electricity
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| What is the unit of measure for current? | Amperes (or Amps)
🗑
|
||||
| What is the unit of measure for voltage? | Volts
🗑
|
||||
| What is the unit of measure for resistance? | Ohms
🗑
|
||||
| Give an example of a good conductor. | Metal (copper, aluminum, gold, silver)
🗑
|
||||
| Give an example of a good insulator. | Plastic, rubber, wood, air, glass
🗑
|
||||
| What function does a switch typically perform? | Opens or closes a circuit
🗑
|
||||
| What is a series circuit? | An electric circuit with a SINGLE path.
🗑
|
||||
| What is a parallel circuit? | An electric circuit with MULTIPLE paths.
🗑
|
||||
| What function does a "Battery Cell" perform? | It provides energy for an electrical circuit.
🗑
|
||||
| What function does a "resistor" perform? | It slows down the flow of electrons in a circuit.
🗑
|
||||
| What function does a "diode" perform? | It allows current to only flow in one direction.
🗑
|
||||
| What function does a "Light Emitting Diode" perform? | It allows current to only flow in one direction, and lights up in the correct direction.
🗑
|
||||
| What function does a "Variable resistor" perform? | A variable resistor is a potentiometer with only two connecting wires instead of three. It allows the resistance to change.
🗑
|
||||
| What does LED stand for? | Light emitting diode
🗑
|
||||
| What is an electical circuit? | A loop of conducting material that allows electrons to flow.
🗑
|
||||
| What is an open circuit? | A circuit is open if the electron flow is stopped. For example, by a switch.
🗑
|
||||
| What is a closed circuit? | A circuit is closed if the electrons flow.
🗑
|
||||
| What is a short circuit? | A circuit where current does not flow through any components.
🗑
|
||||
| What is voltage? | Measure of how much "potential energy" exists to move electrons from one point to another in a circuit.
🗑
|
||||
| What is current? | Electrons flowing between two points.
🗑
|
||||
| What is resistance? | A slowing of the flow of electrons.
🗑
|
||||
| If the voltage is constant and the resistance increases, what happens to the current? | The current decreases. (I = V/R)
🗑
|
||||
| If the voltage is constant and the current increases, what happens to the resistance? | The resistance decreases. (R = V/I)
🗑
|
||||
| If the current is constant and the resistance increases, what happens to the voltage? | The voltage increases. (V = I*R)
🗑
|
||||
| If the current is constant and the voltage increases, what happens to the resistance? | The resistance increases. (R = V/I)
🗑
|
||||
| If the resistance is constant and the voltage increases, what happens to the current? | The current increases. (I = V/R)
🗑
|
||||
| If the resistance is constant and the current increases, what happens to the voltage? | The voltage increases. (V = I*R)
🗑
|
||||
| When resistors are connected in PARALLEL, will the total resistance be LESS THAN or GREATER THAN any of the individual resistors? | LESS THAN.
🗑
|
||||
| When resistors are connected in SERIES, will the total resistance be LESS THAN or GREATER THAN any of the individual resistors? | GREATER THAN.
🗑
|
||||
| If two lamps are connected in SERIES, what will happen to the brightness of each lamp compared to only having one lamp? | The lamps will be dimmer (less bright).
🗑
|
||||
| If two lamps are connected in PARALLEL, what will happen to the brightness of each lamp compared to only having one lamp? | The lamps will be the same brightness.
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Created by:
simonpatel
Popular Physical Science sets