WorksheetsHeat, Electricity & Magnetism
Total questions: 30
Worksheet time: 15mins
A generator converts ___________ energy into __________energy
heat;mechanical
electrical;chemical
chemical; electrical
mechanical;electrical
Letter C represents the _____________
transformer
switch
conductor
source
Letter D represents the _____________
transformer
switch
conductor
source
Letter A represents the _____________
transformer
switch
conductor
source
Letter B represents the _____________
transformer
switch
conductor
source
What is the transformation in the circuit?
electrical --> light --> chemical
light --> chemical -->heat
chemical --> electrical --> light
chemical --> light --> electrical
If you increase the number of coils of wire in an electromagnet then you will __________________________.
increase the size of the device
increase the magnetism.
decrease the size of the device
decrease the magnetism.
A simple electric motor converts ___________ energy into __________energy
heat; mechanical
electrical; mechanical
chemical; electrical
mechanical; electrical
A ______________ is a device that contains an electromagnet that rotates between the poles of a magnet.
electric motor
generator
turbine
hygrometer
A _____________is formed when a wire wrapped around an iron core generates a magnetic field as an electric current passes through it.
generator
transformer
electric motor
electromagnet
What is the energy transformation in the fan?
mechanical -> electrical
electrical --> mechanical
thermal --> electrical
electrical --> chemical
When the current stops flowing in an electromagnet, the __________________
magnetism continues
magnetism increases
magnetism stops
magnetism increases then decreases
A turbine is turned by __________________.
many strong men
large solar powered machines
electromagnets
wind, water or steam
When a turbine turn, _____________energy turns the generator which produces _______________.
electrical; mechanical energy
mechanical; electricity
solar; mechanical energy
thermal energy; electricity
Boiling water is an example of heat transfer by ___________
convection
conduction
radiation
evaporation
When you touch a hot pan, the pan ________________heat energy.
absorbs
conducts
insulates
dissipates
Butter melting on a warm surface is an example of heat transfer through _______________
convection
conduction
radiation
condensation
Heat that is given off by a fire is an example of heat transfer through ______________
convection
conducation
radiation
insulation
Feathers, fur, overcoats, and whale blubber are all _______________
conductors
radiators
evaporators
insulators
_______________________ is responsible for the uneven heating of the air in the atmosphere.
convection
conduction
radiation
evaporation
A compass needle moving when electricity flows through the wire occurs because ________________________
all wire causes a compass needle to move.
there is plastic coating on the wire.
electrical wires have north and south poles.
electric currents produce magnetic fields.
The things that are changed in the experiment are the _______________________.
independent variables
dependent variables
control variables
hypothesis
The data that is collected and recorded in an experiment is the _______________________.
independent variables
dependent variables
control variables
hypothesis
The dependent variable is graphed on the ________
X-axis
Y-axis
it does not matter which axis you use
who graphs data anyway?
The independent variable is graphed on the ________
X-axis
Y-axis
it does not matter which axis you use
who graphs data anyway?
Which fast moving ribbon of air is likely to bring very cold air into South Carolina?
the subtropical jet stream
the polar jet stream
the gulf stream
the trade winds
The weather is rainy and stormy. What kind of system is in the area?
High pressure system
low pressure system
cold front system
warm front system
When cumulus clouds become tall and dark they are likely to bring ______________.
sunny weather
thunderstorms
hurricanes
no wind
What force causes precipitation to fall?
thermal energy
solar energy
gravity
air force
Equal lines of air pressure on a weather map are called _________________.
isotherms
isolights
isobars
global winds
