Electricity and Electric Circuits

What is current electricity?

• The flow of electrons around a circuit.

• The build up of electrical energy in one place.

• The flow of electricity in a river.

• The flow of atoms around a ciruit.

What is static electricity?

• The flow of electrons around a circuit.

• The build up of electrical energy in one place.

• The flow of electricity in a river.

• The flow of atoms around a ciruit.

Which one of these is NOT essential part of a complete circuit?

• cell

• bulb

• switch

• wire

Which of these is the correct symbol for a bulb?

• 
• 
• 
• 

Which of these is the correct symbol for a closed circuit?

• 
• 
• 
• 

Which of these is the correct symbol for a buzzer?

• 
• 
• 
• 

What happens to the brightness of the bulb when you increase the length of the wire?

• The bulb gets brighter

• The bulb gets dimmer

• Nothing

• Depends on the type of the wire

What happens to the brightness of the bulb when you increase the thickness of the wire?

• The bulb gets brighter

• The bulb gets dimmer

• Nothing

• Depends on the type of the wire

What is the maximum number of 1.5V batteries you could use to light a 7V lightbulb?

• 2

• 3

• 4

• 5

Which of these circuits would the bulb(s) be brightest in?

• 2 cells, 2 bulbs

• 1 cell, 2 bulbs

• 2 cells, 1 bulb

• 1 cell, 1 bulb