Electricity Check Point

What is an electric circuit?

• The path which the electric current takes.

• The movement or flow of negatively charged electrons

• The presence of electrons

• An electric charge that collects or builds up on the surface of an object

Electricity is the presence of movement of _______ .

• Neutrons

• Protons

• Electrons

• Nucleus

Which one is the circuit diagram of this picture?

• 
• 
• 
• 

If we add more light bulbs into a parallel circuit, how will the brightness of the bulbs change?

• It will get dimmer

• It will get brighter

• The brightness will stay the same

• None of the light bulb will be on

If one of the light bulb in series circuit is taken off, what will happen to the other light bulb?

• The other light bulb will be on

• The other light bulb will be off

• The other light bulb will stay on

• Both light bulb will be on

This circuit has a 24 volt battery and the resistor is 8 ohms. How many amps are running through the circuit?

• 3 Amps
• 192 Amps
• 2 Amps
• 4 Amps

If a toaster produces 12 ohms of resistance in a 120-volt circuit, what is the amount of current in the

circuit?

• 5A

• 10A

• 15A

• 20A

A light bulb has a resistance of 5 ohms and a maximum current of 10 A. How much voltage can be applied

before the bulb will break?

• 5V

• 10V

• 25V

• 50V

How do you calculate resistance?

• Voltage X Current
• Current ÷ Voltage
• Voltage ÷ Current
• Current X Amps

How do you calculate voltage?

• Current X Resistance
• Resistance ÷ Current
• Current ÷ Resistance
• Measure it with a ruler