Electricity and magnets

Where in the atom will you find the protons?

• In the nucleus

• In the electron cloud

• On the outside

The charge of an electron is...

Aluminium has a charge of 3+. What is true about aluminium?

• It's a cation, it gained 3 electrons

• It's an anion, it lost 3 electrons

• It's a cation, it lost 3 electrons

• It's an anion, it gained 3 electrons

Which of the following materials in NOT an electrical conductor.

• Copper (Cu)

• Iron (Fe)

• Calcium (Ca)

• Oxygen (O)

What is the name of the group of elements on the periodic table that only conducts electricity under specific circumstances?

What is the unit of electrical current?

• Amps

• Volt

• Ohm

• Tesla

What word best describes the following statement.
Friction can cause electrons to come loose from their atoms. If the electrons are "rubbed off" the material, there will be an imbalance of charge between the two objects.

• Electrical current

• Static electricity

• Lightning

• Love

What is the currrent through ligh bulb nr. 3?

• 22,5 Ohm

• 3,6 A

• 0,40 A

• 0,44 V

What is the voltage on light bulb number 3?

• 4,0 V

• 1,0 V

• 2,7 V

• 30 V

Which light bulb has the highest resistance?

• Light bulb 1

• Light bulb 2

• Light bulb 3

• It's impossible to tell because this circuit is in parallel, so the resistannce doesn't add up.