Energy Transformations
Circuits
Light
Earth, Sun, and Patterns
Vocabulary
100
Which energy transformation happens when a lamp is turned on and begins to glow?
What is electrical energy to light energy?
100
What are the role of wires in a circuit?
What is to carry electrical energy from one part of the circuit to another?
100
What interaction occurs when light bounces off a mirror?
What is reflection?
100
What is D
100
The movement of Earth spinning on its axis
What is rotation?
200
A blender uses electricity to spin blades. What is the main energy transformation?
What is electrical energy to mechanical energy?
200
If a switch is open, what happens to the flow of electrical energy?
What is it stops flowing?
200
Describe what is happening in picture A, B, and C.
What is
A - absorption
B - reflection
C - refraction
200
How long does it take Earth to complete one rotation?
What is 24 hours?
200
The interaction where light bends as it enters a new material
What is refraction?
300
A hair dryer blows warm air. Identify two energy transformations happening at the same time.
What are electrical to thermal energy and electrical to mechanical energy?
300
Which of these bulbs will light?
A. A and B only
B. C only
C. B only
D. A, B, and C
What is D
300
Why does light passing from air into water change direction?
What is because the light refracts as it moves between materials?
300
Why does the Sun appear to move across the sky even though it stays in one position?
What is because Earth is rotating on its axis?
300
Energy stored in a battery before it is used
What is chemical energy?
400
A student says a battery-powered fan shows chemical energy changing directly into mechanical energy.
Explain what is incorrect about this statement.
What is that chemical energy in the battery first changes into electrical energy before transforming into mechanical energy?
400
Why does closing a switch allow energy to transform into light or motion?
What is because closing the switch completes the circuit, allowing electrical energy to flow?
400
Why does a dark object get warm faster than a light-colored object in sunlight?
What is because dark objects absorb more light energy?
400
How does Earth’s rotation explain why different places experience daylight at different times?
What is because different locations rotate into and out of sunlight?
400
A closed path that allows electrical energy to flow
What is a complete circuit?
500
Baniel claims that using a remote control to turn on his TV is using electrical energy and that is it. Is Baniel correct or is he possibly omitting some source of energy?
Baniel is incorrect because remote controls use batteries and that is an example of Chemical Energy
500
A student builds a circuit with a battery, wires, a switch, and two bulbs.
When the switch is closed, only one bulb lights.
Explain two possible reasons why the second bulb does not light.
What is that the second bulb may not be included in the closed path, the bulb could be burned out, or the wiring may not complete the circuit to that bulb?
500
Microscopes and Telescopes use a series of lenses to enhance and image so that it can be studied. What is the purpose of these lenses?
A. To Reflect Light
B. To Absorb Light
C. To Transmit Light
D. To Refract Light
D.
500
Which image best represents the shadow cast
by the Sun at 6:00 P.M?
What is A
500
Use absorb, reflect, and refract correctly in one example involving sunlight and water.
What is: sunlight reflects off the surface, refracts as it enters the water, and is absorbed by objects below?