O NOT WRITE ON TEST
PLEASE DO NOT
her students to produce an ene
wire. They connected one end
20) During physical science, Ms. Greene challe
wrapped a 4-inch nail with a coil of lily
switch. They connected the other terminal or
to the other terminal of the battery.
can energy transformation James
nnected the other terminal of the knife swits
e battery. Finally, they connected
mation James and Jill
coil to one terminal of a knife
hey connected the end of the coil
James held the tip ofa l-inch nail near the
opened it. The 1-inch nail was pulled toward
end of the 4-inch nail Jill closed the
nch nail was pulled toward the 4-inch nail
closed the knife switch quickly and then
James and Jill used a battery as a source of electric
the nail to move,
that created
energy that caused
A) motor, electrical
B) generator, magnetic
C) generator, electrical
D) electromagnet; magnetic
21)
2
1