Vocab
Concepts
Energy
Magnets
Random
100
the ability to make things move or change
energy
100
Ramon puts two magnetic toy trains very close to each other on a track. What will happen next, and why? 
The trains will move away from each other because the magnetic force will push the trains apart.
100
What is the energy of motion called?
kinetic energy
100
What are the names for the two poles of a magnet?
North Pole and South Pole
100
1. What primarily generates Earth’s magnetic field?
A. Electric storms in the atmosphere
B. Solar radiation interacting with the ozone layer
C. The motion of molten iron in the outer core
D. The rotation of Earth’s crust
C. The motion of molten iron in the outer core
200
to change from one type to another
convert
200
In a computer simulation, Jeffrey moves a magnet (Magnet 2) toward another magnet (Magnet 1) that cannot move. What happens to the potential energy in the system of magnets? 
The potential energy increases because Magnet 2 moves against the magnetic force.
200
Energy can be transferred from potential to kinetic when magnets __________, as seen in the launcher and spacecraft magnets
repel
200
The PE is the most when the magnet goes ______ the force.
Against or With
Against the force
200
What is the name of the region where Earth’s magnetic field is unusually weak?
A. The Equatorial Drift Zone
B. The South Atlantic Anomaly
C. The Pacific Magnetic Void
D. The Bermuda Gap
B. The South Atlantic Anomaly
300
set of interacting parts forming a complex whole
system
300
T/F
A single magnet is NOT a system
TRUE
300
Opposites ___________ and
Likes _______________
Attract, Repel
300
Which particle is primarily responsible for creating magnetic fields when it moves?
A. Neutron
B. Proton
C. Electron
D. Alpha particle
C. Electron
300
How often have Earth’s magnetic poles reversed over geological time?
A. Dozens to hundreds of times
B. Only once, about 65 million years ago
C. Every 1,000 years
D. They have never reversed
A. Dozens to hundreds of times
400
What are the imaginary lines that show the strength and direction of a magnetic field?
magnetic field lines
400
What happens to the strength of a magnetic field when the distance from a magnet increases?
It decreases
400
A ball sitting at the top of a hill will have the most ____ energy.
potential
400
If you break a magnet into two new magnets, each magnet will have a North and South Pole. True or False?
True
400
Which animal is known to use Earth’s magnetic field for navigation?
A. Giraffes
B. Penguins
C. Sea turtles
D. Koalas
C. Sea turtles
500
What is required to transfer energy into the system?
force
500
What is the basic source of all magnetic fields?
A. Gravity
B. Electric charges in motion
C. Sound waves
D. Heat energy
B. Electric charges in motion
500
A space ship is traveling through space. Suddenly its speed increases. What can you say about the spaceships KE?
KE increases
500
What is the strongest part of a bar magnet?
The poles.
500
What natural phenomenon is caused by charged particles spiraling along Earth’s magnetic field lines?
A. Auroras
B. Volcanic lightning
C. Tides
D. Earthquakes
A. Auroras