Week 2: Material Detectives-Knowledge Check Series

Front

Which material works best as a conductor for your paper circuit? Options: Aluminum foil, Plastic, Wooden stick, None of these

Back

Aluminum foil

Front

Which material would be the best insulator? Options: Aluminum foil, Plastic, Wooden stick, None of these

Back

Plastic

Front

If you connect three LEDs in a parallel circuit, how will their brightness compare to a series circuit?

Back

Brighter in a parallel circuit

Front

Why does this happen in a parallel circuit?

Back

Each LED gets the full voltage of the power source

Front

What happens when you add a switch to your circuit and turn it off?

Back

The circuit breaks, stopping the flow of electricity, and the LEDs turn off.

Front

What happens if you use two LEDs of different colors, like Blue and Red, in your circuit?

Back

One LED may not turn on properly

Front

What should you do to ensure both LEDs work properly? Options: Add a 100-ohm resistor to your LEDs, Use two of the same color LEDs, Choose color combinations like Red, Green, and Yellow or Blue and White

Back

All of the above

Front

Why do Red, Green, and Yellow LEDs work well together in a circuit?

Back

They all require similar amounts of electrical energy (voltage) to light up

Front

Why do Blue and White LEDs work well together in a circuit?

Back

They require higher amounts of electrical energy (voltage) to light up, which matches their compatibility

Front

Why might one LED not turn on when using incompatible color combinations like Blue and Red?

Back

Different colors of LEDs require different voltages, and one might not receive enough voltage to light up.