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WorksheetsPhysical Science Study Guide
Total questions: 187
Worksheet time: 3hrs 14mins
Where is potential energy at its maximum?
a
b
c
d
Where is kinetic energy at its maximum?
a
b
c
d
What is the kinetic energy at W, where the car is stopped?
0J
10,000J
20,000J
can not be determined
Q. What does the Law of Conservation of Energy state?
Energy can be created but not destroyed.
Energy can be created and destroyed.
Energy cannot be created but can be destroyed
Energy cannot be created or destroyed.
Q. What has to be true about an object for it to have kinetic energy?
it must be moving
it must be experiencing a net force
it must be elevated
it must be accelerating
When does an object have no kinetic energy?
when it is moving very slowly
when it has no electrical charge
when the only force that is acting on it is gravity
when it is at rest
You calculated PE at 1960 J and your KE at 225 J. What is your Total Mechanical Energy? Select the Equation you should use.
PE = mgh
KE = 1/2 (m) (v^2)
W=fd
TME = KE + PE
You calculated PE at 1960 J and your KE at 225 J. What is your Total Mechanical Energy?
225 J
3150 J
2185 J
1960 J
Which of the is the equation for calculating work?
W = Fd
W = ma
W = mv
W = mc2
Work is defined as applying a force on an object that displaces the object in the direction of the applied force. Which of the following IS NOT an an example of work being done on an object?
A waiter walking with a tray of food that he is holding with his hand under the tray.
A horse pulling a plow through a field.
A shopper pushing a cart down the aisle of a grocery sture.
A weightlifter lifting a barbell above his head.
Which of the following is an instance where a force is in the opposite direction of the displacement.
A car skidding to a stop on a roadway surface.
A student rolling a bowling ball down a bowling lane alley.
A pitcher throwing a baseball.
a man pushing a crate across a loading dock.
An instance where a force is appiled in the opposite direction of a displacement is called __________________ work.
negative
false
faux
opposite
If a ball tossed into the air has a maximum gravitational potential energy of 5.75 joules, what is its maximum kinetic energy in the same toss?
5.75 joules
11.14 joules
2.88 joules
7.93 joules
What is the mechanical energy of the roller coaster car?
100 joules
50 joules
2500 joules
1 joule
This drawing illustrates which of the following?
Conservation of Mechanical Energy
Conservation of Mass
Conservation of Momentum
Universal Gravitation
How much work is being done with 200 N of force to the right on object that moves 426 meters to the right? (assume the force and displacement are in the same direction)
85,200 J
45,620 J
90,480 J
62,329 J
You push against the back of your friends car that is stuck. You push and be become very tired, but the car does not move. Did you do work?
Yes, work was done
No, work wasn't done
Person A and Person B are both using the same amount of work to lift something. Person A takes half as much time to do it. Who has greater power.
Person A
Person B
Which of the following is the best example of work being done.
doing homework
lifting a box
pushing a stationary box
holding a box
W=5000 Joules
t=???
A 8.6 kg box is pushed across a floor 3.2 m with a force of 5.5 N. How much work is done on the box?
17.6 J
8.7 J
1.72 J
No work is done.
A student carries a 10.5 kg book bag 15.3 m. How much work is done on the book bag by the student?
No work is done.
160.65 J
1.46 J
25.8 J
An object of mass 6.8 kg is lifted to a height of 1.3 m. How much work is done on the object?
8.84 J
8.1 J
5.23 J
No work is done.
If the direction an object is displaced is the same as the direction of a force applied to it:
Positive work is done.
Negative work is done.
No work is done.
If the direction of an applied force is anti-parallel (opposite) to the direction an object is moving:
Negative work is done.
Positive work is done.
No work is done.
If the direction an object is displaced is perpendicular to the direction of a force applied to it:
No work is done.
Positive work is done.
Negative work is done.
How much power is required to do 40.2 J of work in 3.3 s?
12.18 W
132.66 W
43.5 W
0.08 W
In order to do 20.5 J of work in 0.46 s, how much power is required?
44.57 W
9.43 W
32.35 W
11.56 W
A force of 4.6 N moves a 2.7 kg box a distance of 3.3 m in 6.8 s. How much power is exerted?
2.23 W
6.03 W
17.4 W
278.7 W
How much work is done when 114 W of power is used over 0.62 s?
70.68 J
183.87 J
57.62 J
No work is done.
How much work is done when 114 W of power is used over 0.62 s?
70.68 J
183.87 J
57.62 J
No work is done.
The roller coaster car has a mass of 500 kg. It is pulled from position 1 to 2 (30 m) by a motor. At the top of the ride the vertical distance top to bottom is 20 m. The motor pulls the car with a 4000 N force. Calculate the work done getting the car to the top of the ride.
100 000J
120 000J
800 000J
90 000J
A waiter carries a tray full of meals above his head by one arm straight across the room at constant speed.
An 80 N rope tension force is used to slowly pull a wagon 50 m up a hill. Calculate the work done by the rope if it pulls parallel to the hill
-4000 J
4000 J
How high up is a 3200-kg plane if it has 960000 J of potential energy?
10 m
30 m
307200000 m
300 m
The law of (a) states that energy in a system can change forms but can never be created or destroyed.
What is the kinetic energy of a ball with a mass of 5kg rolling at 10m/s
50 J
500 J
250 J
25 J
If a football player wants to become better at tackling by increasing his or her kinetic energy, how can the player do this?
Increase his/her height
Increase his/her speed
Increase his/her mass
Decrease his/her speed
On a roller coaster, where is maximum kinetic energy?
At the bottom of a big hill
When going around a corner
At the top of a big hill
When force is used to move an object across a distance, this is called...
effort
power
energy
work
If the object does not move then what is happening
nothing
work
power
no work is being done on the object
What is the equation for work?
W = mass x acceleration
W = force x distance
W = force/distance
W = speed/time
In which scenario is work = 0 J ?
Pushing a stationary wall
Pulling a trolley car
Pushing a book across the table
Dropping a set of keys from a height, h.
Energy in the form of motion.
mechanical energy
potential energy
kinetic energy
momentum
How fast does gravity accelerate?
9.8 m/s
6.67 x 10-11kg
6.67 m2/s2
9.8 m/s2
Na1+ F1-
K1+ S2-
Al3+ O2-
What is the name of the following compound: NaCl
sodium chloride
sodium (I) chloride
sodium chlorine
sodium (I) chlorine
What is the name of the following compound: CuBr2
copper bromine
copper bromide
copper (I) bromide
copper (II) bromide
What is the name of the following compound: K2SO4
potassium sulfur
potassium sulfate
potassium (I) sulfate
potassium (II) sulfide
What is the name of the following compound: Mn2O3
manganese oxide
manganese (II) oxide
manganese (III) oxide
magnesium oxide
What is the what charge of manganese in the compound: Mn2O3
+1
+2
+3
-3
What is the charge of copper in the compound: CuBr2
+1
+2
-1
-2
What is the what charge of lead in the compound: lead (IV) iodide
+1
+4
+6
-1
Which is the correct formula for the compound: Calcium Oxide
CaO
CaO2
Ca2O
Which is the correct formula for the compound: Barium Hydroxide
BaOH
Ba(OH)2
BaOH2
Ba2OH
Which is the correct formula for the compound: lead (II) fluoride
Pb2F
PbF2
PbF
PbF7
Why do atoms form chemical bonds?
Atoms bond to become less chemically stable.
Atoms bond to change from liquid to a solid.
Atoms bond to become more chemically stable.
Atoms bond to make new substances.
An ionic bond forms when electrons are __________ between atoms.
shared
transferred
Ionic bonds most likely form between _________.
2 nonmetals
2 metalloids
a nonmetal and a metal
2 metals
When forming ionic bonds, metal atoms tend to ________.
lose electrons
gain electrons
share electrons
lose protons
When forming ionic bonds, nonmetal atoms tend to ________.
lose electrons
gain electrons
share electrons
lose protons
When forming ionic bonds, nonmetal atoms tend to become ________.
cations
anions
neutral
ionic
When forming ionic bonds, metal atoms tend to become ________.
cations
anions
neutral
ionic
When a binary ionic compound is named, the positive charged ion will always be written _______.
first
second
with a Roman Numeral
with -ide
When a binary ionic compound is named, the name of the ________ will end in with the suffix _______.
metal // -ate
metal // -ide
nonmetal // -ate
nonmetal // -ide
How many elements are present in a binary compound?
1
2
3
4
Which is a binary compound?
potassium hydroxide
sodium chlorate
silver nitrate
barium sulfide
Which of the following compounds is NOT an ionic compound?
CaCl₂
NaCl
BF₃
Fe₂(CO₃)₃
What is the charge of a sodium ion?
S⁺¹
S⁻¹
Na⁺¹
Na⁻¹
What is the charge of a magnesium ion?
Mg⁺²
Mg⁻²
Mn⁺²
Mn⁻²
What is the charge of a iron in the compound iron (III) sulfide?
Fe⁺²
Fe⁻²
Fe⁺³
Fe⁻³
What is the charge of a copper in the compound copper (II) chloride?
Cu⁺²
Cu⁻²
Cu⁺¹
Cu⁻¹
Which compound formula is written correctly for copper (II) chloride?
Cu⁺²Cl⁺¹
Cu₁Cl₂
Cu₂Cl
CuCl₂
Which compound formula is written correctly for lead (IV) sulfide?
PbS₂
Pb(IV)S
Pb⁺⁴S⁻²
Pb₂S₄
What is the correct formula for
ammonium chloride?
NH₄Cl₂
(NH₄)₂Cl
NH₄Cl
ClNH₄
What is the correct formula for
iron (III) nitrite?
Fe₃NO₂
Fe(NO)₂
Fe(NO₂)₃
Fe₂NO₃
What is the correct formula for
copper (I) phosphide?
Cu₃P₂
Cu₃P
Cu₂P₃
CuP
What is the correct formula for
tin (IV) selenide?
Sn₂Se₂
Sn₂Se₄
Sn₂Se
SnSe₂
What is the correct formula for
potassium + sulfur?
K₂S
P₂S
KS
KS₂
What is the correct formula for
aluminum + bromine?
AlBr
Al₃Br
Al₂Br₃
AlBr₃
How many different elements are in the compound
lithium carbonate (Li₂CO₃)?
2
3
6
7
How do the following two ions bond together?
K+1 S-2
KS
K8S
K6S3
K2S
How do the following two elements bond together?
Al+3 O-2
AlO
Al2O3
Al3O6
Al3O2
What is the correct formula for
magnesium hydroxide?
MgOH
Mg2OH
Mg(OH)2
Mg2OH2
What is the charge on the hydroxide ion?
0
+1
-1
-2
Name the following ionic compound:
LiNO3
lithium nitrate
lithium (II) nitrate
lithium nitride
lithium nitrous oxide
Name the following ionic compound:
MgSO4
magnesium sulfoxide
magnesium sulfide
magnesium sulfate
magnesium oxide
Name the following ionic compound:
BeCl2
beryllium chlorine
beryllium (II) chloride
beryllium chloride
beryllium dichloride
three
tri-
four
tetra-
six
hexa-
seven
hepta-
eight
octa-
one
mono-
two
di-
five
penta-
nine
nona-
ten
deca-
N2O4
CO2
CCl4
NF3
H2O
dinitrogen tetroxide
dinitrogen pentoxide
disulfur decafluoride
chlorine trifluoride
trilithium mononitride
trilithium mononitride
1
What is it called if there are three-pairs of electrons being shared?
Triple Bond
Three Single Bonds
Tribond
Double and Single Bond Combo
Which of the following is the best representation of a molecule of fluorine (F2)?
A
B
C
D
Carbon is in 4A, so how many bonds can it form based on electrons needed to fill its outer shell?
1
3
4
5
What bond is formed between a metal and a nonmetal?
Covalent bond
Ionic bond
Hydrogen bond
Metallic bond
When two nonmetals do not share electrons evenly, the resulting covalent bond will be
nonpolar
polar
ionic
metallic
Since covalent compounds do not have free charges, they are
good conductors
poor conductors
ionic
metallic
Which would be the only situation where valence electrons would be shared evenly?
metals and nonmetals
different nonmetals
nonmetals of the same element
metalloids of the same element
Which formula is for phosphorus trichloride?
KCl3
PCl3
K3Cl
P3Cl
Silicon dioxide is the compound in sand. What is its formula?
SO2
NaO2
SiO2
SiO
What is the formula for diphosphorus pentoxide?
P2O5
PO5
P5O2
P2O6
The octet rule means that all valence shells want to have the number......
1
9
8
16
How many valence electrons does Helium Have?
1 Valence electron
2 Valence electron
3 Valence electron
4 Valence electron
5 Valence electron
How many valence electrons does Nitrogen Have?
1 Valence electron
2 Valence electron
3 Valence electron
4 Valence electron
5 Valence electron
How many valence electrons does Magnesium Have?
1 Valence electron
2 Valence electron
3 Valence electron
4 Valence electron
5 Valence electron
How many valence electrons does Aluminum Have?
1 Valence electron
2 Valence electron
3 Valence electron
4 Valence electron
5 Valence electron
