Electricity Review

What type of circuit has a complete path that allows electricity to flow through it?

• Insulator
• Conductor
• Open
• Closed

What type of circuit has a broken path that does NOT let current flow through?

• Toggle
• Switch
• Open
• Closed

How can it be explained that this boy's hair is sticking to the balloon in the picture?

• He needs to wash his hair.
• There is static electricity.
• There is too much dust in the air.
• A parallel circuit was on too long.

What natural hazard is also a powerful display of static electricity?

• Lightning
• Thunder
• Hurricane
• Tornado

The student felt the cool breeze of the fan. This is an example of -

• magnetic energy transformed into static
• mechanical energy transformed into magnetism
• solar energy transformed into battery
• electrical energy transformed into motion

The girl depends on electricity to vacuum the floor. The electricity she uses is changed into -

• Radiant energy
• Mechanical energy
• Light energy
• Superior energy

If the student touches a light bulb that has been on for a while, it will burn his hand. This is because -

• radiant energy was changed into electrical energy
• light energy was changed into mechanical energy
• electrical energy was changed into radiant energy
• static electricity has been changed into radiant energy

After returning from a winter vacation, a boy wanted to heat his home using electricity. The electricity was transformed into -

• thermal energy
• light energy
• mechanical energy
• superior energy

Electrical current passes through the wire curled around the nail. This model is of -

• a bar magnet
• a lightning rod
• a telephone
• an electromagnet

An electromagnet can be made using a battery, insulated wire, and -

• an aluminum can
• a nickel coin
• an iron nail
• a gold chain