Intro to Electricity Quiz

What is the electrical pressure exerted by a battery or other power source called?

• Current

• Voltage

• Resistance

• Power

How is electric current measured?

• In volts

• In ohms

• In amperes

• In watts

What is the formula for calculating power in an electrical circuit?

• Power = Voltage + Current

• Power = Voltage / Current

• Power = Voltage x Current

• Power = Voltage - Current

What unit is used to measure resistance?

• Volts

• Amperes

• Ohms

• Watts

What effect does placing components in series have on the resistance of a circuit?

• It does not change the resistance

• It decreases the resistance; lowest value dominates

• It increases the resistance; highest value dominates

• It alternates the resistance between high and low

What effect does placing components in parallel have on the resistance of a circuit?

• It does not change the resistance

• It decreases the resistance; lowest value dominates

• It increases the resistance; highest value dominates

• It alternates the resistance between high and low

Tags

NGSS.MS-PS2-3

In most electrical circuits, the pathway is made of:

• Metal
• Plastic
• Static
• Wood

Tags

NGSS.MS-ETS1-1

What is the path made for an electric current called?

• electric current

• an insulator

• a conductor

• a circuit

Since there are multiple pathways the current can take from the positive side of the battery to the negative side, in a ​ (a)   circuit, the ​ (b)   is divided up among the pathways, but the potential is the same for each pathway. ​In ​ (c)   circuits with only one pathway for the current, the ​ (d)   is divided up among the different elements.

• parallel
• current
• series
• potential

Which component is used to control the flow of electric current in a circuit?

• Capacitor

• Resistor

• Inductor

• Transformer