# Plasmas/Magnetohydrodynamics/Quiz

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Magnetohydrodynamics is a physics lecture.

Reversals of Earth's magnetic field are diagrammed. Credit: NASA.

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## Quiz

1 Yes or No, The Mitsubishi experimental boat Yamato 1 with magnetohydrodynamic drive is now on display in front of the Maritime Museum in Kobe, Japan.

 Yes No

2 Complete the text:

 A short or realization of a certain or idea to a treament's feasibility for magnetohydrodynamics is called a proof of .

3 Yes or No, In magnetostatics and magnetodynamics, Gauss's law for magnetism and Maxwell–Faraday equation reduce to the Bianchi identity.

 Yes No

4 True or False, A dominant group for magnetohydrodynamics differs from a control group in that it rules the treatment of the control group.

 TRUE FALSE

5 Yes or No, A branch of science concerned with forces acting on or exerted by fluids (especially liquids) is called hydrodynamics.

 Yes No

6 Which of the following is likely to be in a control group for assessing magnetohydrodynamics?

 one or more relations to observations an accepted set of dynamics a liquid nitrogen dewar a continuously active dynamo a possible electromagnetic artifact a wide temperature range for stability

7 Yes or No, The study of the interaction of electrically conducting fluids with magnetic fields is called magnetohydrodynamics.

 Yes No

8 True or False, Pure magnetohydrodynamics involves no doing apart from itself.

 TRUE FALSE

9 Yes or No, The fraction of a given part or the whole of a stellar surface covered by magnetic field is called the magnetic filling factor.

 Yes No

10 Evidence that demonstrates that a model or idea for magnetohydrodynamics versus a control group is feasible is called a

 .

11 Yes or No, Is the current magnetohydrodynamics within the conceptual circle of electrohydrodynamics?

 No Yes

12 Complete the text:

 A proof-of-concept structure of magnetohydrodynamics, including a control group, consists of , procedures, findings, and .

13 True or False, A control group may be used for magnetohydrodynamics to demonstrate no effect or a standard effect versus a novel effort applied to a treatment group.

 TRUE FALSE

14 Yes or No, The Magnetic Reynolds number is a dimensionless group that gives an estimate of the effects of magnetic advection to magnetic diffusion.

 No Yes

15 True or False, The purpose of a treatment group for magnetohydrodynamics is to describe natural processes or phenomena for the first time relative to a control group.

 TRUE FALSE

## Hypotheses

1. Magnetohydrodynamics may not have to include mass or gravity.