Science: Matter and Energy - Quiz 19

Michael is experimenting with different types of electric currents in his physics class. He observes that one type of current flows first in one direction and then in the other direction. This type of current is ________ current.

• alternating

• direct

Zoe is setting up a circuit in her physics lab. She needs to measure the resistance of a resistor. The SI unit of resistance is the ________.

• ohm

• ampere

Abigail noticed that her phone gets warm when she uses it for a long time. The heat caused by this 'electrical friction' is ________ heat.

• Joule

• Watt

William is trying to fix a lamp and notices that the wires are covered with a material through which electric current does not flow easily. These materials are ________.

• insulators

• conductors

Charlotte is working on a science project and needs a material that allows current to flow through it with no hindrance. She should choose a ________.

• superconductor

• semiconductor

Tags

NGSS.HS-PS3-5

William is setting up a new sound system in his room and needs to control the flow of electricity to the speakers. He uses a device designed to hinder current flow in the circuit. What is this device called?

• capacitor

• resistor

William is trying to push a cart uphill, and the amount the hill hinders the cart's movement is the ________.

• resistance

• voltage

What is the work per unit charge done to move electric charges between differently charged parts of a conductor?

• voltage

• power

• current

• energy

Liam is setting up a simple electrical circuit for his science project. He wants to understand how the current, voltage, and resistance are related in his circuit. Which law should he refer to?

• law of circuits

• law of electric force

• Ohm's law

• Volta's law

Grace is setting up a small electric circuit for her science project. She uses a resistor with a resistance of 2 Ω and connects it to a battery that provides a voltage of 6 V. What is the current flowing through the circuit?

• 1/3 A

• 3 A

• 12 A

• 36 A