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WorksheetsEnergy Transformations and Review
Total questions: 80
Worksheet time: 46mins
How does a wind turbine change forms of energy?
Mechanical to electrical
Mechanical to light
Electrical to mechanical
There is no energy transformation
A solar-powered calculator applies the photoelectric effect to transform __________energy into the __________energy needed to operate.
sound; light
light; electrical
nuclear; light
chemical; electrical
What energy transformation occurs as bioluminescent algae glow in the ocean?
Radiant --> Chemical
Thermal --> Radiant
Chemical --> Radiant
Thermal --> Chemical
"Energy can be transformed from one form into another or transformed from one region or another, but energy cannot be created or destroyed."
Which law is this?
Law of Conservation of Mass
Newton's Second Law
Law of Conservation of Energy
Law of Conservation of Momentum
A swing has potential energy if
it is sitting still
moving at a constant speed
accelerating at a fast pace
using multiple units of kinetic energy
What energy transformations take place when a battery operated radio is in use?
electrical to chemical to sound
thermal to nuclear to electrical
chemical to electrical to sound
chemical to sound to thermal
According to the Law of Conservation of Energy, energy cannot be ______ or _______
destroyed, determined
created, nuclear
destroyed, remade
created,destroyed
What type of energy is represented in the picture?
potential
chemical
thermal
mechanical
Turning on a lamp is an example of energy transformation from electrical to 3 forms of energy. Which of these is NOT created by the lamp?
thermal
electrical
chemical
electromagentic
Which of the following transfers occurs when food is digested?
Chemical to mechanical
Mechanical to thermal
Mechanical to solar
Chemical to thermal
Plants turn_______ energy into _______ energy for food.
thermal, mechanical
radiant, chemical
electromagnetic, light
potential, kinetic
Gravitational potential energy depends on the______ and ______ of the object.
force, energy
speed, height
mass, speed
height, mass
The roller coaster cart has the most gravitational potential energy at position
Z
Y
W
X
Electrical energy in motion is what type of energy?
potential electrical energy
kinetic electromagnetic energy
kinetic electrical energy
potential electromagnetic energy
Electromagnetic energy is also referred as three other types of energy EXCEPT-
radiant
solar
electrical
light
On a rollercoaster, where is maximum kinetic energy?
At the top of the big hill
At the bottom of a big hill
On the way up a big hill
At the top of the hill ,where the car stops for a brief moment
Which of the following energy transformations occur when a lamp that is plugged in the wall outlet is working properly?
electrical to light
chemical to light
chemical to electrical
electrical to thermal
Which of the following device transforms electrical energy into mechanical energy?
a fan
a manually operated pencil sharpener
an apple ipod
a apple iPhone X
What type of energy transformation in an electric hot plate is plugged in?
electrical to light
mechanical to electrical to light
thermal to mechanical to light
electrical to thermal
Energy stored in the nucleus of an atom. Also known as atomic energy is
electrical energy
thermal energy
element energy
nuclear energy
A hairdryer converts-
chemical to electrical
electrical to thermal
electrical to solar
thermal to mechanical to light
What type of energy transformation occurs when a hawk eats a mouse then uses the energy from the mouse to fly?
mechanical to potential
mechanical to chemical to thermal
chemical to mechanical
chemical to thermal to kinetic
What type of energy transformation occurs, when a hawk eats a mouse and then uses the energy from the mouse to fly?
mechanical energy to chemical energy
thermal energy to mechanical energy
chemical energy to mechanical energy
mechanical energy to thermal energy
What energy transformation occurs when a crock pot is plugged into an outlet and then the control knob is turned "on"?
thermal to electrical
mechanical to thermal
electrical to thermal
electrical to sound
What type of energy is electrons flowing through a wire?
Electrical energy
Chemical energy
Kinetic energy
Mechanical energy
What type of energy is stored in batteries or food?
Potential energy
Thermal energy
Chemical energy
Mechanical energy
Energy that transfers heat is?
Thermal energy
Potential energy
Mechanical energy
Kinetic energy
What sort of energy transformation is this?
Chemical to Thermal
Thermal to chemical
Kinetic to potential
Open to closed
What is the energy transformation that occurs in an electric pencil sharpener?
mechanical energy to electrical energy
electrical energy to mechanical energy
radiant energy to sound energy
chemical energy to mechanical energy
When energy is released, it disappears.
True
False
The moon orbiting the Earth at a constant speed.
Balanced Force
Unbalanced Force
A lamp sitting on a table.
Balanced Force
Unbalanced Force
A car accelerating around a mountain curve.
Balanced Force
Unbalanced Force
Two ice skaters moving in a straight line at a constant speed.
Balanced Force
Unbalanced Force
A skier skiing through flags in a race down the mountain.
Balanced Force
Unbalanced Force
A book sitting on a shelf.
Balanced Force
Unbalanced Force
A gymnast on a balance beam doing a back flip.
Balanced Force
Unbalanced Force
Cars in a NASCAR race speeding around the track.
Balanced Force
Unbalanced Force
A soccer ball sitting on the ground motionless.
Balanced Force
Unbalanced Force
A rocket lifting off the launch pad.
Balanced Force
Unbalanced Force
What is a force?
A push only
A pull only
A push and a pull
A motion
How will this object move?
It will not move
It will move in both directions
It will move to the right
It will move to the left
How will this object move?
It will not move
It will move in both directions
It will move to the right
It will move to the left
Shadell pushes a box 35 N to the right. Nazai pushes the box 25 N in the same direction. What is the net force?
(a)
What is net force?
(a)
Balanced or Unbalanced
(a)
What is the net force?
(a)
Which of the answer choices is not a characteristic of a balanced force?
no change in motion
moving at a constant speed
causes a change in motion
net force of zero
If an object is not moving the forces acting upon it are (a)
A (a) is a push or a pull on an object.
Potential energy depends on the ________ and ________ of the object.
Height (position)
Mass
Speed
Friction
Which point has the most potential energy?
G
F
B
A
The faster an object moves, the ________ kinetic energy it has.
more
less
