Waves Basic

Question 1

What are waves and what do they carry?

Answer 1

Know that waves are disturbances that carry energy but not matter

Question 2

What does frequency mean?🌊⏱🌊⏱🌊⏱

Answer 2

Number of waves per second measured in hertz (Hz)

Question 3

λ

Answer 3

Wavelength measured in m (metres)

Question 4

Velocity

Answer 4

Wave speed measured in m/s

Question 5

A

Answer 5

Amplitude measured in m

How tall it is

Question 6

T

Answer 6

Time period measured in s

Question 7

Which bit of the wave is the amplitude and which bit is wave length?
  \_\_\_              \_\_\_
/       \         / -a- \
------------------------
          \\_\_\_/             \_^b_/

Answer 7

A = wavelength

B= amplitude

Question 8

LONGITUDINAL WAVES

Defination

Answer 8

LONGITUDINAL WAVE THE OSCILLATIONS ARE PARALLEL TO THE DIRECTIONS OF WAVE TRAVEL

Question 9

TRANVERSE WAVES

Defination

Answer 9

TRANVERSE WAVE THE OSCILLATIONS ARE PERPENDICULAR TO THE DIRECTION OF WAVE🌊 TRAVEL🧳

Question 10

Perpendicular

Answer 10

Transverse

Question 11

Parallel

Answer 11

Longitudinal

Question 12

Examples of transverse waves

Answer 12

Examples of these waves are: vibrations in strings, ripples on water surface and electromagnetic waves

Electromagnetic waves=

• radio waves
• micro-waves
• visible light
• ultra violet
• x-rays
• gamma rays

Question 13

Examples of longitudinal waves?

Answer 13

Sound waves

Question 14

Whats the wave equation

Answer 14

V = f x λ V
f λ

Question 15

Whats the equation for time period

Answer 15

T = 1/f

F = 1/t

Question 16

What equation do u use to find the speed of sound or ripples in a water?

Answer 16

Speed = distance/time

Question 17

What simple methods do you use to create a wave easily so u can meausre it?

Answer 17

Use a tray filled with water
Tip the tray to create a wave

Time how long it takes for the wave to travel to the length of the tray and back again

Wave gets slower when its shallower

Question 18

What simple method could u use to measure speed of sound

Answer 18

Signal your friend to bang the two blocks together hard🍳. Start the stopwatch⏱ as soon as you see the blocks hit each other. Press stop as soon as you hear the sound🗣 from the blocks. Calculate the speed of the sound by dividing the distance between you and your friend by the elapsed time.

Question 19

How to simply create a ripple

Answer 19

Use a ripple tonic

Tray filled with water
The dipper goes up and down causes ripples