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3rd Qtr CRT Mind Power

VIEWS: 5 PAGES: 67

									      3rd Quarter CRT Review - 1

8.0   8.1    9.0     9.1   10.0    ??
5      5      5       5      5     5
10    10      10     10     10     10
15    15      15     15     15     15
20    20     20      20     20     20
25    25     25      25     25     25
      ASCOS #8.0 – 5 points
Question
According to Newton’s 2nd law, if
there is an increase in force, what
will happen to the acceleration of
the object?
     ASCOS #8.0– 10 points
Question
According to Newton’s first law of
motion, what will a moving object
that is not acted on by an
unbalanced force do?
     ASCOS #8.0– 15 points
Question
According to Newton’s Laws, when
the brakes are suddenly applied to
a moving vehicle, what causes a
person to continue to move forward
in his seat?.
     ASCOS #8.0– 20 points
Question
According to Newton’s third law of
motion, when a force is exerted on
an object what does a second force
produce?
     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?
      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?
      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?
     ASCOS #8.1– 15 points
Question
Due to projectile motion, where
should Mr. Smith aim when
shooting at a target?
     ASCOS #8.1– 20 points
Question
Given the formula (F=ma), how
much force is needed to accelerate
a 62 kg rider and her 300 kg motor
scooter at 6 m/s/s.
       ASCOS #8.1– 25 points
Question
Given the formula, (acceleration = final
velocity – starting velocity divided by time),
what is a plane’s 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?
      ASCOS #9.0– 5 points
Question
A construction worker is given four
hammers of different lengths.
Which hammer would have the
greatest mechanical advantage?
     ASCOS #9.0– 10 points
Question
How would you describe the input
force and distance of a screw?
      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?
     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?
     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?
      ASCOS #9.1– 5 points
Question
A 546 g fish displaces 420 cm3 of
water. What is the density of the
fish? (D=m/v)
     ASCOS #9.1– 10 points
Question
How to gases and air flow?
      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?
      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?
     ASCOS #9.1– 25 points
Question
In what direction do gases exert
pressure?
     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?
     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?
     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?
     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?
    ASCOS #10.0– 25 points
Question
By increasing the speed of an
object what happens to its
potential energy?
     ASCOS #8.0– 5 points
Question
What does Newton’s second law of
motion state about an object’s
acceleration?
     ASCOS #8.1– 10 points
Question
Given the formula, (average speed
= total distance divided by total
time), what is the bird’s average
speed if it flies 250 m for 25 s?
(s=d/t)
     ASCOS #9.0– 15 points
Question
What is the term for a slanted
surface used to raise an object?
     ASCOS #9.1– 20 points
Question
The reason you blow round bubbles
and not square ones is explained
by what principle?
      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?
           ASCOS #8.0
Topic
Identify Newton’s Three Laws of
Motion.
           ASCOS #8.1
Topic
Identify and calculate the elements
of motion.
          ASCOS #9.0
Topic
Describe how mechanical
advantages of simple machines
reduce the amount of force needed
for work.
            ASCOS #9.1
Topic
Describe the effect of force on
pressure in fluids.
          ASCOS #10.0
Topic
Differentiate between kinetic and
potential energy.
           ASCOS #??
Topic
Hodge Podge – a mixture of
questions from all objectives.
           ASCOS # 8.0
Answer
The acceleration will increase.
           ASCOS # 8.0
Answer
It will remain in motion.
          ASCOS # 8.0
Answer
inertia
           ASCOS # 8.0
Answer
A force equal in size and opposite
in direction.
           ASCOS # 8.0
Answer
Newton’s third law
           ASCOS # 8.1
Answer
The ball will have a greater
acceleration than the rock.
            ASCOS # 8.1
Answer
It increases by 9.8 m/s until it
reaches terminal velocity.
           ASCOS # 8.1
Answer
Above the bull’s eye.
          ASCOS # 8.1
Answer
2172 N [F=ma = (62kg +
300kg)(6m/s/s) = (362 kg)(6m/s/s)
= 2172 N]
           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.]
          ASCOS # 9.0
Answer
The longest hammer.
           ASCOS # 9.0
Answer
Small input force over a long
distance.
          ASCOS # 9.0
Answer
The longest board
           ASCOS # 9.0
Answer
The rope with 4 pulleys
           ASCOS # 9.0
Answer
2.5 [Mechanical Advantage =
Output force/Input force = 225 N/
90N = 2.5]
          ASCOS # 9.1
Answer
1.3 g/cm3 [D=m/v = 546 g/420 cm3
= 1.3 g/cm3]
           ASCOS # 9.1
Answer
Always from areas of high pressure
to low pressure
           ASCOS # 9.1
Answer
Because of Bernoulli’s principle
(difference in speed of air) and
decrease of pressure which
provides lift.
            ASCOS # 9.1
Answer
It is the same as the weight of the
ice cube
            ASCOS # 9.1
Answer
Evenly in all directions.
           ASCOS # 10.0
Answer
Just before it hits the ground.
           ASCOS # 10.0
Answer
The bottom of the biggest hill.
           ASCOS # 10.0
Answer
The large truck traveling at 60 m/s.
           ASCOS # 10.0
Answer
Kinetic energy is increased and
potential energy is not affected.
           ASCOS # 10.0
Answer
It does not affect potential energy.
           ASCOS # 8.0
Answer
It increases as its mass decreases
and as the force acting on it
increases.
           ASCOS # 8.1
Answer
10 m/s [s=d/t = 250m/25s = 10 m/s]
          ASCOS # 9.0
Answer
Inclined plane
           ASCOS # 9.1
Answer
Pascal’s principle
           ASCOS # 10.0
Answer
They have the same kinetic energy
but the one traveling horizontally
on the floor has the least potential
energy.

								
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