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What is an electric component that can detect changes in conditions such as pressure, temperature or light?

• sensor

• resistor

• senses

• current

This is a device that is used to connect or disconnect a circuit..?

• voltage

• motor

• switch

• plug

What is the unit of electricity used @ home

• J

• w

• kW

• kWh

Which one is used in power stations?

• kW

• MW

• k ohm

• Ampere

Determine the resistance value and the tolerance of the resistor: brown red black, gold

• 120 ohm, 5%

• 1000 ohm, 5%

• 1020 ohm ,10%

• none of the above

Which of the following resistor has a resistance of 4700 ohm, 5%

• yellow violet red, gold

• brown black brown, red

• brown black red, gold

• red red black, brown

What are the materials that hold electrons very tightly, and thus don't allow much static electricity to occur around them?

Who is the Italian scientist who invented the first electric battery?

The bulbs will give off less light when more light bulbs are added in circuit. What type of circuit is this?

State the Ohm’s law.