 points
Question If an astronaut uses a jet of nitrogen
to maneuver in space, what law is illustrated as
the nitrogen is expelled?
7
ASCOS 8.1 5 points
Question A student kicks a 0.7 kg ball. She then
kicks a 70 kg rock with the same force. What can
be said about the acceleration of the ball as
compared to the rock?
8
ASCOS 8.1 10 points
Question All objects accelerate toward the Earth
at a rate of 9.8 m/s/s. What is the effect on
velocity for every second that an object falls
downward?
9
ASCOS 8.1 15 points
Question Due to projectile motion, where should
Mr. Smith aim when shooting at a target?
10
ASCOS 8.1 20 points
Question Given the formula (Fma), how much force
is needed to accelerate a 62 kg rider and her 300
kg motor scooter at 6 m/s/s.
11
ASCOS 8.1 25 points
Question Given the formula, (acceleration final
velocity starting velocity divided by time),
what is a planes acceleration from Mobile to
Saraland if the plane passes over Mobile with a
velocity of 8,000 m/s north and then passes over
Saraland at a velocity of 10,000 m/s north, 40s
later?
12
ASCOS 9.0 5 points
Question A construction worker is given four
hammers of different lengths. Which hammer would
have the greatest mechanical advantage?
13
ASCOS 9.0 10 points
Question How would you describe the input force
and distance of a screw?
14
ASCOS 9.0 15 points
Question A student is given a 10 kg rock, four
boards, and a fulcrum to make a lever. Which
board would have the greatest mechanical
advantage if the fulcrum is places in the same
place relative to the load?
15
ASCOS 9.0 20 points
Question A student wants to lift a 20 kg box.
She has four pulleys and a 18 m rope. Which
arrangement would have the greatest mechanical
advantage?
16
ASCOS 9.0 25 points
Question To open a bottle, Mary applied a force
of 90 N to the bottle opener. The bottle opener
applies a force of 225 N to the bottle cap. What
is the mechanical advantage of the bottle opener?
17
ASCOS 9.1 5 points
Question A 546 g fish displaces 420 cm3 of water.
What is the density of the fish? (Dm/v)
18
ASCOS 9.1 10 points
Question How to gases and air flow?
19
ASCOS 9.1 15 points
Question Air is made up of gases, but it can be
called a fluid. Why is an airplane able to fly
within this fluid?
20
ASCOS 9.1 20 points
Question An ice cube is dropped into a glass of
water that is filled to the top. The ice cube
causes some of the water to overflow. What is
true of the weight of the displaced water?
21
ASCOS 9.1 25 points
Question In what direction do gases exert
pressure?
22
ASCOS 10.0 5 points
Question A ball falls from a height of 6 meters
in the absence of air resistance. When does the
ball have the greatest kinetic energy and the
least potential energy?
23
ASCOS 10.0 10 points
Question A roller coaster travels up and down a
large hill and a small hill. At what point on
the hills does a roller coaster have the greatest
kinetic energy?
24
ASCOS 10.0 15 points
Question A student is observing traffic and sees
four vehicles a large truck traveling 60 m/s, a
large truck traveling 30 m/s, a small car
traveling 40 m/s, and a small car traveling 25
m/s. Which vehicle has the MOST kinetic energy?
25
ASCOS 10.0 20 points
Question A vehicle is traveling at 25 Km per
hour. It increases its speed to 60 km per hour.
What happens to its kinetic and potential energy?
26
ASCOS 10.0 25 points
Question By increasing the speed of an object
what happens to its potential energy?
27
ASCOS 8.0 5 points
Question What does Newtons second law of motion
state about an objects acceleration?
28
ASCOS 8.1 10 points
Question Given the formula, (average speed
total distance divided by total time), what is
the birds average speed if it flies 250 m for 25
s? (sd/t)
29
ASCOS 9.0 15 points
Question What is the term for a slanted surface
used to raise an object?
30
ASCOS 9.1 20 points
Question The reason you blow round bubbles and
not square ones is explained by what principle?
31
ASCOS 10.0 25 points
Question Two objects have the same masses. One
object is traveling vertically 25 km/s. The
other object is on the floor and is traveling
horizontally at a speed of 25 km/s. Which one
has the greatest kinetic energy and least
potential energy?
32
ASCOS 8.0
Topic Identify Newtons Three Laws of Motion.
33
ASCOS 8.1
Topic Identify and calculate the elements of
motion.
34
ASCOS 9.0
Topic Describe how mechanical advantages of
simple machines reduce the amount of force needed
for work.
35
ASCOS 9.1
Topic Describe the effect of force on pressure in
fluids.
36
ASCOS 10.0
Topic Differentiate between kinetic and potential
energy.
37
ASCOS ??
Topic Hodge Podge a mixture of questions from
all objectives.
38
ASCOS 8.0
Answer The acceleration will increase.
39
ASCOS 8.0
Answer It will remain in motion.
40
ASCOS 8.0
Answer inertia
41
ASCOS 8.0
Answer A force equal in size and opposite in
direction.
42
ASCOS 8.0
Answer Newtons third law
43
ASCOS 8.1
Answer The ball will have a greater acceleration
than the rock.
44
ASCOS 8.1
Answer It increases by 9.8 m/s until it reaches
terminal velocity.
45
ASCOS 8.1
Answer Above the bulls eye.
46
ASCOS 8.1
Answer 2172 N Fma (62kg 300kg)(6m/s/s)
(362 kg)(6m/s/s) 2172 N
47
ASCOS 8.1
Answer 50 m/s/s north Vf Vs /t 10,000 m/s
8,000 m/s 40s 2,000 m/s 40s 50 m/s/s.
48
ASCOS 9.0
Answer The longest hammer.
49
ASCOS 9.0
Answer Small input force over a long distance.
50
ASCOS 9.0
Answer The longest board
51
ASCOS 9.0
Answer The rope with 4 pulleys
52
ASCOS 9.0
Answer 2.5 Mechanical Advantage Output
force/Input force 225 N/ 90N 2.5
53
ASCOS 9.1
Answer 1.3 g/cm3 Dm/v 546 g/420 cm3 1.3
g/cm3
54
ASCOS 9.1
Answer Always from areas of high pressure to low
pressure
55
ASCOS 9.1
Answer Because of Bernoullis principle
(difference in speed of air) and decrease of
pressure which provides lift.
56
ASCOS 9.1
Answer It is the same as the weight of the ice
cube
57
ASCOS 9.1
Answer Evenly in all directions.
58
ASCOS 10.0
Answer Just before it hits the ground.
59
ASCOS 10.0
Answer The bottom of the biggest hill.
60
ASCOS 10.0
Answer The large truck traveling at 60 m/s.
61
ASCOS 10.0
Answer Kinetic energy is increased and potential
energy is not affected.
62
ASCOS 10.0
Answer It does not affect potential energy.
63
ASCOS 8.0
Answer It increases as its mass decreases and as
the force acting on it increases.
64
ASCOS 8.1
Answer 10 m/s sd/t 250m/25s 10 m/s
65
ASCOS 9.0
Answer Inclined plane
66
ASCOS 9.1
Answer Pascals principle
67
ASCOS 10.0
Answer They have the same kinetic energy but the
one traveling horizontally on the floor has the
least potential energy.