1

Question 1

demonstrated that two wires carrying current
could be made to attract or repel each other

Answer 1

ampere’s law

Question 2

changing magnetic field causes electricity to flow in an electric circuit

Answer 2

electromagnetic induction

Question 3

He was able to wrap a large number of turns of
wire around the core and thus, greatly increase
the power of a magnet.

Answer 3

electromagnetic magnetic self induction

Question 4

Proof of the
existence of
electromagnetic
waves, Hertz’s
principle of least
curvature, the
photoelectric effect
and the speed of the
EM wave.

Answer 4

em waves existence

Question 5

are emitted by
vibrating/accelerating electric
charges, with the electric field and
magnetic field vibrating
perpendicularly to each other and
to the direction of wave
propagation.

Answer 5

electromagnetic waves

Question 6

are temporary
disturbance that transfer energy
from one place to another

Answer 6

waves

Question 7

is the height
of a wave and is usually
measured in meters.

Answer 7

amplitude

Question 8

is the
distance between two
consecutive crests or
troughs and usually
measured in meters.

Answer 8

wavelength

Question 9

is the number of waves
passing a point in a certain time. It
is measured as 1 wave/sec or 1
Hertz.

Answer 9

frequency