A. Space, time and motion

A.1 Kinematics

A.2 Forces and momentum

A.3 Work, energy and power

A.4 Rigid body mechanics

A.5 Galilean and special relativity

B. The particulate nature of matter

B.1 Thermal energy transfers

B.2 Greenhouse effect

B.3 Gas laws

B.4 Thermodynamics

B.5 Current and circuits

C. Wave behaviour

C.1 Simple harmonic motion

C.2 Wave model

C.3 Wave phenomena

C.4 Standing waves and resonance

C.5 Doppler effect

D. Fields

D.1 Gravitational fields

D.2 Electric and magnetic fields

D.3 Motion in electromagnetic fields

D.4 Induction

E. Nuclear and quantum physics

E.1 Structure of the atom

E.2 Quantum physics

E.3 Radioactive decay

E.4 Fission

E.5 Fusion and stars

S Skills in Physics

S1.1 Experimental techniques

S1.2 Technology

S1.3 Mathematics

S2.1 Exploring and designing

S2.2 Collecting and processing data

S2.3 Concluding and evaluating

IB Physics HL C.2 Wave model Question Bank

[Maximum number: 1]

A travelling wave has a frequency of 500 Hz . The closest distance between two points on the wave that have a phase difference of $60^{\circ}\left(\frac{\pi}{3} \mathrm{rad}\right)$ is 0.050 m . What is the speed of the wave?

$25 \mathrm{~m} \mathrm{~s}^{-1}$

$75 \mathrm{~m} \mathrm{~s}^{-1}$

$150 \mathrm{~m} \mathrm{~s}^{-1}$

$300 \mathrm{~m} \mathrm{~s}^{-1}$

[Maximum number: 1]

Radio waves are emitted spherically from a source. At a distance d from the source the amplitude of the waves is X.

What is the amplitude at a distance 2 d from the source?

$\frac{x}{8}$

$\frac{X}{2}$

$\frac{X}{\sqrt{2}}$

[Maximum number: 1]

A wave is travelling on a string. The graphs show the variation of the displacement of the string with distance and the variation of the displacement of a particle on the string with time.

What is the speed of the wave?

$2.0 \mathrm{~cm} \mathrm{~s}^{-1}$

$2.5 \mathrm{~cm} \mathrm{~s}^{-1}$

$8.0 \mathrm{~cm} \mathrm{~s}^{-1}$

$10 \mathrm{~cm} \mathrm{~s}^{-1}$

[Maximum number: 1]

A wave is travelling on a string. The graphs show the variation of the displacement of the string with distance and the variation of the displacement of a particle on the string with time.

What is the speed of the wave?

$2.0 \mathrm{~cm} \mathrm{~s}^{-1}$

$2.5 \mathrm{~cm} \mathrm{~s}^{-1}$

$8.0 \mathrm{~cm} \mathrm{~s}^{-1}$

$10 \mathrm{~cm} \mathrm{~s}^{-1}$

[Maximum number: 3]

A longitudinal wave travels in a medium with speed $340 \mathrm{~ms}^{-1}$ . The graph shows the variation with time t of the displacement x of a particle P in the medium. Positive displacements on the graph correspond to displacements to the right for particle P .

(a)

Calculate the wavelength of the wave.

[ 2 ]

(b)

Another wave travels in the medium. The graph shows the variation with time t of the displacement of each wave at the position of P.

[ 1 ]

(i)

Identify a time at which the displacement of P is zero.

[ 1 ]

[Maximum number: 1]

A longitudinal wave moves through a medium. Relative to the direction of energy transfer through the medium, what are the displacement of the medium and the direction of propagation of the wave?

Displacement of medium

Direction of propagation of wave

parallel

perpendicular

parallel

perpendicular

parallel

perpendicular

[Maximum number: 1]

The graph shows the variation with time for the displacement of a particle in a travelling wave.

What are the frequency and amplitude for the oscillation of the particle?

Frequency / k H z

Amplitude $/ \boldsymbol{\mu} \mathbf{m}$

[Maximum number: 1]

A longitudinal wave is travelling through a medium. The variation with distance d of the displacement x of the particles in the medium at time t is shown.

Which point is at the centre of a compression?

[Maximum number: 1]

Which graph shows the variation of amplitude with intensity for a wave?

[Maximum number: 3]

The solid line in the graph shows the variation with distance x of the displacement y of a travelling wave at t=0. The dotted line shows the wave 0.20 ms later. The period of the wave is longer than 0.20 ms .

(a)

(i)

Calculate, in $\mathrm{m} \mathrm{s}^{-1}$ , the speed for this wave.

[ 1 ]

(ii)

Calculate, in Hz , the frequency for this wave.

[ 2 ]

0 selected

Question 11

Question 11

Question 11

Question 11

Question 2

Question 2(a)

Question 2(c)

Question 2(c)(ii)

Question 12

Question 12

Question 12

Question 12

Question 3

Question 3(a)

Question 3(a)(i)

Question 3(a)(ii)