What is a conductor?
What is an insulator?
any material that stops energy (electric current) from flowing
What does flow mean?
What is a circuit?
the pathway through which electrical current flows; can be connected by wires, batteries, switches, and lightbulbs
What is an electrical current?
a flow of electricity through a conductor
To show work an object has to
move
True or false: For a circuit to work, there must be an incomplete path with an open switch.
FALSE: There must be a complete path that must have a closed switch.
Current flows through what material?
a. plastic
b. air
c. metal
metal
What is a series circuit?
A circuit in which the current flows through only one pathway
Which of the following is NOT THE BEST example of mechanical energy?
A. lawnmower
B. scissors
C. hammer
D. guitar
D. guitar
Guitar produces sound energy. It's purpose is to make noise and air vibrations we can hear.
Which of the following is an example of thermal energy?
A. flashlight
B. campfire
C. shouting
D. drums
campfire
Which shows light energy AND electrical energy?
A. lamp turned on
B. sunlight
C. riding a bicycle
D. campfire
A. Lamp
Which of the following is an example of work?
A. hitting a volleyball
B. hitting a wall
C. standing
D. sitting
A. hitting a volleyball
You are adding force to the volleyball which will make it move.
A series circuit with a light and a bell is missing a battery (energy source) will this circuit work ?
No-there needs to be an energy source to allow complete path for electrons to flow.
When a light bulb is on, does that mean the circuit is open or closed?
Closed