Basic Waves

Question 1

Waves transfer __________________ via ____________________. Waves do not transfer matter.

Answer 1

Energy, Oscillation

Question 2

A Mechanical wave is a wave which needs a ____________________ – a substance that oscillates to allow the transfer of energy.

Answer 2

Medium

Question 3

An example of a mechanical wave is _____________ which requires air molecules to vibrate to transfer the wave.
_________________________waves are not mechanical as they do not need matter to support them.

Answer 3

Sound, Electromagnetic

Question 4

_________________________ is one that appears to spread out from their source.

Answer 4

A Mechanical wave

Question 5

Progressive waves transfer ____________________ via oscillations without transferring ___________________.

Answer 5

Energy, Matter

Question 6

There are two types of waves, ________________________and ______________________________waves.

Answer 6

Longitudinal, Transvers

Question 7

Which of these waves do you think are mechanical waves?
Wave type
Ultrasound
Infrared
Water
Seismic
Radio

Answer 7

Wave type, Yes
Ultrasound, No
Infrared, Yes
Water, Yes
Seismic, Yes
Radio, No

Question 8

Explain why can sound not travel in space?

Answer 8

1. Sound is a mechanical wave
2. Mechanical waves need a medium to travel through
3. Space is a vacuum / no air for sound to move through / no medium

Question 9

These are waves in which the oscillations of the particles is _________________________to the direction of movement of the wave energy

Answer 9

Perpendicular

Question 10

These are waves in which the oscillations of the particles are ________________________to the direction of movement of the wave energy.

Answer 10

Parallel

Question 11

This wave is generated by squashing particles together and then stretching them apart repeatedly.
The areas of higher pressure are _____________________.
The areas of low pressure are ________________________________.

Answer 11

Compressions, Rarefaction

Question 12

Waves transfer ___________ from one place to another.

Answer 12

Energy

Question 13

Waves in which the vibrations are perpendicular to the propagation of the wave are _____________________.

Answer 13

Transverse Waves

Question 14

Waves in which the vibrations are parallel to the propagation of the wave are ___________________.

Answer 14

Longitudinal Waves

Question 15

Waves in which the vibrations are parallel to
the propagation of the wave are ______________________.

Answer 15

Rarefaction

Question 16

Longitudinal waves show areas of _________ where the particles of the wave are close together.

Answer 16

Compression

Question 17

What is definition of Displacement?

Answer 17

The distance and direction from the equilibrium position.

Question 18

What is definition of Amplitude?

Answer 18

The magnitude of the maximum displacement.

Question 19

What is definition of Frequency?

Answer 19

the number of complete cycles per second

Question 20

What is definition of Wavelength?

Answer 20

the distance between a point on a wave and the same point on the next wave.

Question 21

What is definition of Time period?

Answer 21

The time taken for one complete oscillation.

Question 22

What is definition of Wave speed?

Answer 22

rate of movement of a wave

Question 23

What is the equation of wave?

Answer 23

𝑣 = 𝑓𝜆

Question 24

What is the equation of frequency?

Answer 24

𝑓 = 1/𝑇

Question 25

What is a spectrum?

Answer 25

A spectrum (plural spectra or spectrums) is a condition that is not limited to a specific set of values but can vary, without steps, across a continuum.

Question 26

Add arrows to the right hand side of the table
to show the direction of…

Answer 26

– Increasing frequency
– Increasing wavelength
– Increasing energy

Question 27

An oscilloscope is a bit like an?

Answer 27

displacement time
graph