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by BlastRoom
Explore magnetic forces, motor and generator operation, and induced voltage.
#electromagnetism#matatag_science_10
20 questions
One question set, multiple game modes. Tap any game to see it in action. Not sure which to pick?
Viewed from the reader's side, which way does the field circle the wire?
A straight wire perpendicular to a magnetic field deflects when current flows. Which interaction accounts for the deflection?
The diagram shows conventional current and the magnetic field. Which arrow gives the force direction?
Only the battery connections are swapped in a jumping-wire experiment. What happens to the push on the wire?
When a current-carrying wire experiences a nonzero magnetic force, how is that force oriented?
The magnetic field acting on a wire doubles while current, wire length, and orientation stay fixed. How does the force change?
Which main energy conversion occurs in the device that turns a desk fan's blades?
Which label marks the part that reverses the coil's current every half-turn?
Which arrangement of magnetic forces makes a rectangular coil turn in a simple motor?
Ana's classroom motor has enamel-coated wire at its electrical contact points, and no current flows. What should she do first?
A permanent-magnet DC motor runs under a fixed load. Within its normal operating range, which change usually increases its steady rotation speed?
A water wheel drives a device that supplies a lamp. Which main energy conversion occurs in that device?
What do a simple DC motor and a simple AC generator have in common?
What does part C do in this device?
The magnet and coil remain stationary as shown. What will the meter indicate?
Why does the meter respond while the magnet moves toward the coil as shown?
Ana moves the same bar magnet through a coil more quickly along the same path. What changes if all other conditions stay fixed?
Lito pushes a magnet pole into a coil, then pulls it out along the same path. How do the meter deflections compare?
A 3 m rod, its motion, and a uniform magnetic field are mutually perpendicular. At 5 m/s in 0.5 T, what voltage appears across its ends?
A rod produces 6 V while moving at 6 m/s in a uniform 0.5 T field. The rod, motion, and field are mutually perpendicular. How long is the rod?
Crack the passcode before the zombies get in.
Pick a tile, answer, hit bonuses and steals.
Saving Electricity and Energy Sources
20 questions
