stud
bud
Sign up
Log in
Home
Library
Explore
SAT
More
Magnets: Lesson 3 Flashcards | StudBud
Explore
/
Magnets: Lesson 3
Magnets: Lesson 3
33 terms
·
StudBud Administration
·
276 plays
Imported from external platform
Flashcards
33 cards
F
Practice quiz
P
Host live
L
Questions
33
Answers
1
What are Ferrite magnets used for?
Microphones and loudspeakers
Stuff and things
Toys, small motors, door latches
2
What do sharks have that allow them to find prey, and possibly navigate using the Earth's magnetic field?
Magnetite in teeth and eye sensors
A compass
Teeth
Jelly filled ampullae that sense electrical fields
3
What are Rare-Earth Magnets used for?
Door latches
All of the answers are correct
Computer disks and MRIs
Motors and Toys
4
What were homing pigeons used for during World War I and II?
Navigation over long distances
Carrying gold over enemy lines
Being pigeons
Carrying messages over enemy lines.
5
What was the dependent variable in the Magnetic Force vs. Number of Magnets lab?
Force of the Magnets (grams)
Only Peppa Pig knows
Type of Hanger
Mass of the Magnets (# of magnets)
6
What are Rare-Earth Magnets made of?
None of these answers are correct
Common Metals
Nonmetals
Rare-Earth Metals
7
The two ends of a bar magnet, called the north and south pole, where its magnetic field is strongest.
Magnet
Magnetism
Magnetic poles
Magnetic Field
8
What is magnetite?
A type of Alnico magnet
A magnet used in motors and loudspeakers.
A mineral that can be magnetized that is found in lodestone rocks.
None of the answers are correct.
9
An experiment in which only one variable is manipulated at a time.
Controlled Experiment
Modifications
Dependent Variable
Independent Variable
10
The variable in an experiment whose value is kept constant.
Independent Variable
Controlled Variable
Modifications
Dependent Variable
11
What was the independent variable in the Magnetic Force vs. Number of Magnets lab?
Type of Hanger
Number of magnets
Force of the Magnets (grams)
Only Peppa Pig knows
12
What is a good indication that bacteria also use magnetic fields to navigate?
They move randomly near magnets
They form a circle around the magnet
They begin to break-dance in sync with Lil Baby music
They all move in the same direction when a magnet is placed near them.
13
What was a controlled variable in the Magnetic Force vs. Number of Magnets lab?
Force of the Magnets (grams)
The bridge system
Number of magnets
Only Peppa Pig knows
14
A material that has the ability to attract or repel other magnetic materials.
Magnetism
Magnetic poles
Magnetic Field
Magnet
15
Which of the following is a powerful permanent magnet made of neodymium, iron, and boron?
Rare-Earth Metals
Lodestone
Alnico magnet
None of these answers are correct
16
What possibilities are scientists studying to find out how animals migrate over long journeys?
The Earth's magnetic field
Landmarks such as Islands or Mountains
The Sun and Moon
All answers are correct
17
What have researchers done to test whether or not some turtles use magnetic fields to migrate long distances?
Subject them to powerful electrical currents
Place a magnet on their backs
Place a rock on their backs
Place a compass on their backs
18
The area of magnetic force around a magnet.
Alfalfa Field
Soccer Field
Hay Field
Magnetic Field
19
The space or area in which magnetic forces can be observed.
Magnetic poles
Magnetic Field
Magnet
Magnetism
20
What does "Ferrite" mean in Latin?
Iron
Gold
Copper
Magnetic
21
A magnet made of Aluminum, Nickel, and Cobalt metals.
Lodestone
Ferrite
Alnico
Rare Earth
22
Are all metals magnetic?
Yes
IDK and IDC
No
only when placed near magnets
23
How long have people been using magnetic compasses to navigate?
100 years
1000 years
1000 months
1000 dears
24
What has been proposed that birds use to fly and navigate over long distances with no landmarks, such as the ocean?
Magnetite in beaks and eye sensors
Rocks
Carrying messages over enemy lines.
A compass
25
The variable in an experiment whose value is measured by the experimenter.
Modifications
Dependent Variable
Independent Variable
Controlled Experiment
26
The force of attraction or repulsion of magnetic materials
Magnetic poles
Magnetism
Magnet
Magnetic Field
27
What might you use if you were lost in the woods with no cell service and GPS?
A compass
Your phone's navigation
Trees
magnet
28
What are homing pigeons famous for?
Carrying gold over enemy lines
Being pigeons
Navigation over long distances
They are the only birds with feathers
29
What are some characteristics of Rare-Earth Magnets?
They are found on refridgerators
They are used to cook steaks and tomatoes
They are extremely powerful
They are very weak magnets.
30
How might magnetite in Lodestone be magnetized naturally?
By tornadoes
By lightning
By being submerged in water
By being dropped from a height of 50 meterts or more by a bird
31
The force that opposes the motion of an object.
Fraction
Fructose
Force
Friction
32
What is Lodestone?
A rock with no magnetite
A man-made magnet
All answers are correct
A rock that contains magnetite
33
The variable in an experiment that the experimenter purposefully changes in order to determine its effect.
Independent Variable
Dependent Variable
Controlled Experiment
Modifications
