Circuits and Electromagnets

1. Which of the following materials allows electricity to flow through it easily?

• Plastic

• Metal

• Wood Glass

• Glass

What is the connector along which electricity flows called?

• Wire

• Battery

• Circuit

• Plug

1. Which of the following is not a source of energy?

• Sun

• Battery

• Wind

• Rock

1. What do we call a circuit that allows electricity to flow through it?

• Closed circuit

• Short circuit

• Open circuit

• Parallel circuit

1. Which of the following is an example of a conductor?

• Rubber

• Aluminum foil

• Plastic

• Glass

1. What happens when you connect more batteries in a series in a circuit?

• The brightness of the bulb increases

• The bulb becomes dimmer

• The circuit becomes shorter

• The circuit becomes longer

1. Which of the following is an example of an electromagnet?

•  A bar of iron

• A plastic ruler

• A paper clip wrapped with wire and connected to

  a battery

• A wooden stick

1. How can electromagnets be used in everyday life?

• To pick up metal objects

• To cook food

• To make clothes

• To clean the house

1. Which of the following best defines an open circuit?

• A circuit with a complete path for electricity to flow

• A circuit with no electricity flowing through it

• A circuit with only one component

• A circuit with a broken path for electricity to flow

Draw illustration of an open circuit.