Grade 8 Electricity FA (1)

When Aanya, Aarav, and Myra charge a balloon by rubbing it with a cloth, what happens?

• It can attract small pieces of paper

• It can repel small pieces of paper

• It does nothing when brought near small pieces of paper

• None of the above

What is an example of a substance that does not conduct electricity? Is it:

• Conductors

• Insulators

What is the total resistance (RT) across this circuit, as calculated by Anika, Aarav, and Kabir?

• 9.2 kΩ

• 4.6 kΩ

• 6.6 kΩ

• 10.2 kΩ

During a storm, Krish observed that the base of a cloud becomes negatively charged. Lightning occurs soon after because:

• The negatively charged particles in the cloud attract to the negative charge of the ground.

• The negatively charged particles in the cloud attract to the negative charge of the ground.

• The negatively charged particles in the cloud attract to the positive charge of the ground.

• The negatively charged particles in the cloud repel the positive charge of the ground.

When Nikita connects a voltmeter parallel to a 1 kΩ resistor in a circuit, what reading will the voltmeter show?

• 13 V

• 9 A

• 9 V

• 13 A

Hey Avyaan, Rohan, and Eesha! If two charged objects attract each other, which is NOT a possible explanation?

• They must have the same charge

• One must be negatively charged while the other is positively charged

• One must be charged while the other is uncharged

• All of the above

When Dia walks across a nylon carpet, she becomes positively charged. When she then touches a metal handle she receives a shock because:

• Neutrons jump from the handle to Dia

• Electrons jump from the handle to Dia

• Protons jump from Dia to the handle

• Electrons jump from Dia to the handle

Which best describes a parallel circuit?

• The flow of electrons comes from one source. 

• Current flows along one pathway.

• The flow of electrons comes from more than one source

• Current flows along more than one pathway. 

While Kabir, Sneha, and Shaan are working on a science project, they come across a simple circuit. What can they avoid in order to create a working circuit?

• battery (power source)

• lightbulb

• current

• closed circuit

Who among Kiara, Neha, and Aarush is the negatively charged particle in an atom, moves freely, can be released or shared from an atom?

• Proton

• Neutron

• Electron

• Nucleus