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WorksheetsEnergy Practice
Total questions: 60
Worksheet time: 1hrs 15mins
Which roller coaster would be impossible to complete?
What kind of energy is in a moving skateboard?
Potential
Kinetic
What kind of energy is in a rock at the edge of a cliff?
Potential
Kinetic
At which point is potential energy the greatest?
Top of a hill
bottom of a hill
moving down a hill
moving up a hill
Potential energy that depends on height is called
kinetic energy
gravitational potential energy
elastic potential energy
mechanical energy
What is kinetic energy?
When an object is in motion
When an object is not in motion
all of the above
none of the above
What kind of energy is in gasoline in a car tank (car is not on)?
Potential
Kinetic
What kind of energy is in a battery?
Potential
Kinetic
What kind of energy is in a person running?
Potential
Kinetic
What kind of energy is in a stretched rubber band?
Potential
Kinetic
What energy transformation occurs as bioluminescent algae glow in the ocean?
Radiant --> Chemical
Thermal --> Radiant
Chemical --> Radiant
Thermal --> Chemical
What energy transformation occurs during photosynthesis?
Chemical --> Radiant
Thermal --> Chemical
Radiant --> Chemical
Mechanical --> Thermal
What energy transformations take place when a battery-operated radio is in use?
Electrical to chemical to light
Sound to chemical to mechanical
Chemical to electrical to sound
Light to electrical to thermal
Which of the following devices transforms electrical energy into mechanical energy?
An e-reader
a fan
a manual pencil sharpener
ipod
At which point is potential energy greatest?
W
X
Y
Z
When a pendulum swings, at which point is kinetic energy highest?
1
2
3
4
When a pendulum swings, at which point is potential energy at its greatest?
1
2
3
4
Conservation of energy states that energy cannot be ________ or ________, but can be altered from one form to another.
created, destroyed
gravity, force
heat, created
Which of the following is an exmaple of a change of kinetic energy into gravitational potential energy?
a person parachuting out of a plane
a car racing around an oval track
a person skiing down a hill
a person walking up a hill
What would have the greatest kinetic energy?
A car driving down a hill.
A person running down a hill.
A ball rolling down a hill.
leaves rolling down a hill
Which of the following describes the potential and kinetic energy for "Girl B"
PE= 200 J, KE= 200 J
PE= 400 J, KE= 0 J
PE= 100 J, KE= 300 J
PE= 0 J, KE= 400 J
Which would have more PE (if dropped from the same height)? A basketball or an elephant?
Basketball
Elephant
Which would have more KE (if the speed was the same)? A moving jet or a snail?
Moving Jet
Snail
What energy transformation occurs in the chameleon as it quickly launches its tongue to catch an insect?
Radiant --> Chemical
Thermal --> Chemical
Chemical --> Mechanical
Mechanical --> Chemical
An atom has 10 protons, 15 neutrons and 10 electrons what is its mass number.
20
10
5
25
What is the element's name of the atom pictured?
Fluorine
Neon
Argon
Potassium
How many valence electrons in Flourine (F)?
3
6
7
8
How many neutron are in the atom "K"?
19
40
39
20
Which statement best describes the elements in Group 2?
All element have 2 energy levels.
All elements have 2 valence electrons and are gases.
All elements have 2 valence electrons and are metals.
All elements have 2 valence electrons and are nonmetals.
How many energy levels are in the electron cloud of the elements in period 4?
1
2
3
4
Which statement best describes the elements in group 17?
All need to gain 1 valence electron.
All are unreactive nonmetals.
All need to give up 1 valence electron.
All are in the smae period.
Which elements have similar physical and chemical properties?
sodium and magnesium
sodium and potassium
potassium and calcium
sodium and calcium
Sam tests an element and finds it to be malleable, ductile and not magnetic. Which of these is most likely the element Sam tested?
Carbon
Boron
Copper
Sulfur
The horizontal (side to side) rows in the Periodic Table are called
groups
families
periods
atomic numbers
The vertical (up and down) columns in the Periodic Table are called
groups
towers
periods
atomic numbers
The red numbers in the image below represent ________
subscripts
coefficients
I don't know, and don't want to try
None of the answers are correct
The blue numbers in the image below represent ________
I don't know, and don't want to try
coefficients
subscripts
none of the answers are correct
How many atoms are there TOTAL in:
H2SO4
6
5
7
3
How many Sodium (Na) are in 6NaCl?
1
12
6
How many atoms of aluminum are on each side of the following equation: 4Al + 3O2 --> 2Al2 O3
2
6
1
4
How many O's are in Al₂(SO₄)₃
4
12
7
24
Number of H in 3(NH₄)₂CrO₄
4
2
8
24
Which of the following equations demonstrates an actual chemical reaction that forms a new substance?
A
B
C
D
Two clear colorless solutions were combined.
The student observed that the temperature changed from 25 •C to 23 •C when the solutions were combined and that a white substance rapidly formed and settled to the bottom of the container. What most likely happened to produce these results?
One of the original compounds came out of solution
The solutions reacted chemically
Some of the water froze into ice crystals
Rapid evaporation of water occurred, leaving a solid
What is the mass of H2O in the reaction above?
70.01
24.11
21.44
48.22
In a ___________change, a substance changes into a different substance.
Physical
Chemical
Absorbs heat during a chemical reaction,
substance seems cooler
catalyst
endothermic
exothermic
chemical
Releases heat during a chemical reaction,
substance seems warmer
catalyst
endothermic
exothermic
chemical
How many O's are in Al₂(SO₄)₃
4
12
7
24
The mass of what you end up with is always the
same as the mass you started with
law of conservation of matter
law of conservation of measurement
law of conservation of energy
law of conservation of mass
Which of these is an example of light energy being transformed into chemical energy?
A glow stick lights up when broken.
Water heated by the sun evaporates.
A plant makes sugar in the sunlight.
A battery causes a buzzer to vibrate.
Which kind of energy change occurs when a candle is burning?
Chemical to light.
Light to electrical.
Solar to heat.
Chemical to electrical.
Which type of energy transformation occurs when a flashlight shines?
chemical → thermal → electrical
chemical → electrical → light
thermal → chemical → light
chemical → electrical → chemical
When water falls through a dam and turns a turbine connected to a generator, electricity is produced. This electricity is often used to light our homes and offices. Which of the following shows the energy transformations that occurs?
electrical → light → mechanical
chemical → mechanical → electrical
mechanical → chemical → light
mechanical → electrical → light
Which is an example of kinetic energy?
A soccer ball is lying on the ground.
A person is standing in line.
A roller coaster is sitting at the top of a hill.
Water is flowing over a dam.
Which is an example of potential energy?
A child is hopping down the sidewalk.
A horse is galloping in a field.
A person is sitting on a horse.
A car is driving on the street.
When you are outside in the summer, it is important to use sunscreen to protect your skin from the sun's rays. The sun is transferring its energy to you by which method?
conduction
convection
radiation
chemical energy
Which items would have this energy transformation: chemical energy -> mechanical energy?
person running
candle burning
windmill turning
playing a violin
Which items would have this energy transformation: electrical energy -> thermal energy and light energy?
toaster
candle burning
windmill turning
Iron for your clothes
Which items would have this energy transformation: nuclear energy -> electrical energy?
tree growing fruit
nuclear power plant
solar calculator
windmill turning
