Properties
Vocabulary
Magnet Facts
Earth
Other
Math
Basic physics
100
These are the two poles of a magnet.
What are north and south?
100
__________ is a term that describes objects with strong magnetic fields.
What is Ferromagnetic?
100
The earliest records of magnetic navigation were used by the _______.
Who are the Greeks?
100
This protects Earth from damage from solar winds.
What is Earth's magnetic field?
100
This phenomena protects Earth from the suns solar winds.
What are Earth's magnetic fields.
100
6.67 x 10^-11 N
what is G?
100
This is responsible for the movement of tectonic plates.
What is convection current in the mantle?
200
The force from a magnet gets weaker.
What happens when you pull magnets apart?
200
_______ describes the difference between the direction a compass points and the direction of true north.
What is magnetic declination?
200
These are two examples of rocks that have magnetic properties.
What is Lodestone and Magnetite?
200
Earths geographical south has a magnetic________ pole.
What is magnetic North pole?
200
True or false: The magnetic field of other planets looks the same as that of earth.
What is false?
200
Universal law of gravitation equation
GM1M2 / R^2
200
A 3-rope-pully system is used to lift 15 N of force, what amount of force is being exerted on each rope?
5 N of force.
300
This will happen to a magnetic field is the magnet is dropped, or exposed to extreme temperature.
What will cause magnetic field to weaken?
300
Earths magnetic fields is describing the flow of ______ _____ in the molten iron inside earth.
What are electrons/ electron field?
300
This causes the magnetic field of earth.
What is the flow of iron in the mantle of Earth?
300
If the arrows in a magnetic field or electric field diagrams are large thick arrows. What can we say about the strength of that field?
The fields are strong.
300
This is a term for materials used that that can not be replaced. (Also provide an example of this term)
What are nonrenewable resources (Fossil Fuels)?
300
Equation to solve for electric field force.
F=qE
300
If the bridge is at equilibrium with 39 N of force going down, and we know 19 N of force is being applied up, What is the value of the missing force being applied upwards?
20N
400
If these two poles are put together, then they will repel.
What are south and south, or north-north?
400
_______ act like tiny magnets with north and south poles.
What are atoms?
400
Danish physicist and chemist, and a professor, placed a compass needle near a wire through which he could make electric current flow.
Who is Hans Oersted?
400
Earth's geographical north pole is magnetic ________.
What is south pole?
400
This is a unit used to measure the strength of a magnetic field.
What is the gauss?
400
Calculate the force of an electric field if we know the charge is 150 C and E is 10 V/m.
What is 1500 N?
400
What equation can be used to find a missing side of a triangle?
A^2 + B^2 =C^2
500
Chemical in magnetic material that makes it magnetic.
What is iron?
500
The difference between the direction a compass points and the direction of true north is called______ ________.
What is magnetic declination?
500
Nails are not magnetic, but if you attach a magnet to a nail, the nail becomes magnetic. Why?
Because the magnetic field travels through the nail.
500
If Earth was to decrease in mass, how would the magnetic field be affected?
The magnetic field would decrease/become weaker.
500
This physicist found that the induced voltage is proportional to the rate of change of the magnetic field through the coil.
Who is Michael Faraday?
500
Use the universal law of gravitation to calculate the gravitational force between object 1 (5kg) and object 2 (3kg) is the are 2 meters apart.
What is 2.5 x 10 ^-10 N
500
A car travels at a constant speed of 30 m/s for 10 seconds. How far does the car travel?
300 meters
600
This happens to the current if you double the strength of the field.
What is current also doubles?
600
This is a law that states that a field decreases as the square of the distance from the source of the field increases.
What is the inverse square law?
600
What is the velocity of the interaction among magnetic fields?
300,000,000 m/s or the speed of light.
600
We know earth contains a hot, dense molten metal layer because of this form of natural disaster.
what are earth quakes?
600
Like gravity, the force between electric charges is carried by a field, called _____ _____.
What are electric fields?
600
The planet Mars has a mass of 6.4 × 10^23 kg and a radius of 3.4 million m. Calculate the value of g on the surface of Mars.
What is 3.7 N/kg ?
600
A 5 kg box is lifted 3 meters vertically. How much work is done to lift the box? (Assume gravitational acceleration is 9.8 m/s²)
What is 147 J?
700
Fe3O4=?
What is Magnetite?
700
The _____ ____ rule is used to explain the current exerted in coils, based off of Hans Oersted's theory. If your thumb is pointing up the electric current will flow in a counter-clockwise motion.
What is the Right Hand Rule?
700
Where is the magnetic field of a magnet the weakest?
in the middle to the left or right.
700
This is the percentage of Earth's magnetic field that is being lost each 100 years.
What is 7%?
700
Gravitational fields, electric fields, and magnetic fields are all examples of ______ because we can we can use arrows to draw the direction
What are examples of Vectors/ vector fields.
700
What law helps explain why as Earth tilts farther away from the sun, we will experience less heat?
Inverse square law
700
If the Right side of the magnet is magnetic North, and the left side of the magnet is magnetic south, What letter best indicates the strongest part of the magnetic field?
D