CIE IGCSE Physics

Electric current is measured in ______.

• Watts
• Volts
• Amperes

What is the unit for resistance?

• Volts
• Amperes
• Ohms

How many volts are in a circuit with a battery that has a resistance of 10 Ohms and a current of 2 Amps? 

• .5 Volts
• 5 Volts
• 20 Volts

What type of circuit is pictured?

• series
• Parallel

What happens to resistance when the length of the wire increases?

• Stays the same

• Increases

• Decreases

If the current through a resistor is 2A and the voltage across it is 12V, what is the resistance

• 12Ω

• 6Ω

• 24Ω

• 0.167Ω

What is a formula to calculate Charge

• Q=I*t
• Q=I/t
• Q = V*E
• Q = V/E

Define potential difference

• The amount of energy required per coulomb of charge

• The amount of charge per energy

• The amount of charge per second

• The amount of voltage per second

What does the arrows in the circuit represents?

• conventional current
• electron flow
• eletromotive force
• voltage

Which direction is the electron flow in a circuit?

• Negative to positive

• Positive to negative