WorksheetsEnergy Transfer and Electric Currents
Total questions: 26
Worksheet time: 39mins
Which of the following explains what happens when the light bulb lights up? When the switch is closed---
energy moves through the wires and is changed into light energy in the bulb
the bulb reflects sunlight until it shines brightly and makes heat energy.
the physical properties of the battery are changed by the chemicals inside it
the wires that connect the parts stop heat energy from flowing
Students are using a hand-held generator to produce light energy. The light only lights up when the handle is turned.
What can the students do to change the amount of energy that enters the bulb?
Place a filter over the light bulb
Turn the handle at different speeds
Change the handle to a smaller one
Use a different bulb
The illustration below shows a lamp that is plugged into an electrical outlet.
When the lamp is turned on and the bulb is lit, it shows that electrical energy–
moves in straight lines
is produced by moving water
can be changed into light energy
is the fastest moving form of energy
Which of the following is evidence that electrical energy can be moved from place to place? Power plants that make electricity–
cost quite a bit of money to build and run.
are often very far from the places that receive the electricity.
sometimes use moving water to make electricity.
need people and materials in order to make electricity.
Which of the following provides evidence that light energy can move from place to place?
A flashlight turns on when the switch is moved.
A light bulb gets hot when it is left on for a while.
The deepest parts of the ocean are very dark.
very distant stars can be seen in the night sky.
current flows.
This is a complete circuit where everything is connected
insulator
conductor
closed circuit
open circuit
this can be transformed into heat, light, or mechanical energy.
magnetic field
magnet
electrical energy
electromagnet
Which word best matches the following definition:
The ability to do work
Copper
Energy
Parallel circuit
Energy can change forms, but it ____________goes away.
always
sometimes
NEVER
none of the above
Energy moves in different ways, such as through:
light
heat
sound
electricity
all of the above
___________is a kind of energy.
Structure
Electricity
Circuit
Path
Where does electricity in your home come from?
power plants
batteries
generators
all the above
that which is needed to do work
____________ is needed to perform many tasks.
energy
transfer
absorbed
motion
the transfer of energy from one subject or material to another OR one form of energy to another
energy transfer
light transfer
sound energy
electrical energy
energy that allows us to SEE
Sunshine is an example
light energy
sound energy
heat energy
electrical energy
energy that travels as waves through the air or water and vibrates the ear drum upon contact
light energy
sound energy
heat energy
electrical energy
energy that causes a change in temperature between materials
The sun can cause ______________ from one place to another.
heat transfer
electrical energy
light energy
energy resulting from the flow (movement) of charged particles
The electrical current causes ______________.
electrical energy
heat energy
light energy
the flow of electricity energy through a circuit
electric currents
solar currents
batteries
a source of electricity
We had to use a ____________ for the window Christmas lights.
battery
circuit
sound energy
heat transfer
True or false:
Electrical energy that flows through a circuit can be transferred into light energy, sound energy, mechanical energy, or heat energy
True
False
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