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- 1. Multiple Choice
What is the most correct definition of energy?
the ability to make things electrically change
the ability to push or pull
the ability to turn something on
the ability to make things move or change
- 2. Multiple Choice
The image shows a string of lights. When the lights are on, electricity travels in ---
a sound wave
a light ray
an incomplete ciruit
a complete circuit
- 3. Multiple Choice
Which statement is not an example of the bicycle using mechanical energy (motion or position)?
The wheels turn when the bicycle moves
the pedals and chain help turn the wheels
the reflector allows the bicycle to be seen at night
the front wheel guides the bicycle as it moves
- 4. Multiple Choice
Look at the image. How many light bulbs will remain lit if the wire is cut at point C?
0
1
2
3
- 5. Multiple Choice
Which statement best describes mechanical energy?
energy resulting from the flow of electrical charge
the energy of an object due to its motion or position
makes light visible to the human eye
none of the above
- 6. Multiple Choice
Look at the image. Which change needs to be made in order for the light bulb to turn on?
adding a switch
adding more wire
taking away wire
turning one battery so that its positive end connects the other battery's negative end
- 7. Multiple Choice
Ayodeji created an electrical circuit where there is a battery and three light bulbs that are all connected. What would happen to the circuit if one of the lights burn out?
the flow will continue but the one burnt out light bulb will not shine
only the burnt out light will not shine
none of the lights will shine
a short circuit will occur
- 8. Multiple Choice
Which best describes input?
an input is a the energy that comes out of a device
the energy put into a device
plugging in an object
all of the above
- 9. Multiple Choice
Which best describes an output?
Output is the amount of energy that comes out of a device
Output is the amount of energy put into a device
Unplugging something from a wall
all of the above
- 10. Multiple Choice
What is an engineer?
engineers defend people in court
engineers perform surgery on people who need it
engineers and teachers are the same thing
engineers use science knowledge to design solutions to problems
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