Conductors & Insulators
Circuits
Static Electricity
Energy Transformations
Magnets
100
Materials which allow electricity to easily flow through them are known as __________________________.
Conductors
100
A(open/closed) ______ circuit allows electricity to flow within the circuit.
Closed
100
True or False?
Static electricity is the transfer of negatively charged particles between materials.
True
100
Which type of energy transformation occurs in a fan?
electrical energy to radiant energy
electrical energy to thermal energy
electrical energy to mechanical energy
3. electrical energy to mechanical energy
100
When a current flows through a wire, what does it create? hint: _____ field
Magnetic Field
200
Materials that do not allow electricity to flow easily through them are known as __________________________.
Insulators
200
If there is an ________ in the circuit, electricity will not flow.
Opening
200
Which of the following is an example of static electricity?
The wind blowing a flag on a flagpole.
Clothes sticking together when coming out of the dryer.
Cooking spaghetti on the stove in a pot of boiling water.
2. Clothes sticking together when coming out of the dryer.
200
Which type of energy transformation occurs in a light bulb?
electrical energy to radiant energy
electrical energy to thermal energy
electrical energy to mechanical energy
1. electrical energy to radiant energy
200
Would the circuit below produce a magnetic field?
Example Response: No, it is an open circuit.
300
Is the following an example of a conductor or an insulator? wooden spoon
Insulator
300
Is the following an example of an open or closed circuit?
Open Circuit
300
Which of the following is an example of static electricity?
Lightning
Thunder
Rain
Wind
1. Lightning
300
Which type of energy transformation occurs in a toaster oven?
electrical energy to radiant energy
electrical energy to thermal energy
electrical energy to mechanical energy
2. electrical energy to thermal energy
300
What is the following an example of?
An Electromagnet
400
Is the following an example of a conductor or an insulator? copper penny
Conductor
400
Is the following an example of an open or closed circuit?
Closed Circuit
400
What is a common way to generate static electricity?
Example Response: Rubbing two things together.
400
On Sundays, Krista vacuums the floors in her house.
What type of energy transformation occurs in the vacuum cleaner?
Electrical Energy to Mechanical Energy
400
Which of the following items would be used to create an electromagnet? Select all that apply.
wire
battery
string
nail
1. wire, 2. battery, and 4. nail
500
The electrician puts on rubber gloves before touching any wires.
Is the electrician using the gloves as a conductor or an insulator?
Insulator
500
Mario created this circuit during science class. What does Mario need to do to allow electricity to flow?
Example Response: Mario needs to connect the wire to the bulb, closing the circuit.
500
Raven learned about static electricity in science class. When she got home, she wanted to show her parents how to create static electricity.
Which of the following could Raven do to show static electricity? Select all that apply.
Getting shocked when touching a doorknob.
Riding her bicycle and using the handlebars to steer.
Rubbing a balloon on her head to have her hair stick up.
Shuffling across a carpet and then getting shocked when touching a light switch.
1, 3, and 4
500
Flora is using a blow dryer to dry her hair after she gets out of the shower.
What type of energy transformation occurs in the hair dryer?
Electrical Energy to Thermal Energy
500
George created an electromagnet in science lab. He wants to increase the strength of his electromagnet.
Which of the following can he do to strengthen his electromagnet? Select all that apply.
increase the number of coils
add plastic to the core
increase the current
decrease the number of coils
1. increase the number of coils and 3. increase the current