Abeka 9th Science Test 8 p2 L114

A permanent magnet used to provide a stationary magnetic field is called a(n) _______.

• electromagnet
• field magnet

• temporary magnet
• superconductor

One of more electrochemical cells connected to terminals as a single source of current form a(n) _________.

• capacitor
• resistor
• battery
• inductor

A material that glows when exposed to radiation is a(n) __________.

• insulating material
• reflective hydrogen

• phosphor

• mutant slime

The ability of magnetism to convert mechanical motion into electric current is called ________.

• electromagnetic induction
• mechanical energy conversion
• electrostatic discharge
• magnetic resonance

A device that increases or decreases the voltage of alternating current is a(n) _________.

• transformer
• inductor
• capacitor
• rectifier

What type of electrochemical cell is not designed to be recharged?

• Flow battery
• Fuel cell
• Voltaic cell

• Secondary cell

What natural electrostatic phenomenom, alos known as corona discharge, is an accumulation of electrons around pointed objects that results in an eerie blue glow?

• Aurora Borealis
• Ball Lightning
• St. Elmo's Fire
• Northern Lights

What is a device that uses electromagnetic induction to produce electricity?

• Transformer
• Solar Panel
• Electric generator

• Battery

What system of communication uses a combination of long and short clicks to transmit messages over long distances?

• Semaphore signals
• Morse code
• Sign language
• Carrier pigeons

What is the positive terminal of a voltaic cell called?

• cathode
• anode
• cathodic
• negative terminal