3rd Quarter CRT Review - 2

1
3rd Quarter CRT Review - 2
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2
ASCOS 8.0 5 points
Question What factor explains the tendency of all
objects to resist any change in motion?
3
ASCOS 8.0 10 points
Question What type of activity best demonstrates
Newtons third law of motion?
4
ASCOS 8.0 15 points
Question 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 Which of Newtons laws explain inertia?
6
ASCOS 8.0 25 points
Question Which of Newtons Laws states that for
every action there is an equal and opposite
reaction?
7
ASCOS 8.1 5 points
Question If an astronaut throws a ball in space,
when will the ball stop?
8
ASCOS 8.1 10 points
Question When the driver of a car suddenly makes
a sharp turn, why will the passenger slide to the
side of the car?
9
ASCOS 8.1 15 points
Question Use Newtons second law of motion (Fma)
to calculate the acceleration of a 12 kg mass if
a force of 45 N acts on it.
10
ASCOS 8.1 20 points
Question Use Newtons second law of motion (Fma)
to calculate the mass of an object when a force
of 28 N accelerates the object 3 m/s/s.
11
ASCOS 8.1 25 points
Question Given the formula, (acceleration final
velocity starting velocity divided by time),
what is the acceleration of the wind if it blows
with a velocity of 15 m/s south and five seconds
later, the winds velocity is 20 m/s south?
12
ASCOS 9.0 5 points
Question What type of simple machine is a jar lid?
13
ASCOS 9.0 10 points
Question Two bicycles ramps have the same height.
The first ramp is twice as long as the second
ramp. Why does the first ramp have a better
mechanical advantage?
14
ASCOS 9.0 15 points
Question What type of simple machine is an
inclined plane with one or two slanting sides?
15
ASCOS 9.0 20 points
Question When a machine increases the size of the
force exerted, what happens to the distance
through which the force is exerted?
16
ASCOS 9.0 25 points
Question To open a bottle, Mary applies 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 syringe with air is stoppered. It is
then pushed in. What can be said of the original
air pressure as compared to the final air
pressure?
18
ASCOS 9.1 10 points
Question What is the density of a 50 cm3 sample
of liquid with a mass of 300 g? (Dm/v)
19
ASCOS 9.1 15 points
Question What is the pressure exerted on the
floor by a 5,000 N crate with an area of 10 m2?
(PaF/a)
20
ASCOS 9.1 20 points
Question What is the SI unit for pressure?
21
ASCOS 9.1 25 points
Question What is the weight of a rock with an
area of 10m2 that exerts a pressure of 250 Pa in
correct SI units? (PaF/a)
22
ASCOS 10.0 5 points
Question What is the SI unit for energy?
23
ASCOS 9.1 10 points
Question What volume of fluid does an object
displace?
24
ASCOS 9.1 15 points
Question What would happen if astronauts, who
wear pressurized suits in space, took their suits
off to go outside of the spaceship?
25
ASCOS 9.1 20 points
Question Why do hydraulic devices use liquids
instead of gases?
26
ASCOS 9.1 25 points
Question Why do you not notice atmospheric
pressure on your body?
27
ASCOS 8.1 5 points
Question What causes the napkins to stay on the
picnic table even though there is a slight breeze?
28
ASCOS 8.1 10 points
Question What factors cause a change in
acceleration?
29
ASCOS 8.1 15 points
Question What is needed to calculate an objects
acceleration?
30
ASCOS 8.1 20 points
Question What is the force that opposes motion
between two surfaces that are touching?
31
ASCOS 8.1 25 points
Question What type of friction is also known as
air resistance?
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 ?
Topic Differentiate between kinetic and potential
energy. Describe the affect of force on
pressure in a fluid.
37
ASCOS ??
Topic Hodge Podge a mixture of questions from
all objectives.
38
ASCOS 8.0
Answer inertia
39
ASCOS 8.0
Answer A rocket maneuvering in space, a balloon
flying around the room, you sitting in a chair, a
rocket launching at Cape Canaveral
40
ASCOS 8.0
Answer inertia
41
ASCOS 8.0
Answer first law of motion
42
ASCOS 8.0
Answer Newtons third law
43
ASCOS 8.1
Answer The ball will remain in motion forever or
until it hits another object.
44
ASCOS 8.1
Answer inertia
45
ASCOS 8.1
Answer 3.75 m/s/s Fma therfore aF/m
45N/12kg 3.75 m/s/s
46
ASCOS 8.1
Answer 9.3 kg Fma therefore mF/a 28N/3m/s/s
9.3 kg
47
ASCOS 8.1
Answer 1 m/s/s south Vf Vs /t 20m/s 15m/s
5s 5 m/s 5s 1 m/s/s.
48
ASCOS 9.0
Answer screw
49
ASCOS 9.0
Answer The ramp is longer so less force is
required to ride up.
50
ASCOS 9.0
Answer wedge
51
ASCOS 9.0
Answer Distance must decrease
52
ASCOS 9.0
Answer 2.5 Mechanical Advantage Output
force/Input force 225 N/ 90N 2.5
53
ASCOS 9.1
Answer The original is less than the final.
54
ASCOS 9.1
Answer 6 g/cm3 Dm/v 300g/50cm3 6
g/cm3
55
ASCOS 9.1
Answer 500 Pa Pa F/a 5,000N/10m2 500 Pa
56
ASCOS 9.1
Answer Pa (Pascal)
57
ASCOS 9.1
Answer 2,500 N Pa F/a therefore FPa x a
250 Pa x 10 m2 2,500 N
58
ASCOS 10.0
Answer joule
59
ASCOS 9.1
Answer A volume equal to its own volume
60
ASCOS 9.1
Answer The fluids in their bodies would overcome
the pressure outside of their bodies, and they
would explode.
61
ASCOS 9.1
Answer Gases can be compressed and liquids cannot
62
ASCOS 9.1
Answer Because the fluids inside your body also
exert pressure outward
63
ASCOS 8.1
Answer Static friction
64
ASCOS 8.1
Answer A change in direction or velocity
65
ASCOS 8.1
Answer Starting velocity, final velocity, and the
total time it takes to change velocity
66
ASCOS 8.1
Answer friction
67
ASCOS 8.1
Answer Fluid friction