Forces
Applications
Earth and Space
Magnets
General
100
A force that requires physical touch between objects
What is a contact force?
100
Machines that use X-ray radiation to create images of soft human tissue
What are MRI machines
100
What is the stream of charged particles emitted from the Sun?
Solar Wind
100
Electrons transfer from what to what when you rub balloon on hair
What is Hair to balloon?
100
What is the reason satellites do not fall directly to Earth but remain at a constant height.
They are constantly falling towards Earth as gravity pulls the satellite in and the force of circling around Earth pulls the satellite forward
200
Force that acts at a distance without physical contact
What is noncontact force?
200
Convert mechanical energy into electrical charge
What is a generator?
200
Human-made objects orbiting Earth that pose collision risks
What is space junk?
200
What is a magnetic healing product that is BAD SCIENCE
Magnetic therapy or magnetic bracelets
200
How do speakers use/show electromagnetic forces?
They convert electrical signals into sound waves through movement of a coil around permanent magnet
300
What is the force of attraction that pulls objects toward each other, such as towards the center of the Earth
What is gravity?
300
Musical instrument played by moving hands through electromagnetic fields
What is the theremin?
300
Small engines that help spacecraft change direction/speed
What are thrusters?
300
What force causes the wire to spin in a Monopole motor demonstration
What is Lorentz Force, which is the interaction between electric current and magnetic field
300
Ranks materials by how easily they gain or lose electrons
Triboelectric series
400
A region around a magnet where magnetic forces can act on objects
Magnetic Field
400
Pressuring high voltage through an insulator create branching patterns
What are Lichtenberg figures?
400
Protects Earth from harmful solar wind
Earth's magnetosphere
400
Increasing the electric current when wrapping a wire around an iron nail connected to a battery INCREASES or DECREASES the strength of the electromagnet
What is INCREASES
400
Explain the difference between magnetic and nonmagnetic materials
Magnetic materials are either attracted or repelled by magnets
Nonmagnetic materials do not react to a magnet
500
Type of noncontact force that uses electrical charge
What is magnetism/magnetic force?
500
Name three kinds of art installations that uses noncontact force
Three of the following- Ferrofluid art, pendulum painting, kinetic sculpture, and magnet paintings
500
Causes ocean tides on Earth
Gravitational Pull of Moon/Sun
500
Two items necessary for a wireless charging system to transfer energy
Transmitter coil and receiver coil
500
Magnetic materials are either paramagnetic or ferromagnetic- what is the difference between them?
Ferromagnetic materials are strongly/permanently attracted to magnets while paramagnetic show weak/temporary magnetism that disappears when the external field is removed.