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- 1. Multiple-choice30 seconds1 pt
The magnetic field lines are__________.
closed curves
open curves
semi circular
- 2. Multiple-choice30 seconds1 pt
The relative strength of the magnetic field is shown by the degree of closeness of the field lines.
false
true
can't say
- 3. Multiple-choice30 seconds1 pt
No two field-lines are found to cross each other.
true
false
- 4. Multiple-choice30 seconds1 pt
Fuse wire has high melting point. True or False:
True
False
May be false
May be correct
- 5. Multiple-choice45 seconds1 ptWhich word means how hard it is for electrons to flow?CurrentVoltageResistancePower
- 6. Multiple-choice45 seconds1 pt
This is an example of a _______ circuitopenseriesparallelsquare - 7. Multiple-choice45 seconds1 ptWhat is resistance measured in?Ω (Ohms)V (Volts)A (Amps)W (Watts)
- 8. Multiple-choice45 seconds1 ptWhat is the unit of power?
Ohms
VoltsAmpsWatts
- 9. Multiple-choice30 seconds1 ptVoltage is simply defined as...what 'pushes' electronswhat 'stops' electronsmoving electrons
- 10. Multiple-choice30 seconds1 pt
Where is Earth's magnetic field the strongest?
poles
equator
mountain tops
ocean floor
