Electrical Systems 2: Relationship V, I and R

Multiple Choice

Water pipe: If a more powerful pump is used, what will happen to the flow of water?

• The water flow increases.

• The water flow decreases.

• The water flow remains the same.

Multiple Choice

Water pipe: If more water pumps are used, what will happen to the flow of water?

• The water flow increases.

• The water flow decreases.

• The water flow remains the same.

Multiple Choice

Electric circuit: Two 9 V cells were used instead of a single 9 V cell, what will happen to the current of the circuit?

• The current increases.

• The current decreases.

• The current remains the same.

Multiple Choice

Electric circuit: Two 9 V cells were used instead of a single 9 V cell, what will happen to the brightness of the bulb.

• The bulb becomes brighter.

• The bulb becomes dimmer.

• The bulb remains the same brightness.

• The bulb stops shining.

Summarise relationship of V, I and R

Multiple Choice

Water pipe: If more water wheels are used, what will happen to the flow of water?

• The water flow increases.

• The water flow decreases.

• The water flow remains the same.

Multiple Choice

Electric circuit: A second light bulb was added to the circuit, what will happen to the current of the circuit?

• The current increases.

• The current decreases.

• The current remains the same.

Multiple Choice

Electric circuit: A second light bulb was added to the circuit, what will happen to the brightness of the bulb?

• The bulb becomes brighter.

• The bulb becomes dimmer.

• The bulb remains the same brightness.

• The bulb stops shining.

Summarise relationship of V, I and R

Multiple Choice

Bonus: What will happen to the brightness of the bulb when a resistor was added to the circuit? (Can you explain why?)

• The bulb becomes brighter.

• The bulb becomes dimmer.

• The bulb remains the same brightness.

• The bulb stops shining.