Big Idea 5 Review Game Question Preview (ID: 54377)


Energy Transformations. TEACHERS: click here for quick copy question ID numbers.

The filaments in a toaster acts like a resistor and changes some of the electrical energy into __?__.
a) heat
b) motion
c) sound
d) light

What does electric current change into after it passes through an LED?
a) electrons
b) segments
c) heat
d) photons

Which machine does NOT use an electromagnet?
a) LED
b) electric motor
c) hearing aid
d) electric car

In a hearing aid, electrical energy is changed into __?__.
a) heat waves
b) light energy
c) sound waves
d) mechanical energy

An electric motor changes electrical energy into __?__ in order to make the car move.
a) heat energy
b) mechanical energy
c) light energy
d) sound energy

The source of electricity for an electric car is a __?__.
a) circuit
b) resistor
c) battery
d) LED

to send out energy in waves or rays
a) photon
b) radiate
c) resistor
d) speaker

a device that converts electrical energy into light
a) electromagnet
b) electron
c) filament
d) LED

a path along which electric current flows
a) circuit
b) conductor
c) electric motor
d) electromagnet

a tiny unit of light energy
a) microphone
b) photon
c) radiate
d) resistor

waves of energy created by vibration
a) radiate
b) resistor
c) sound waves
d) speaker

a device that converts sound waves into electric current
a) microphone
b) photon
c) radiate
d) resistor

a device that converts electric current into sound waves
a) radiate
b) resistor
c) sound waves
d) speaker

a magnet created by electricity flowing through a wire coiled around an iron core
a) electric motor
b) electromagnent
c) electron
d) filaments

a device that changes electrical energy into mechanical energy
a) circuit
b) conductor
c) electric current
d) electric motor

the energy of motion
a) thermal energy
b) light energy
c) mechanical energy
d) sound energy

a force that attracts or pushes away other magnets
a) LED
b) magnetic force
c) mechanical energy
d) microphone

the flow of electricty
a) conductor
b) electric current
c) electron
d) photon

something that limits the flow of electric current
a) conductor
b) switch
c) circuit
d) resistor

part of a circuit that starts or stops the flow of electric current
a) resistor
b) switch
c) conductor
d) filament

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