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Duplicate of Physics Honors Winter Final
N is equal to
What does the first graph show?
Duplicate of Physics Honors Winter Final
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Answers
1
What does the first graph show?
An object moving at a constant velocity
An object accelerating
An object moving in the positive direction
An object at rest
2
N is equal to
kg m2/s2
kg m
kg m/s2
kg m/s
3
Joule is the unit for
Power
Potential Energy
Kinetic Energy
Work
4
The sum of all mechanical and non-mechanical energy is
the Work-Kinetic Energy Theorem
total energy
mechanical energy
net energy
5
What are forces that cause objects to change motion?
Unbalanced Forces
Equilibrium
Balanced Forces
Net Force
6
Which of the following are vector quantities?
displacment
distance
Force
acceleration
7
During a free fall lab, you collect this data: 9.81, 9.85, 9.80 and 9.78. Describe your data:
accurate but not precise
precise but not accurate
precise
accurate
8
A Watt is derived from
a second
a Joule
work
power
9
Shows all the forces acting on a single object
Free-body diagram
Interaction Pairs
Inertia
Newtons second law
10
What is the second step of the scientific method?
hypothesis
Theory
interference
experiment
11
What is gravitational potential energy due to?
Motion
Height
Potential energy
Mass
12
What do you neglect in the law of conservation of mechanical energy?
Energy
Power
Friction
Heat
13
An object at rest or moving at a constant velocity is said to
have balanced forces acting on it
out of phase
have unbalanced forces acting on it
be in equilibrium
14
What is the velocity of a ball at its maximum altitude?
9.81 m/s
420 m/s
0 m/s
1337 m/s
15
When is the net force zero?
Never
equilibrium
Unbalanced Forces
Balanced force
16
After five seconds, the object represented by the position time graph is ( ).
At rest
Accelerating in the positive direction
Has transcended and ascended to Valhalla
Accelerating in the negative direction
17
T/F: Net work on all forces acting on an object = to the change in the objects kinetic energy
False
True
18
Which of these is a field force?
electromagnetic
tension
friction
air resistance
19
How are the vertical and horizontal motions of a projectile related?
They are equal
Inversely proportional
no correlation
They are directly proportional
20
What is the definition of work?
Minimum energy needed to remove electrons from a metal atom
When you apply a force to displace an object.
The rate at which work is done
A watt
21
Which is not the unit of main dimension used in physics?
m
kg
m/s
s
22
During a lab, you collect data that reflects the accepted value. This is called
precision
dependent value
theory
accuracy
23
The position time graph shows velocity in what direction?
Negative
Positive
All directions
At rest
24
A measure of the quantity of matter is
force
density
mass
weight
25
During a lab you collect his data for gravity: 8.76 8.88, 8.81, 8.79 and 8.83. You data is
not accurate
not precise
accurate
precise
26
The position time graph is ( ).
Red
Positive
At rest
Negative
27
True or False: The joule is the basic unit for power.
True
False
28
The rate at which an object moves through the atmosphere with no external forces acting on it.
air resistance
gravity
free fall acceleration
drag force
29
What is the SI unit for power?
Watt
M/S
Kg
Joule
30
What is the force that resists motion between two objects at rest?
kinetic friction
air pressure
static friction
tension
31
What causes an object to resist a change in motion?
strong nuclear force
inertia
Newton's third law
equilibrium
32
Vector sum of all fores acting on an object
Net Force
Total Force
33
You apply a force over a time period to change an objects momentum. You are utilizing
p=mv
Ft = mv
I = Ft
the impulse momentum theorem
34
You are running to get to your next class and you knock over your best friend. Which is true?
Your friends momentum was conserved
Kinetic energy was conserved
During the collision, momentum was conserved.
You lost momentum
35
Which of these concepts were displayed in the rocket balloon challenge?
Pythagorean theorem
Newton's Laws of Motion
centripetal force
power
36
The speed of an object at a specific point in its path when the object heads north
instantaneous acceleration
instantaneous velocity
velocity
speed
37
If I dont wear a seatbelt in a moving car and hit the brakes,why will I fly through the window?
Newtons First Law
Newtons Third Law
Newtons Second Law
38
Covert 2.8 hours to second.
10 086
9360
10 080
10 000
39
During a lab you collect his data for gravity: 9.98, 8.88, 10.76, 6.89 and 5.34. You data is
accurate
not accurate
not precise
precise
40
Which of the following are units?
v
kg
N
F
41
What does the average HS physics student most likely weigh?
175 lbs
73 kg
720 N
160lbs
42
What is the vector sum of all the forces acting on an action?
unbalanced force
equilibrium
net force
balanced force
43
9.81 m/s
2
the acceleration value when an object falls from the sky.
the acceleration of a ball tossed up into the air.
the value of gravity on the moon
the force of gravity
44
What is the ball's acceleration during its time in the air?
1337 m/s^2
0 m/s^1
-9.81 m/s^2
True
45
A merry-go-round is rotating fast. Sam is on the outside. Sue is on the inside. What's true?
Sue and Sam have the same tangential speed.
Sam has a higher rotational speed
Sam has a higher tangential speed
Sue and Sam have the same rotational speed.
46
What is the derived unit of force?
N
m/s2
Kg
F
47
Which of the following are scalar quantities?
mass
velocity
time
speed
48
True or False: Potential energy is associated with position, shape and condition.
True
False
49
Which of the following are variables?
m/s
P
a
s
50
Which of Newton's Laws explains why you bounce back up when you jump on a trampoline?
Third
Second
All of them
First
51
A ball rolls on a friction less surface at a constant velocity. This is which of Newton's Laws
Third
Second
First
all of them
52
What is inertia?
Acceleration
Friction
The tendency of an object to resist change in motion
Gravity
53
In F = ma, when you double mass, what happens to the acceleration? What is the relationship?
doubles
Inverse relationship
reduced by 2
Linear relationship
54
Why is your weight less on the moon?
the air is thicker
the force of gravity is different
you get more exercise on the Moon
your mass changes
55
The path that a projectile takes is a
inconsistant
trajectory
straight
parabolictory
56
What is this an example of: I shove Sonia and Sonia falls over?
Normal
Air Resistance
Push/pull
Friction
57
Which of the following is measured by derived unit?
time
joule
force
mass
58
The magnitude is defined as
the unit of a moving object
the amount or size of something
the distance an object travels
the brilliance of an object
59
What are field forces?
Involves physical contact
Tension
Friction
Doesn't involve physical contact between two objects
60
Which of the following is true of the conservation of energy in a closed system?
Total energy is always conserved.
KE is always conserved
PE is always conserved
Mechanical Energy is always conserved.
61
What is 385 lbs?
mass
gravity
weight
force
62
What is a form of non-mechanical energy?
Elastic Potential
Nuclear
Mechanical
Work
63
The change in position of an object
distance
displacement
velocity
momentum
64
What does the first graph show?
An object moving in the negative direction
An object accelerating.
An object at rest
An object moving at a constant velocity
65
The overall amount an object travels
displacement
position
distance
location
66
250N=(5m/s
2
)m what is the unit of m?
meters
mass
kilograms
distance
67
What does Newton's second Law state mass is directly proportionate to?
acceleration
velocity
force
distance
68
To find mechanical energy, you ___ kinetic and potential energy.
Add
Multiply
Divide
Subtract
69
In F = ma, when you double mass, what happens to the force? What is the relationship?
its doubles
This is a linear relationship
it is reduced by 2
This is an inverse relationship
70
Kinetic energy is energy due to
Power
Motion
Potential Energy
Shape
