Waves

Question 1

Cycle

Answer 1

A unit of motion that repeats over and over

One spin of a bicycle wheel is a cycle

Question 2

Oscillation

Answer 2

Motion that repeats regularly

Question 3

Frequency

Answer 3

The number of cycles per second.

Your heartbeat has a frequency between one-half and two cycles per second

Question 4

Period

Answer 4

The time for one cycle to occur

Question 5

Vibration

Answer 5

Another word used for back and forth

Question 6

Hertz

Answer 6

The unit of one cycle per second

Question 7

Amplitude

Answer 7

The size of a cycle

Question 8

Damping

Answer 8

The gradual loss of amplitude of an oscillator

Question 9

Phase

Answer 9

Tells you exactly where an oscillator is in its cycle

Question 10

Equilibrium

Answer 10

The system at rest, undisturbed, with zero net force

Question 11

Restoring force

Answer 11

Any force that always acts to pull the system back toward equilibrium

Question 12

Resonance

Answer 12

Occurs when a periodic force has the same frequency as the natural frequency of the system

Question 13

Harmonic motion

Answer 13

Motion that repeats

Question 14

Natural frequency

Answer 14

The frequency at which a ststem naturally oscillates

Question 15

Periodic force

Answer 15

A force that is repeated over and over

Question 16

Light is the result of _

Answer 16

Harmonic motion of the electric and magnetic fields

Question 17

Almost all modern communication technology relies on what?

Answer 17

Harmonic motion

The electronic technology in a cell phone uses an oscillator that makes more than 100 million cycles each second.

Question 18

Frequency and what are inversely related?

Answer 18

Period. The period is the time per cycle

Question 19

Frequency is meausures in ____

Answer 19

Hertz

Question 20

A ___ is the building block of harmonic motion and has a beginning and an end.

Answer 20

Cycle

Question 21

The time it takes for one cycle is called the ____.

Answer 21

Period

Question 22

Motion that repeats itself over and over is called the ____.

Answer 22

Harmonic motion

Question 23

The number of cycles an oscillator makes per second is called the ___.

Answer 23

Period

Question 24

A pendulum, an atom, and the solar system are all examples of ___

Answer 24

Oscillators

Question 25

____ describes the size of a cycle

Answer 25

Amplitude

Question 26

Swinging motion is an example of a ____

Answer 26

Harmonic motion