Transcript rankingtasksx

Ranking Tasks
Mr. Sapone
Each task should be accompanied by a full justification
on why you chose that order/answer.
•
•
•
•
Table of Contents
Density
Pressure
Weight
Rank each object from the highest to lowest density:
1kg
1kg
1kg
(a)
(b)
(c)
2kg
(a)
3kg
1kg
(b)
(c)
1kg
[1]
[2]
[3]
[4]
(d)
4kg
(d)
[1]
[2]
[3]
[4]
Rank each object from the most
dense to the least dense:
B
A
D
C
F
E
Most Dense
[1]
[2]
[3]
[4]
[5]
[6]
Least Dense
These objects are sitting on a table. Rank these from
highest pressure to lowest pressure exerted on the table.
1kg
2kg
Aluminum
1kg
3kg
Ice
1kg
1kg
Gold
1kg
4kg
Wood
[1]
[2]
[3]
[4]
[1]
[2]
[3]
[4]
[1]
[2]
[3]
[4]
Rank each object from the largest weight to smallest weight:
4kg
1kg
2kg
3kg
[1]
[2]
[3]
[4]
[5]
1kg
Rank each cube
of water from
least dense to
most dense.
[1]
[2]
[3]
[4]
[5]
Marietta.Edu
75°C
5°C
1°C
50°C
3°C
Rank each object from heaviest to lightest.
3.2kg
(a)
32000g
3200mg
(b)
(c)
320cg
[1]
[2]
[3]
[4]
(d)
Rank each object from longest to shortest (not drawn to scale).
3.2m
(a)
320cm
3300mm
(b)
(c)
0.032km
(d)
[1]
[2]
[3]
[4]
Rank each object from highest to lowest volume (not drawn to scale).
2L
(a)
2001mL
350cL
(b)
(c)
0.002kL
[1]
[2]
[3]
[4]
(d)
Rank each object from longest to shortest(not drawn to scale).
3x102cm
(a)
3x100m
3x105mm
(b)
(c)
3x10-1km
(d)
[1]
[2]
[3]
[4]
Rank each object from heaviest to lightest.
Justify your answer using metric conversions.
2g
2001mg
(a)
(b)
[1]
Heaviest
[2]
250cg
(c)
[3]
[4]
0.002kg
2.1x102cg
(d)
(e)
[5]
Lightest
Explain:
Rank each object from Most Dense to Least Dense.
Justify your answer using metric conversions.
2000g
20001mg
(a)
(b)
[1]
Highest
[2]
250cg
(c)
[3]
[4]
0.02kg
3.1x102cg
(d)
(e)
[5]
Lowest
Explain:
[(2x102) x (3x104)]mg
[(2x103) + (1x101)]g
(a)
2000x10-2kg
(b)
[(3x102) – (500x10-1)]cg
(c)
2.01x105cg
(d)
[(6x105) / (3x104)]hg
(e)
(f)
Rank each object from Most Dense to Least Dense. Justify your answer using metric conversions.
[1]
[2]
[3]
[4]
[5]
[6]
Rank each object from the most dense to the least dense:
2kg
(a)
2000g
(a)
2kg
2kg
(b)
(c)
3kg
10,000mg
(b)
(c)
2kg
[1]
[2]
[3]
[4]
(d)
3000g
(d)
[1]
[2]
[3]
[4]
Rank each object from hottest to coldest.
30°C
(a)
75°F
300°K
(b)
(c)
86°F
[1]
[2]
[3]
[4]
(d)
Rank each object from hottest to coldest.
-30°C
(a)
-75°F
(b)
-5°K
-86°F
(c)
(d)
[1]
[2]
[3]
[4]
P1
P2
P4
P3
P6
P7
Imagine these are all very deep, very oddly
shaped swimming pools. You have a pressure
sensor and are going to determine the pressure at
all seven locations. In which location(s) is pressure
the smallest? In which is it the greatest? Rank
them in order of smallest to highest pressure.
P5
Lowest Pressure
1
2
3
4
5
6
7
Highest Pressure
150°C
a
150°C
150°C
b
500kPa
a
500kPa
c
500kPa
c
b
150°C
a
200°C
b
Highest Pressure
[1]
[2]
[3]
Lowest Pressure
Highest Temp.
[1]
[2]
[3]
Lowest Temp.
175°C
c
Highest Pressure
[1]
[2]
[3]
Lowest Pressure
30
Motion of Four Objects
Rank the average
Velocity of Each Runner
from Fastest to Slowest
25
20
Position
(Meters)
15
10
5
1
2
4
3
Time (Seconds)
5
6
Position vs Time Graph
30
Position (m)
25
20
15
10
5
0
0
2
4
6
Time (s)
8
10
Greatest Displacement to Least
[1] _______ [2] _______ [3] _______ [4] _______ [5] _______ [6] _______
Greatest Distance Traveled to Least
[1] _______ [2] _______ [3] _______ [4] _______ [5] _______ [6] _______
Position vs Time Graph
30
Position (m)
25
20
15
10
5
0
0
2
4
6
Time (s)
8
10
Average Velocity during 10 seconds greatest to Least
[1] _______ [2] _______ [3] _______ [4] _______ [5] _______ [6] _______
Average Speed during 10 seconds greatest to least
[1] _______ [2] _______ [3] _______ [4] _______ [5] _______ [6] _______
Which ball reaches the end
first? Why?
Fastest
[1]
[2]
[3]
Slowest
Hollow Sphere
Solid Cube
(ice, low friction)
Which object
reaches the end
first? Why?
Solid Sphere
Fastest
Solid Ring
Solid Cylinder
[1]
[2]
[3]
[4]
[5]
Slowest
Image via Reddit Physics user ukukuku
All of these atoms have something in common except for one
of them. Pick the Odd Man Out and explain why.
Na+
Ne
Cation
O2-
or
F1-
N3-
Mg
Anion
Put these in the appropriate Column above.
2-
O
+
Li
An atom
that has lost
an electron.
An atom
that gained
an electron.
Write a mathematical
expression for determining
the charge on an atom.
Cation
o
r
Anion
Put these in the appropriate Column
2-
O
+
Li
An atom
that has lost
an electron.
An atom
that gained
an electron.
Write a mathematical
expression for determining
the charge on an atom.
15N37
16O18
11B3+
5
14C
6
17F9
27Al3+
13
40K+
19
All of these atoms above have something in common except
one. Find the Odd Man Out and explain why.
15N37
16O28
13Mg2+
12
All of these atoms above have something in common except
one. Find the Odd Man Out and explain why.
40Ar
18
21Ne
10
80Kr
36
27Al
13
All of these atoms above have something in common except
one. Find the Odd Man Out and explain why.
4He
2
All of these atoms have something in common except for one
of them. Pick the Odd Man Out and explain why.
Number of protons minus the number of electrons equals the charge on an atom.
#p - #e = charge
Protons
9
Protons
7
Protons
11
Protons
13
Electrons
10
Electrons
10
Electrons
10
Electrons
10
Charge
Charge
Charge
Charge
Symbol
Symbol
Symbol
Symbol
Protons
Protons
Protons
19
Electrons
Charge
Protons
20
Electrons
1+
Charge
2+
Electrons
18
Electrons
18
Charge
2-
Charge
1-
Symbol
Symbol
Symbol
Symbol
Protons
Protons
Protons
Protons
Electrons
Electrons
Electrons
Electrons
Charge
Charge
Charge
Charge
Symbol
Ba2+
Symbol
Cs1+
Symbol
Br1-
Symbol
P3-
Are you FISH FOOD?
Suppose you are
swimming in the ocean
and you see the fin of a
great white shark appear
in the water 150 feet away
from you. You are 40 from
the shore/safety and can
swim at a maximum rate
of 3 feet per second. The
shark can swim at a
frightening 35 feet per
second.
Will the shark be enjoying
you as a tasty snack?
Are you Meow Mix?
While on vacation, you get out of
your vehicle to explore the African
wild. You didn't realize how far
away from your vehicle you had
ventured when suddenly you spot
a lion about 200ft away from you.
You immediately begin to run
towards your car and the lion
darts after you. If your car is 80
feet away from you and you can
run at a maximum rate of 19ft/s
and the lion can run at a speed of
70ft/s, will you make it to the car
on time? Or will you be kitty food?
Does Mr. Sapone Poop on You?
Mr. Sapone duct taped you to a floor and put an inclined plane elevated at 45° at the base of your
head. On that inclined plane 1.5m from the floor is a 10kg block of poop that is sliding down towards
your face. The poop is the sort that doesn’t leave tread marks (i.e. it is frictionless). The principal
walks in to observe the class and he’s not too happy about the situation. He begins peeling you off
the floor but its going to take him 2 seconds to do so. Does the poop hit your face? Explain.
Distance poop travels____
Final velocity of poop____
Acceleration of poop____
Time to slide down______
Draw in the components of weight.
1.5m
45°
Does the alligator eat you?
50kg
25Kg
One Direction CDs
2 meters
4 meters
Mr. Sapone has you assist him
with the following physics
demonstration. He assures you
that his knowledge of physics is
beyond reproach and you will be
safe in the following situation. You
may have twice the mass of the
box filled with garbage but it is
placed at half your distance from
the pivot point so it generates
twice the torque allowing you to
balance perfectly. Is there
anything wrong with Mr. Sapone’s
reasoning? Explain.
CLIFF
Interior Crocodile Alligator (song)
Massless frictionless pulley
20kg
5kg
5kg
What is the acceleration of the system?
Atwood Machine
① Which animal hits the ground?
① Draw a free-body diagram.
② What is the acceleration of the
system?
③ How long does it take for one
animal to hit the ground?
④ What is the animal’s velocity
before impact?
A 3kg kitten and a 12kg puppy are
hanging on opposite sides of a
massless, frictionless pulley 0.5
meters from the ground.
⑤ If there was a Newton scale on
the ground and the puppy
landed on it, what would it
read?
What is the acceleration of the system?
Massless frictionless pulley
5kg
μ = 0.8
40°
What is the acceleration of the system?
Massless frictionless pulley
5kg
No Friction
40°
Don’t forget to
do your
homework!
Mr. Sapone tells you that you have
a lot of potential. Then he pushes
you off a 20m tall building. How
long do you have left to live?
PEi
PEf
KEi
KEf
Vyi
Vyf
t
If you were wearing your book bag filled up with 5kg
of physics homework, about two nights worth, what
would your final velocity have been before you
started smooching with the ground?
S.H.H.S.
YOU
MASS = 50KG
STRIKE!!!
As you lie broken and mangled at the base
of the 20m tall building, Mr. Sapone, who
didn’t have access to a piano at the time,
then throws a 7kg bowling ball down at you
with an initial velocity of 2m/s.
7k
g
PEi
PEf
KEi
KEf
S.H.H.S.
YOU
MASS = 50KG
Vyi
Vyf
t
ROFL
Thot
Before cheating on you with your best
friend, a woman rips out your heart
(0.3kg) and while it is still beating she
drops it off of a 25m high building.
S.H.H.S.
• What is the final velocity of your
heart before impact?
• How long will it fall?
• Create a line graph that plots
Energy (KE & PE) vs time.
• What is the KE of the heart when it
is 6m from the ground? Its
velocity?
You have 5 asteroids all moving in the same direction
as a rocket ship with the speeds listed below.
A
B
C
D
E
NASA
600m/s
700m/s
800m/s
400m/s
600m/s
1. List all the asteroids that are moving towards the ship?
2. List all the asteroids that are moving away from the ship?
3. Explain your reasoning.
Modified from TIPERs
400m/s
A
B
Vp = 10m/s
Vp = 8m/s
Vt = 24m/s
Four cases where a
person is running on a
flatbed train. In cases C
and D the person is
running in the same
direction as the train. In
cases A and B the person
is running in a direction
opposite of the train’s
motion. An observer is
standing outside the
tracks watching.
Vt = 30m/s
C
D
Vp = 12m/s
Vp = 4m/s
Vt = 20m/s
Vt = 16m/s
Rank speed of the runners from the perspective of an outside observer standing besides the tracks. Explain.
or
1
Greatest
2
3
4
Least
All the
same
All Zero
Cannot
Determine
Modified from TIPERs
A rope is pulled with a constant force on the boxes below. Each block is identical,
the surface is frictionless and the pulling force is the same in all three cases.
A
B
Pulling Force
C
Pulling Force
D
E
F
Pulling Force
Rank the acceleration of the blocks. Explain your reasoning.
or
1
Greatest
2
3
4
5
6
Least
All the
same
All
Zero
Cannot
Determine
Modified from TIPERs
In each figure the two blocks are at rest on a table. The blocks are labeled 1 and 2 and the mass of each is given.
A
B
C
100g
1
200g
200g
2
100g
1
D
100g
300g
2
1
300g
1
2
100g
2
Rank the the magnitude of the force that the bottom block (2) exerts on the top block (1) . Explain your reasoning.
or
1
Greatest
2
3
4
Least
All the
same
All Zero
Cannot
Determine
In each figure the two blocks are at rest on a table. The blocks are labeled 1 and 2 and the mass of each is given.
A
B
C
100g
1
200g
200g
2
100g
1
D
100g
300g
2
1
300g
1
2
100g
2
Rank the the magnitude of the force that the table exerts on the top block (1). Explain your reasoning.
or
1
Greatest
2
3
4
Least
All the
same
All Zero
Cannot
Determine
In each figure the two blocks are at rest on a table. The blocks are labeled 1 and 2 and the mass of each is given.
A
B
C
100g
1
200g
200g
2
100g
1
D
100g
300g
2
1
300g
1
2
100g
2
Rank the the magnitude of the force that the table exerts on the bottom block (2). Explain your reasoning.
or
1
Greatest
2
3
4
Least
All the
same
All Zero
Cannot
Determine
These four cubes are resting on a frictionless surface. Each cube is pushed and
pulled by different forces. Rank each object from the highest to lowest net force
Force arrows show direction only, they are not drawn to scale.
70N
100N
50N
100N
35N
65N
80N
90N
10kg
10kg
10kg
10kg
(a)
(b)
(c)
(d)
[1]
Highest
[2]
[3]
[4]
Lowest
Explain:
These four cubes are resting on a frictionless surface. Each cube is pushed and
pulled by different forces. Rank each object from the highest to lowest net force
Force arrows show direction only, they are not drawn to scale.
40N
30N
10kg
10N
(a)
[1]
Highest
[2]
75N
65N
60N
10kg
10kg
(b)
(c)
[3]
[4]
Lowest
85N
10N
90N
10kg
(d)
Explain:
These four cubes are resting on a frictionless surface. Each cube is pushed and pulled by
different forces. Rank each object from the highest to lowest acceleration.
Force arrows show direction only, they are not drawn to scale.
40N
30N
5kg
10N
(a)
[1]
Highest
[2]
75N
65N
60N
10kg
15kg
(b)
(c)
[3]
[4]
Lowest
85N
10N
90N
20kg
(d)
Explain:
These four cubes are resting on a frictionless surface. The same force (50N) is
applied to each cube. Rank each object from the highest to lowest acceleration:
Force = 50N
Force = 50N
Force = 50N
Force = 50N
2kg
3kg
1kg
4kg
(a)
(b)
(c)
(d)
[1]
Highest
[2]
[3]
[4]
Lowest
Explain:
These four cubes are resting on a frictionless surface. The same force (50N) is
applied to each cube. Rank each object from the highest to lowest acceleration:
Force = 50N
Force = 50N
Force = 50N
Force = 50N
2kg
3kg
1kg
4kg
(a)
(b)
(c)
(d)
[1]
Highest
[2]
[3]
[4]
Lowest
Explain:
These four cubes are resting on a table. Each cube is made of a different material.
Rank these cubes in terms of mass, weight and volume from largest to smallest.
(a)
(b)
(c)
(d)
Mass Highest to
[1]
Lowest
[2]
[3]
[4]
or
Not enough
information
Weight Highest
[1]
to Lowest
[2]
[3]
[4]
or
Not enough
information
Volume Highest
[1]
to Lowest
[2]
[3]
[4]
or
Not enough
information
D1-QRT21: THREE CHARGES IN A LINE II—FORCE
Three charged particles, A, B, and C, are fixed in place in a line. Charge C is twice as far from charge B as
charge A is. All charges have different magnitudes.
For each of the following combinations of charge signs, determine whether it is possible for the net
electric force on each charge due to the other two charges to be zero.
ΣF on charge A
A
B
C
+
A
+
B
+
C
+
A
+
B
C
+
A
B
+
C
+
A
B
C
A
+
B
+
C
A
+
B
C
A
B
+
C
-
-
-
ΣF on charge B
ΣF on charge C
Must be nonzero
Possibly zero
Must be nonzero
Possibly zero
Must be nonzero
Possibly zero
Must be nonzero
Possibly zero
Must be nonzero
Possibly zero
Must be nonzero
Possibly zero
Must be nonzero
Possibly zero
Must be nonzero
Possibly zero
Must be nonzero
Possibly zero
Must be nonzero
Possibly zero
Must be nonzero
Possibly zero
Must be nonzero
Possibly zero
Must be nonzero
Possibly zero
Must be nonzero
Possibly zero
Must be nonzero
Possibly zero
Must be nonzero
Possibly zero
Must be nonzero
Possibly zero
Must be nonzero
Possibly zero
Must be nonzero
Possibly zero
Must be nonzero
Possibly zero
Must be nonzero
Possibly zero
Must be nonzero
Possibly zero
Must be nonzero
Possibly zero
Must be nonzero
Possibly zero
D1-QRT05: THREE CONDUCTING SPHERES—CHARGE
Two conducting spheres rest on insulating stands. Sphere B is
smaller than Sphere A. Both spheres are initially uncharged and they
are touching. A third conducting sphere, C, has a positive charge. It
is brought close to (but not touching) Sphere B as shown.
(a) Is the net charge on Sphere A at this time (i) positive, (ii)
negative, or (iii) zero? Explain your reasoning.
Sphere A
Sphere
B
Sphere C
(b) Is the net charge on Sphere B at this time (i) positive, (ii)
negative, or (iii) zero? Explain your reasoning.
(c) Is the magnitude of the net charge on Sphere A (i) greater than,
(ii) less than, or (iii) equal to the magnitude of the net charge on
Sphere B? Explain your reasoning.
Sphere B is now moved to the right so that it touches Sphere C. As
a result of this move:
(d) Does the magnitude of the net charge on Sphere A (i) increase,
(ii) decrease, or (iii) remain the same? Explain your reasoning.
(e) Does the magnitude of the net charge on Sphere C (i) increase,
(ii) decrease, or (iii) remain the same? Explain your reasoning.
Sphere A
Sphere
B
Sphere C
D1-QRT05: THREE CONDUCTING SPHERES—CHARGE
Two conducting spheres rest on insulating stands. Sphere B is smaller than Sphere A. Both spheres
are initially uncharged and they are touching. A third conducting sphere, C, has a positive charge. It
is brought close to (but not touching) Sphere B as shown.
(a) Is the net charge on Sphere A at this time (i) positive, (ii) negative, or (iii) zero? Explain
C induces a negative charge on B, that is electrons will move from sphere A to sphere B to be
closer to the
positive charge on C, which induces a positive charge on A since it now has an electron
deficiency.
(b) Is the net charge on Sphere B at this time (i) positive, (ii) negative, or (iii) zero? Explain
The Sphere C induces negative charge on B because electrons will move to be closer to C.
(c) Is the magnitude of the net charge on Sphere A (i) greater than, (ii) less than, or (iii) equal to
the magnitude of the net charge on Sphere B? Explain
The magnitudes of the net charges on A & B must be equal since both were neutral to start and
for each electron that moved from A to B a positive was left behind on A.
Sphere B is now moved to the right so that it touches Sphere C. As a result of this move:
(d) Does the magnitude of the net charge on Sphere A (i) increase, (ii) decrease, or (iii) remain
the same?
Explain your reasoning.
There is no charge exchanged between spheres A and B when sphere B is moved.
(e) Does the magnitude of the net charge on Sphere C (i) increase, (ii) decrease, or (iii) remain the
same?
Explain your reasoning..
Charge (electrons) moves from B to C resulting in a lower net positive charge on C.
D1-QRT09: TWO CHARGES—FORCE ON EACH
In each case shown below, two charges are fixed in place and are exerting forces on each other.
For each case, draw a vector of appropriate length and direction representing the electric force acting
on each charge due to the other charge. Draw the vector representing the force with the length
proportional to the magnitude on the left charge above that charge; and draw the vector representing the
force with the length proportional to the magnitude on the right charge below that charge (see the
example). For each diagram, use the same scale as the example.
+Q
+Q
(a)
+2Q
+Q
(b)
-2Q
+Q
(c)
-Q
+2Q
(d)
-2Q
+2Q
Example
(e)
-Q
+2Q
(f)
-2Q
+2Q
“Cars don’t fly Dom!”
Parking Garage
Your 7m long car is parked on the roof of a parking
garage that is 35m tall. You ran out of beer and it
would take far too long to drive down all the floors
and across the street to the beer store. Fortunately for
you, the beer store which has a height of 25m is only
15m away. How fast do you need to be going to land
safely on the roof of the Beer Store so you can quickly
quench your thirst?
Beer Store.
Your 7m long car is parked on the roof of a parking
garage that is 35m tall. You ran out of beer and it
would take far to long to drive down all the floors and
to the beer store. Fortunately for you, the beer store
which has a height of 25m is only 15m away. How fast
do you need to be going to land safely on the roof of
the Beer Store so you can quickly quench your thirst?
The car can accelerate from 0 to 60mi/hr in 4.5s.
How long must the “runway” be for you to
achieve the necessary velocity? How long will it
take?
Parking Garage
Beer Store.
In the Epic movie speed a bad guy puts a
bomb on a bus and rigs it so the bus must
stay above 50mi/hr or the bomb
detonates killing everyone on board.
Unfortunately for the people on the bus
the highway the authorities shuttled
them on isn’t finished. Keanu Reeves
decides to have Sanrda Bullock floor it
and they leave the edge at 67mi/hr.
[1] if the bus is traveling vertically can it make it to the other side.
[2] Assuming the bus was a point particle and left the highway initially with only a
horizontal component of motion. How far below the first side must the other side of the
highway be in order to make the jump?
[3] Assuming the bus was a point particle, what angle ramp would be necessary for the
bus to make this jump?
If the distance between the tires is 25 feet and the distance between the frame of the
bus and ground 15inches, will the frame of the bus drag on the ground?
Element
Sc
Electronegativity 1.3
Be
Fe
H
P
1.5
1.8 2.1 2.4 2.4 2.5 2.5 2.8 3.0 3.5 4.0 1.5 3.0
ScO BeF SO HBr
Se
S
I
Br
Cl
O
F
Al
BeCl HP PSe SI
N
Rank the Melting Points of these Ionic Compounds
NaCl
Na2O
(+1)(-1) = -1
(+1)(-2) = -2
MgO
(+2)(-2) = -4
Rank the Melting Points of these Ionic Compounds From Highest to Smallest and justify
your answer! Also, write out their names as a review! Hint: they are all in the same period
so size differences are minimized and admit it, you know you love Coulomb’s law!
NaF
A
Na2O
MgO
AlF3
AlN
B
C
D
E
Rank the Melting Points of these Ionic Compounds From Highest to Smallest and justify
your answer! Also, write out their names as a review!
RbF
SrF2
SrO
CsBr
A
B
C
D
Rank the Melting Points of these Ionic Compounds From Highest to Smallest and justify
your answer! Also, write out their names as a review!
NaF
RbF
KF
LiF
A
B
C
D
Highest to Lowest Electrical conductivity? Why?
AlCl3
A
CaCl2
B
NaCl
C
Match the four atoms to their sizes
Potassium
Sodium
Lithium
Rubidium
Justify your answer:
Match the four atoms to their sizes
Neon
Krypton
Helium
Argon
Justify your answer:
Match the four atoms to their sizes
Neon
Carbon
Fluorine
Oxygen
Justify your answer:
Match the four atoms to their sizes
P
S
Se
As
Justify your answer:
Match the four atoms to their sizes
F
S
Se
Sn
Justify your answer:
Match the four atoms to their sizes
Na
Ca
Mg
K
Justify your answer:
Arrange the Atoms From Most reactive
to least reactive! Justify your answer.
Potassium
Sodium
Lithium
Rubidium
Arrange the Atoms From Most reactive
to least reactive! Justify your answer.
Justify your answer:
Neon
Krypton
Helium
Argon
Arrange the Atoms From Most reactive
to least reactive! Justify your answer.
Justify your answer:
Neon
Carbon
Fluorine
Oxygen
Arrange the Atoms From Most reactive
to least reactive! Justify your answer.
P
S
Se
As
Justify your answer:
Match the four atoms to their sizes
F
S
Se
Sn
Justify your answer:
Arrange the Atoms From Most reactive
to least reactive! Justify your answer.
Justify your answer:
Na
Ca
Mg
K