GRADE 8 Online Activity

Which of the following is correct?

• R = IV

• R = I/V

• I = R/V

• V = IR

What is the unit of measurement of resistance?

• Amperes

• Ohms

• Volts

The rate of flow of electrons through a wire is known as __________ and is measured using __________.

• resistance, Ohms

• voltage, Volts

• current, Amperes

What does the arrows in the circuit represents?

• conventional current
• electron flow
• eletromotive force
• voltage

How can you distinguish between electrical conductors and insulators experimentally?

• By observing their color

• By measuring their weight

• By checking their hardness

• By testing their ability to allow electric current to flow

Which of the following materials is an example of an electrical conductor?

• Rubber

• Glass

• Copper

• Plastic

What is the unit of measurement for charge?

• Volts (V)

• Amperes (A)

• Coulombs (C)

• Ohms (O)

TRUE OR FALSE: Protons, which are located inside the atom of an object, is capable of moving out from their orbit.

• True

• False

The electrical force that pushes the electrons out of its orbit

• Current
• Voltage
• Resistance
• Power

The movement of electrons is called

• Voltage
• Current
• Resistance
• Power