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WorksheetsEnergy and Transformations Review
Total questions: 65
Worksheet time: 38mins
The process of changing energy from one form to another.
transmission
transportation
transformation
The law of conservation of energy states that energy can neither be destroyed nor created. According to this law which of these equations is correct?
E=mc2
KE = PE
Energy in = energy out
Energy in = power in
Energy of moving parts
electrical
chemical
mechanical
Energy stored in the bonds of chemical compounds
potential chemical
sound
nuclear
Energy caused by moving electrons
radiant
chemical
electrical
Energy caused by fusion or fission of atoms' nuclei
mechanical
nuclear
chemical
Heat energy
thermal
radiant
sound
Wind
mechanical energy
thermal energy
nuclear energy
radiant energy
Bow and arrow
radiant energy
thermal energy
chemical energy
mechanical energy
Fire
thermal energy
mechanical energy
nuclear energy
sound energy
Talking
thermal energy
radiant energy
sound energy
mechanical energy
Lightning
electrical energy
nuclear energy
sound energy
chemical energy
Fuel
chemical energy
thermal energy
mechanical energy
sound energy
Fusion of atoms
electrical energy
nuclear energy
radiant energy
thermal energy
Check the types of energy transformation we see when we use a hairdryer. (3)
mechanical energy
thermal energy
electrical energy
chemical energy
Check the types of energy transformation we see when we use an electric keyboard. (2)
electrical energy
sound energy
chemical energy
nuclear energy
Check the types of energy transformation we see when we use a hot air balloon. (3)
chemical energy
thermal energy
mechanical energy
electrical energy
When a hair dryer is being used, one of the energy transformations that takes place is ____.
chemical to electrical
electrical to chemical
electrical to mechanical
mechanical to electrical
When electrical energy is “used” by an electric light, what really happens to the energy?
It disappears
It changes to matter
It stops the electrical light
It is given off as other forms of energy
In the simple act of lighting a match, chemical energy stored in the match head is transformed into heat and light. What is true about this energy transformation?
Most of the energy is lost when the match is struck.
New energy in the form of light and heat is created when the match is struck.
All of the potential chemical energy is transformed into heat and light energy.*
Some of the chemical energy is transformed into heat and light and the rest is converted into matter.
Predict the energy transformation that occurs when Carson sands a piece of wood with sandpaper.
chemical energy to heat energy
heat energy to mechanical energy
mechanical energy to heat energy
mechanical energy to chemical energy
On a cold, winter day, Sheena rubs her hands together. Stored chemical energy is transformed into mechanical energy. Due to the Law of Conservation of Energy some of the energy is also transformed into ____.
heat energy
light energy
solar energy
kinetic energy
The stored energy in a battery can BEST be described as:
kinetic
nuclear
thermal
chemical
Energy appears in many forms. What form of energy is lightning?
sound energy
magnetic energy
electrical energy
mechanical energy
All of the following are forms of energy EXCEPT:
heat
light
friction
electrical
Light is an example of what type of energy?
nuclear
chemical
gravitational
electromagnetic
To pull up a bucket of water from a well, George pulled hard on a handle to wind up a rope. Which kind of energy was George applying to the handle?
chemical energy
frictional energy
potential energy
mechanical energy
Gasoline, wood, water behind a dam, and a boulder on the edge of a cliff all represent some form of potential energy. What form of potential energy do gasoline and wood have in common?
heat
light
chemical
mechanical
______ energy is produced when a force causes a substance to vibrate, and the energy is transferred through the substance in a wave.
heat
light
sound
mechanical
Fossil fuels such as gas, oil, and coal have what kind of energy?
nuclear energy
chemical energy
electrical energy
mechanical energy
One of these items transforms electrical energy into sound. It is
firecracker.
a violin.
a radio.
a drum.
A student needs help completing an energy transfer diagram for a ceiling fan. Which BEST fills in the blanks labeled M and N to describe the transfer of energy?
N: Electrical and M: Potential energy
N: Light energy and M: Electrical energy
N: Electrical energy and M: Kinetic energy
N: Mechanical energy and M: Electrical energy
Energy is the ability to do
things
work
transform
Energy is also the ability to cause a
change
force
situation
Energy is measured in
distance
newton's
joules
True or False: An object can have energy when nothing is happening.
True
False
Mechanical energy is the sum of _________ and potential energy.
distance
kinetic
stored
Kinetic energy is the energy that a __________ object possesses.
stationary
moving
stored
_____________ potential energy is energy that is stored by objects that are above the Earth's surface.
gravitational
elastic
atmospheric
____________potential energy is energy stored by an object that can stretch or shrink.
gravitational
elastic
atmospheric
An archers bow is an example of
gravitational potential energy
elastic potential energy
kinetic energy
___________ energy is the energy required to bond atoms together.
thermal
chemical
electromagnetic
Digestion is an example of
chemical energy
nuclear energy
thermal energy
Energy that is derived from the forces that holds atoms together.
electrical energy
light energy
nuclear energy
A ball is thrown into the air as shown. At what point does it have the LEAST stored energy?
Point A- before it is thrown
Point B- the instant it leaves the hand
Point C- at its highest point off the ground
Point D- after it hits the ground
A book sitting on a table has potential energy because of the gravitational pull of Earth. Which of the following would increase the potential energy of the book?
Sliding it across the table
Opening it to the middle
Dropping it on the floor
Lifting it to a high shelf
The graph shows the kinetic energy of both a school bus and a pickup truck as they move at various speeds.
Under which of the following conditions can the pickup truck have more kinetic energy than the school bus?
The pickup truck is moving at 1 m/s and the school bus is moving at 2 m/s.
The pickup truck is moving at 4 m/s and the school bus is moving at 2 m/s.
The pickup truck is moving at 2 m/s and the school bus is moving at 3 m/s.
The pickup truck is moving at 4 m/s and the school bus is moving at 3 m/s.
The kinetic energy of the pendulum is increasing, and its potential energy is decreasing when it moves from point–
1 to 2.
3 to 4.
4 to 5.
3 to 2.
The energy stored in an object not moving.
Kinetic Energy
Relative Energy
Potential Energy
Work Energy
The ability of a system to do work.
Stored Energy
Relative Position
Energy
Speed
As speed increases, kinetic energy _________________
Stays the same
Increases
Decreases
None of the above
Kinetic energy is proportional to the ________________________ of an object.
Energy
Work
Mass
Temperature
_______________ potential energy depends on its distance from the ground. The potential energy decreases the _____________ the object is to the ground.
Gravitational; Closer
Gravitational; Further
Kinetic; Closer
Kinetic; Further
A ball is hit into the air. At its highest point, the ball has the _____________ amount of potential energy. Right before it hits the ground, it has the _______________ amount of potential energy.
maximum, minimum
minimum, maximum
minimum, minimum
maximum, maximum
Engineers design computers to cool down quickly so they do not break. What happens to the molecules in a computer when the temperature of the computer decreases?
a. The energy of the molecules in the computer decreases.
b. The energy of the molecules in the computer increases.
c. The cold energy of the molecules in the computer increases.
d. The computer loses heat molecules.
