Physical Science 2: Milestone Electricity/Magnetism Review

Wanda's dad wired new lights for her playground. When he thought everything was connected, he turned on the switch and nothing happened. What could be the problem?

• He put too many lights and switches in the circuit.
• He needed to connect more batteries to the circuit
• He made a mistake that caused an open circuit.
• He should have wired the circuit in parallel.

When several light bulbs are connected in a series circuit, what will happen if one bulb burns out?

• All of the light bulbs will go out.
• The other bulbs will continue to burn.
• The other bulbs will burn together.
• There will be a short circuit.

Marta has a radio in her room. It requires electricity in order to play. Which of the following is necessary in order for electricity to move from the source to the radio?

• a circuit
• a magnet
•  a light bulb
• an insulator

When electricity moves through a metal wire, the wire is

• a generator
• an insulator
• a generator
• a conductor

Which material conducts electricity?

• piece of glass
• cotton t-shirt
•  rubber ball
•  copper coin

To have an electric current when using batteries, there MUST be a

•  switch
• lightbulb
• complete circuit
•  motor

Which term refers to the flow of electrical charges?

• conductance
• resistance
• current
•  energy

Which of these is a conductor?

• a short length of string
• a plastic drinking straw
•  a piece of aluminum foil
• a piece of chalk

 Why does plugging in and turning on a hair dryer make it operate?

• light energy can be converted into heat and wind
• electrons have a complete circuit to travel
•  heat energy can be transferred from a power station
• the flow of electricity is now stopped and can be contained

Which components could complete an electric circuit?

• wire, bulb, switch
• battery, bulb, switch
• battery, wire, switch
• battery, wire, bulb