Energy Transformations - Part 1 Question Preview (ID: 37306)


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

Explain the energy transformation that occurs when water in a river dam turns turbines making electricity and lights a house
a) mechanical to electrical to light
b) mechanical to chemical to light
c) electrical to mechanical to light
d)

Which represents the energy transformation of chemical to light?
a) a burning candle
b) an electric toaster
c) a lamp plugged into a socket
d)

Which shows light energy transforming into chemical energy?
a) a battery turning on a fan
b) a broken glow stick
c) a plant making its own food in the sunlight
d)

Which energy transformation occurs when a flashlight shines?
a) chemical to electrical to chemical
b) chemical to electrical to light
c) thermal to mechanical to electrical
d)

Choose an example of the following energy transformation electrical to mechanical to sound
a) a digital bathroom scale
b) a deer eating grass
c) a pencil sharpener plugged into an outlet
d)

Food chains and food webs are examples of energy transformations
a) True
b) False
c)
d)

Chemical energy is -
a) the energy of electric currents
b) the energy of electromagnetic waves
c) energy stored in bonds between atoms
d)

The total energy in our universe -
a) will not change, but can transform to the other types
b) changes and expands over time
c) only changes forms once
d)

Electrical energy is -
a) the energy form originated by the electromagnetic waves or fields
b) the energy type due to the movement of electrons
c) the energy form which is present in vibrations of air
d)

Which shows chemical to electrical to light energy?
a) a candle glows in the dark
b) a battery makes a flashlight shine
c) a match lights up a dark cave
d)

When a lamp is plugged into a wall socket and works it represents -
a) chemical to light
b) chemical to electrical
c) electrical to light
d)

Thermal energy is described as -
a) the transfer of heat
b) electrons moving in a circuit
c) air vibrations moving
d)

If a boy eats a meal and then runs a mile. What transfer of energy took place?
a) chemical to mechanical
b) chemical to electrical
c) solar to chemical
d)

What types of energy do you observe while watching television?
a) mechanical and electrical
b) light, thermal and sound
c) sound and chemical
d)

If a battery powers a circuit to turn a light bulb on, what type of energy comes from the battery?
a) chemical
b) electrical
c) light
d)

Which device converts electrical energy into sound energy?
a) flashlight
b) ipod
c) drum
d)

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