P4 Electric Circuits

What does an ammeter measure?

• Coulombs

• Current

• Charge

• Amperes

What is resistance the measure of?

• How easily charge can flow

• How hot a wire is

• How easily charge can be counted

• How many particles are in a wire

Where in a circuit is an ammeter added?

• In parallel

• In series

Why is a voltmeter added in parallel?

• To measure the energy transferred before the component

• To measure the energy transferred after the component

• To measure the energy transferred to a component

• To measure the energy wasted by a component

What is charge measured in?

• Electrons

• Current

• Ohms

• Coulombs

How many joules are in 1 kJ?

• 10

• 100

• 1000

• 10,000

Complete the equation: ................ = potential difference / resistance

• Charge

• Current

• Resistance

• Coulomb

Complete the equation: Charge = ................ x ..............

• Time, Current

• Current , Voltage

• Resistance, Voltage

• Current , Time

Complete the equation: .............. = energy transferred / potential difference

• Current

• Time

• Charge

• Resistance

What is this circuit component?

• Fixed resistor

• Variable resistor

• Thermistor

• LDR