No student devices needed. Know more
20 questions
Magnetism is a force of ____________________________ that occurs between two _____________ objects.
attraction or repulsion, magnetic
external or internal, magnetic
external or repulsion, electronic
attraction or internal, electronic
In magnetic materials, all of the ________ are pointing in the same direction.
orbits
doors
domains
electrons
Which of the following items is NOT magnetic?
Cobalt Jet Turbine
Aluminum Foil
Iron Nail
Nickel-Coated Screw
Which of the following would you expect to be magnetic?
Plastic Water Bottle
Clay Pottery
Aluminum Car Door
Iron Wrench
What makes an electromagnet different from a normal magnet?
There are two north poles
There are two south poles
They can be turned on and off
An electromagnet is much bigger
If two magnets moving closer together, the magnetic force will get ______________
weaker
stronger
stays the same
it depends on the size of the magnets
If two magnets are placed so that two ____________ poles or two ____________ poles are facing each other, they will repel each other.
North; South
Positive; Negative
External; Internal
South; West
Magnetic fields are _____________ so we can use ______________ to investigate them
invisible; iron filings
invisible, copper shavings
small; microscopes
small; batteries
What is this a picture of?
Electromagnetic Generator
Solenoid
Turbine
Magnetic Field
An electric motor creates __________ energy
mechanical
electrical
magnetic
combustion
If you were hiking through the forest and are using a compass to navigate your trail, which way is the compass always going to point?
geographical south
magnetic north
geographical north
geographical west
An generator converts __________ energy into ___________ energy
mechanical; electric
mechanical; magnetic
magnetic; electric
electric; magnetic
What type of current is being demonstrated in this figure?
Alternating
There is no current
Direct
What type of current is being demonstrated in this figure?
Direct
Alternating
There is no current
____________ a device that increases or decreases the voltage of alternating current
Transformer
Generator
Electric Motor
Turbine
What is not found in a standard generator?
Wire coil
Turbine
Battery
Magnet
A(n) ____________ is the region where the magnetic field of a magnet is strongest
Magnetic Domain
Galvanometer
Magnetic Pole
Transformer
A windmill is an example of a _____________
Generator
Motor
Turbine
Solenoid
The current from a battery is __________ current, and the current from an outlet is _________ current
alternating; direct
direct; alternating
direct; direct
alternating; alternating
The generation of an electric current by a changing magnetic field is __________________________
electromagnetic transformation
electromagnetic domain
electromagnetic force
electromagnetic induction
Explore all questions with a free account