Lightbulb Circuits
What are the parts of the light bulbs that transfer electricity and also called contact points?
The bump at the base of the metal part at the bottom and the side of the metal part at the bottom.
What are the two things that are produced in a working motor circuit system?
Sound and motion
What would you call an object like a plastic spoon that does not let current flow?
An insulator
What are the two materials used to make the temporary magnet?
A wire and a steel rivet
What happens when one ball is released from a higher starting point than the second ball?
It goes faster
What happens when you touch the wire to the glass part of the light bulb?
Nothing.
What is the component of the system that allows you to control the flow of electricity by turning the circuit on and off?
A switch
What is the material that conductors are made out of?
Metal
How did we increase the magnetism in the electromagnet or temporary magnet?
We wrapped the wire around the rivet more times.
What is the force that attracts an object toward the center of the earth?
Gravity
What is the source of electricity that we used to light up the bulb?
A D-Cell battery
What do you call the type of circuit that allows electric current to flow and energy to transfer?
A closed circuit
What is the energy source needed to power a solar cell?
The sun or solar energy
Why were we were not able to pick up plastic pieces but we were able to pick up the washers with the temporary magnet?
The washers are made of metal.
What are the two forces acting on the balls on the ramp?
gravity (pulling the balls downward) and the ramp (pushing up on the balls)
What were used in our circuits in order to transfer electric current from the D-cell to the light bulb?
The wires
What do you call the type of circuit that prevents or blocks the flow of energy?
An open circuit
During the solar cell investigation, why would the motor stop moving and making sound?
because there was no sunlight hitting the solar cell
In addition to picking up washers, what is another way to tell that electricity was being transferred in the closed circuit?
heat
How would you describe the type of motion shown by the balls on the ramp?
They were rolling
In a successful light bulb circuit, what is the evidence that energy was transferred in the system?
Light
What would you would call a steel screw, a rivet, a wire or any material that transfers electricity allowing the current to flow?
A conductor
What was happening when the motor slowed down its rotation?
This was because the sunlight was partially blocked.
What is the energy source used to create the electromagnet?
The D-cell battery
When colliding with corks, what did the balls with a larger mass had more of?
power