WorksheetsLaw of Conservation of Energy
Total questions: 9
Worksheet time: 5mins
Name
Class
Date
1.
Which materials could be used to create an electric circuit?
a)
copper wire, wooden rod, and string
b)
string, light-bulb, and battery
c)
copper wire, light-bulb, and battery
d)
rubber tube, light-bulb,and battery
2.
Explain the energy transformation is a simple light electric circuit?
a)
chemical- electrical- radiant
b)
electrical- radiant- chemical
c)
Thermal- radiant- chemical
d)
radiant- chemical- electrical
3.
When electrical energy flows through a light-bulb it creates ___
a)
heat energy only
b)
heat and radiant energy
c)
radiant energy only
d)
motion energy
4.
When you plug in an iron, electrical energy is transformed into ______ energy
a)
sound
b)
mechanical
c)
thermal (heat)
d)
radiant
5.
When a construction worker hits a hammer into plank of wood, the mechanical energy from the hit becomes _____ energy
a)
radiant
b)
electical
c)
heat and sound
d)
chemical
6.
At what point on the coaster would the potential energy be the greatest?
a)
1
b)
3
c)
5
d)
7
7.
What which point on the coaster would the kinetic energy be the greatest?
a)
3
b)
2
c)
5
d)
4
8.
What would happen if the electrical wire was cut?
a)
nothing, the light would still get energy
b)
the light would go out because the circuit is incomplete
c)
the battery will die
d)
the battery will explode
9.
After using a flashlight on an overnight sleeping trip the flashlight stops working. Why?
a)
You forgot to charge the flashlight.
b)
The electrical circuit in the flashlight was broken
c)
The bulb received too much energy from the battery
d)
All of the energy from the battery was transformed into light and heat
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