During a science project, Mira and Grace are building a simple circuit and need to use an electrolytic capacitor. They are curious to know: What are the plates made out of in an electrolytic capacitor?

In a science class, Emily is learning about capacitors. She wonders, what is the insulation called between the plates?

In a classroom discussion, Ishaan was asked to name two types of Dielectric materials. One of them starts with 'M' and another starts with 'C'. Can you help him?

Riley is learning about electronics and she wants to know what the term 'Capacitor value' means. It refers to how much ________ the capacitor can hold.

• charge

• inductance

• resistance

• voltage

Laura is working on a science project involving capacitors. She wants to know what does not affect the capacitance of a capacitor?

• The voltage applied to the capacitor.

• The shape of the capacitor.

• The dielectric material used in the capacitor.

• The distance between the capacitor plates.

Oscar is working on a science project and needs to measure the capacitance of a capacitor. What unit should he use?

• farads

• ohms

• volts

• watts

Mira is working on a project that involves selecting capacitors for an electronic circuit. She needs to know the typical range of capacitance values. The capacitances are usually rated between ___

• nanofarads (nF) to kilofarads (kF)

• millifarads (mF) to microfarads (µF)

• femtofarads (fF) to decafarads (daF)

• microfarads (µF) to picofarads (pF)

Evie is working on a school project involving electronic circuits. She notices a capacitor with 25V written on its side. What does this 25V indicate? R____ V______

Mira is working on a project to build a small radio. She wonders, what is the main reason for using a capacitor in her circuit?

Matilda is working on a circuit project and needs to choose a capacitor to use as a bypass or reservoir. Which one of the following should she use:

• Electrolytic capacitor

• Tantalum capacitor

• Film capacitor

• Ceramic capacitor

Answer explanation

The answer is Electrolytic capacitor because

a) bypass circuits or reservoir circuits need to last longer as mucg as possible.

b) They have largest capacitance starting in uF while ceramic are usually measured in pF.