WorksheetsEnergy
Total questions: 50
Worksheet time: 4hrs 10mins
What is the ability to cause change called?
Power
Energy
Force
Work
What is the formula for Kinetic Energy (KE)?
KE = mv
KE = 21mv2
KE=m2v
KE = 21 m^2v^2
In the formula KE=21mv2 , what does 'm' stand for?
mass
momentum
meter
motion
Fill in the blank: In the formula KE=21mv2 , 'v' stands for ______.
velocity.
volume.
vector.
viscosity.
A jogger with a mass of 60 kg is moving at a speed of 3.0 m/s. What is the jogger’s kinetic energy?
270 J
180 J
90 J
540 J
A baseball with a mass of 0.15 kg is moving at a speed of 40.0 m/s. What is the baseball’s kinetic energy?
120 J
150 J
180 J
240 J
The formula 'PE = ham' represents what in physics?
Potential Energy = height x acceleration x mass
Potential Energy = half x acceleration x mass
Potential Energy = height x area x mass
Potential Energy = height x acceleration x momentum
Fill in the blank: Gravitational potential energy is a type of ________ energy.
potential
kinetic
thermal
electrical
Which of the following is an example of Elastic Potential Energy?
A) Bow and arrow
B) Solar panel
C) Wind turbine
D) Battery
Fill in the blank: Elastic Potential Energy is the energy stored in objects being ______ or stretched.
compressed
bent
twisted
rotated
Fill in the blank: A battery is an example of _______ potential energy.
chemical
electrical
mechanical
thermal
In the formula 'PE = ham', what does 'h' stand for?
h stands for the height in the formula for potential energy.
h stands for the heat in the formula for potential energy.
h stands for the hydrogen in the formula for potential energy.
h stands for the horsepower in the formula for potential energy.
In the formula 'PE = ham', what does 'a' represent?
a represents acceleration in the formula.
a represents a constant in the formula.
a represents an operator in the formula.
a represents a function in the formula.
In the formula 'PE = ham', what does 'm' signify?
m signifies mass in the formula for potential energy.
m signifies momentum in the formula for potential energy.
m signifies meter in the formula for potential energy.
m signifies minute in the formula for potential energy.
How much gravitational potential energy does a 5 kg rock have if it is sitting on the edge of a cliff that is 10 m high and an acceleration of 9.81 ?
50 J
100 J
490 J
980 J
A Viking ship roller coaster at the fair has a mass of 36,000 kg. If at its peak it reaches a height of 20 m off the ground, how much gravitational potential energy does it have? Acceleration = 9.8.
7,056,000 J
6,000,000 J
7,000,000 J
7,500,000 J
A suitcase weighing 120 N sits on a counter 1.8 m high in the airport. How much energy does it have?
PE = 216 J
PE = 200 J
PE = 180 J
PE = 150 J
What does the Law of Conservation of Energy state?
A) Energy can be created and destroyed.
B) Energy cannot be created or destroyed.
C) Energy can only be created.
D) Energy can only be destroyed.
What is radiant energy also known as?
Heat energy
Solar energy
Kinetic energy
Chemical energy
Thermal energy is used to ______ objects.
heat
cool
freeze
illuminate
What is Electrical energy used for?
To power electrical devices
To make noise
To release energy from the nucleus of an atom
Sound energy is used most often for _______.
communication
heating
lighting
transportation
What type of energy ( Cond, Conv. or Rad. ) does not need a substance to travel on?
Fill in the blank: Light is the most common example of _______ energy.
Radiation
Kinetic
Thermal
Chemical
What type of energy conversion is shown in the image with fireworks?
A) Chemical to light/thermal/sound
B) Solar to Electrical
C) Electrical to Light
What type of energy conversion is shown in the image with solar panels?
A) Chemical to light/thermal/sound
B) Solar to Electrical
C) Electrical to Light
Fill in the blank: Electrical energy is converted to _______ in the image with the light bulb.
Light.
Sound.
Heat.
Mechanical energy.
What type of energy conversion is involved in photosynthesis?
Solar to Chemical
Chemical to Solar
Solar to Electrical
Fill in the blank: Playing a guitar involves converting ______ energy to sound energy.
Kinetic
Potential
Thermal
Electrical
In a falling object, GPE converts to ______ as the object falls.
KE
PE
TE
ME
According to the Law of Conservation of Energy, mechanical energy remains ______ in a system.
constant
variable
increasing
decreasing
What is thermal energy?
The sum of the total energy of the particles in an object.
The average kinetic energy of particles in an object.
The energy stored in chemical bonds.
The energy due to an object's position.
Thermal energy increases as _____ increases.
mass
velocity
volume
pressure
Thermal energy increases as ______ increases.
temperature
pressure
volume
velocity
What is temperature?
A) A measure of the total energy of the particles in an object.
B) A measure of the average kinetic energy of particles in an object.
C) A measure of the potential energy in an object.
D) A measure of the chemical energy in an object.
What is heat?
The transfer of energy from one object to another
The storage of energy in an object
The reflection of energy from a surface
Heat always flows from ______ energy to ______ energy objects.
(a)
What is the unit of heat?
Watts
Joules
Calories
Volts
What happens when you feel cold according to the concept of thermal energy transfer?
You are gaining heat
You are losing heat
There is no change in heat
You are gaining cold
Fill in the blank: When heat flows into an object, the change in energy is ______.
positive (feels warm)
negative (feels cold)
neutral (no change)
variable (depends on conditions)
Fill in the blank: When heat flows out of an object, the change in energy is ______.
negative (feels cool)
positive (feels warm)
zero (no change)
undefined
What is the method of energy transfer by direct contact called?
Radiation
Convection
Conduction
Fill in the blank: Solids are best conductors of heat because particles are so close together, so energy moves _______.
easily
slowly
randomly
with difficulty
Convection is a process of thermal energy transfer that involves:
the movement of fluid due to temperature differences.
the emission of energy as electromagnetic waves.
the transfer of energy through direct contact of particles.
the conversion of energy from one form to another.
In convection, energy is transferred in fluid by the ______ of heated particles.
movement
evaporation
condensation
radiation
What is radiation in the context of thermal energy transfer?
Energy transfer by conduction
Energy transfer by convection
Energy transfer by electromagnetic waves
Energy transfer by sound waves
Radiation does not need a ______ to travel on.
medium
vehicle
conductor
pathway
Which of the following is an example of radiation?
Microwave
Conduction
Convection
Metal Bowls
What are conductors?
A) Materials that do not allow energy to pass easily
B) Materials that allow energy to pass easily
C) Materials that block energy completely
Fill in the blank: Insulators are materials where energy does not pass easily. Examples include air, wood, Styrofoam, and ____.
plastic
metal
glass
water
