Electricity

Electricity is caused by the flow of _____________________.

• electrons

• protons

• neutrons

• atoms

Which image correctly shows how electrons flow through a battery? *red arrows show direction of electron movement

• 
• 
• 
• 

This is a parallel circuit. Why would this type of circuit be a better option in houses and schools than series circuits?

• if one of the bulbs died, it would not effect the other bulbs on the circuit.

• if one of the bulbs died, it would cause the rest of the bulbs in the circuit to fail.

• if the battery dies, both bulbs stay on.

• the battery cannot die in this type of circuit.

Opposite charges _________________.

• attract

• repel

• push away

• remain neutral

Electric currents are similar to water currents because...

• they both deal with the flow of particles from one area to another

• water is made of electricity

• push away

• remain neutral

Good conductors like _____________ allow current to flow through wire.

• copper

• wood

• plastic

• glass

Important safety features of wires include using an _________________, like rubber, around the metal wire to prevent electrocution.

• insulator

• conductor

• electron particle

• exposed wire

To create static charge (static electricity) a material must lose or gain ___________________.

• electrons

• protons

• neutrons

• nuclei

In this closed circuit, the flow of electrons is counter-clockwise (direction of red arrows) What direction would the electrons move if the battery was flipped?

• the electrons would move clockwise

• the electrons would continue to move counter-clockwise

• the protons would move clockwise

• the neutrons would begin to move counter-clockwise

You have two statically charged balloons.

Which of the following is the best reason why the balloons push each other apart?

• The balloons have magnetic charges

• The balloons have no charges

• The balloons have opposite charges

• The balloons have the same charge