Transformation
Alonzo has a battery operated toy car. When he turns it on it moves across the floor. Which energy transformation happens in the toy car?
Stored energy to electrical energy to motion energy
Roberto makes an electric circuit that has a switch as one of its parts. He makes a closed circuit. What would happen to the light bulb if Roberto changed the switch from closed to open?
It would stop glowing.
A power generating station uses coal to produce electrical power. Which kind of energy transformation occurs?
OR
Heat into electrical energy.
Which of these shows energy?
A. A car that has tires
B. A car that begins to move
c. A car parked in a garage
D. a picture of a new care
B
electrical energy into heat and energy of motion
If there is not a complete circuit between a battery and a lamp, what will be the result?
The lamp will turn off, but it will not turn on
Identify a source of electrical energy in your home. How does this electrical source transform electrical energy to a different type of energy?
Answers will vary
Which of these is a form of energy?
a. heat
b. oven
c. electricity
d. light
e. lamp
f. microwave oven
g. sound
h. motion
i. popcorn maker
j. chemical
a. heat
c. electricity
d. light
g. sound
h. motion
j. chemical
Electrical to light and sound energy
Describe an open circuit
A circuit that stops. It does not make a complete loop
What would happen at an electricity generating station if the turbines did not spin?
motion energy would not generate electric energy
Put these steps in order
A. Electric energy transfers through the cord.
B. Electric energy transforms to light energy
C. You turn on a light switch
D. Electric energy transfers into the lamp.
C, A, D, B
which of these devices does not change electrical energy into motion energy?
A. DVD player
B. clock
C. clothes dryer
D. Electric stove
D
Describe a closed circuit
A circuit that makes a full loop
What type of transformation occurs when a car engine is turned on?
Electric to sound, heat, motion
Which form of energy can be observed in all of these: washing machine, radio, printer?
Sound
What type of energy transformation occurs when a light switch is turned on?
Electric to light
What type of circuit is described when: a battery powers a light bulb, that turns on and off
Closed
What type of transformation occurs when a hair dryer is turned on?
Electric to motion, heat
A cell phone battery will last longest if the phone is mostly used to...
Text or call