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WorksheetsUnit 3: Energy
Total questions: 60
Worksheet time: 56mins
What is the unit of measurement for energy?
Newton
Watt
Joule
Metres
What is the unit of measurement for Force?
Newton
Watt
Joule
Metres
What is work?
The product of force and distance
Force divided by distance
Measured in watts
The product of Force and time
What is the equation for work
W = FXd
W = F/t
W = P/T
W= J/P
How do you solve for force?
F= d/W
F= M/a
F= W/d
F= j/w
What is power?
How slow you are at lifting
Work X Time
Measured in Joules
The rate of doing work
What is the equation for power?
P = W X t
P= W/t
P = w/j
P = M X a
What is the unit for Power?
Newton
m/s
watt
joules
What is energy?
The battery percentage on your phone
The ability to do work
How quickly you do work
How many steps you take in a day
This term refers to a force being used to move an object.
Energy
Joules
Mass
Work
This type of energy is a measure of how fast the particles of an object are moving.
Sound energy
Thermal energy
Radiant energy
Thermal energy
In convection, the cooler portions of the fluid rise while the warmer portions sink towards the bottom
True
False
During a campout, Bob warms his hands by the campfire. This demonstrates ---
radiation
conduction
convection
condensation
The measure of the average kinetic energy of the particles in an object is
thermal equilibrium
potential energy
convection
temperature
By which process can thermal energy be transferred via electromagnetic waves, not requiring a medium to travel?
convection
conduction
radiation
thermal
The temperature of a glass of cold water will eventually
match the temperature of the surrounding environment
become warmer than the surrounding environment
always be colder than the surrounding environment
never change temperature
The amount of heat that is required to raise the temperature of 1 g of material by 1 degree is known as
specific heat
temperature
energetic force
radiant energy
Materials that do not move heat well
conductors
radiation
insulators
metal
In a substance at a low temperature, the particles have _______ kinetic energy and movement
equal
high
low
no
What type of thermal energy is being displayed in this picture?
convection
conduction
radiation
kinetic
What material is the best conductor of heat?
glass
metal
wood
styrofoam
What happens when you put ice in your drink to cool it down?
The ice transfers coldness to the warmer drink
Heat is transferred from ice to the drink
Heat is transferred from the drink to the ice
The ice cracks and releases cold air into the drink
convection
conduction
radiation
energy
A metal spoon placed in a cup of hot cocoa become hot. Which process transfers heat from the bowl of the spoon to the handle?
conduction
convection
evaporation
radiation
_____ is energy that is transferred between objects due to their temperature differences.
Specific heat
Heat
Force
Mass
In the formula, which quantity represents the specific heat?
c
m
Q
deltaT
The specific heat of copper is 0.385 J/g·°C. Which equation would you use to calculate the amount of heat needed to raise the temperature of 0.75 g of copper from 7°C to 29°C?
Q = 0.385 J/g·°C x (29°C – 7°C)
Q = 0.75 g x 0.385 J/g·°C x 29°C
Q = 0.75 g x 0.385 J/g·°C x 22°C
Q = 0.75 g x 0.385 J/g·°C x 7°C
7600 J of energy are added to a 1 kg block of brass that is at a temperature of 20°C. What temperature will it
be after the energy is added?
0 C
20 C
40 C
400 C
The picture showing the energy conversion
Electrical → light
is:
The picture showing the energy conversion
Electrical → light
is:
What is the energy conversion when you plug in a stereo and listen to music?
electrical to mechanical
chemical to heat
electrical to light
mechanical to sound
What is the energy conversion when you plug in a fan?
light to mechanical (motion)
electrical to heat
mechanical (motion) to light
electrical to mechanical (motion)
What is the energy conversion when water moves over a dam to power a city's energy grid?
electrical to light
mechanical (motion) to electrical
solar (light) to electrical
mechanical (motion) to light
Which of the following conversions is illustrated with a solar powered car?
radiant (light) to electrical
radiant (light) to mechanical (motion)
mechanical to radiant (light)
electrical to mechanical (motion)
What is the energy conversion when a wind turbine turns to provide energy to a power grid?
electrical to electrical
electrical to mechanical (motion)
mechanical (motion) to electrical
solar (light) to heat
An example of electrical energy transforming to thermal energy is
a fire burning.
using a toaster.
burning coal.
lighting a candle.
Energy of motion is also called ______________ energy.
Kinetic
Chemical
Thermal
Electrical
The object shown is responsible for which conversion
electrical → light only
chemical → heat only
chemical → heat & light
electrical → heat & light
The object shown is responsible for which conversion
electrical → light only
chemical → heat only
chemical → heat & light
electrical → heat & light
what is the law of conservation of energy
energy can be created but cannot be destroyed
energy cannot be created or destroyed, but it can be transformed
energy can be destroyed but not created
energy cannot be created destroyed or transformed
The energy conversion process in a neuclear powerplant is ---> ___________ > ___________ > __________ > electrical energy
Thermal energy > Nuclear energy > kinetic energy
Neuclear energy > thermal energy > kinetic energy
graviational potential energy > kinetic energy > thermal energy
neuclear energy > kinetic energy > thermal energy
The energy conversion in a flashlight is _____________ ->_____________-> light + thermal energy
chemical energy > electrical energy
electrical energy > chemical energy
Neuclear energy > chemical energy
gravitational potential energy > kinetic energy
what kind of energy conversion(s) happen in an electric stove?
electrical energy > thermal energy
nuclear energy > electrical energy > thermal energy
chemical energy > thermal energy
chemical energy > electrical energy > thermal energy
what type of energy conversion is happening when a person jumps out of a plane?
gravitational potential energy > kinetic energy
kinetic energy > gravitational potential energy
what is the energy conversion happening in a coal burning power plant?
Thermal energy > Chemical energy > kinetic energy > electrical energy
Chemical energy > kinetic energy > thermal energy > electrical energy
Thermal energy > kinetic energy > electrical energy
Chemical energy > thermal energy > kinetic energy > electrical energy
What kind of energy is in the food we eat?
nuclear energy
kinetic energy
potential energy
chemical energy
What type of energy is stored in a battery?
electrical
thermal
radiant
chemical
