Y9 Kew Term Electricity Snap Quiz

Lightning is an example of static electricity.

• true
• false

A material in which electrons are able to move easily

• Circuit
• Insulator 
• Resistance 
• Conductor 

Tags

NGSS.HS-PS2-5

NGSS.HS-PS3-5

Which of the following gives the correct description of an insulator?

• A material that allows electrons to freely move through it

• A material that has a high level of resistance to electron flow

• A material that will conduct electricity easily

• A material that dissipates heat effectively

Electric current that flows in only one direction. 

• Voltage 
• Direct Current 
• Alternating Current
• Series Circuit 

The tendency for a material to oppose the flow of electrons, changing electrical energy into thermal energy and light.

• Voltage
• Current
• Resistance
• Circuit 

The unit for current is the 

• Volt
• Ohm
• Electron
• Amp

In a ________ circuit there are multiple paths for the current to take.

• Series
• Parallel

In a _________ circuit, if one bulb goes out then the entire circuit doesn't work.

• Series
• Parallel

A student connects a light bulb to a battery and causes it to light up. Which of the following observations would the student make if he replaced the first battery with a higher-voltage battery? Assume resistance is constant.

• A greater number of electrons would flow through the light bulb each second and each electron would have more energy.

• The same number of electrons would flow through the light bulb each second, but each electron would have more energy.

• The same number of electrons would flow through the light bulb each second, and each electron would have the same amount of energy.

• A greater number of electrons would flow through the light bulb each second and each electron would have the same amount of energy.

What voltage is needed to cause a 2A current flow through a 10Ω resistor?

• 5V
• 0.2V
• 20V
• 200V