OCR Gateway GCSE Physics A topic P5 Waves in matter overview quiz quiz

They are at right angles to the direction of travel

They run exactly parallel to the direction of travel

There are no oscillations of any kind in the medium

They move in tight circles around the direction of travel

Frequency divided by wavelength

Frequency times wavelength

Wavelength divided by frequency

Amplitude times frequency

Gamma, X-rays, ultraviolet, visible, infrared, microwaves, radio

Radio, infrared, microwaves, visible, X-rays, ultraviolet, gamma

Radio, microwaves, infrared, visible, ultraviolet, X-rays, gamma

Visible, radio, microwaves, infrared, ultraviolet, X-rays, gamma

They travel much faster than radio waves do through empty space

They are far louder and more intense than any ordinary radio waves could ever be

They are simply unable to pass through any part of the human body

They carry much more energy and are ionising, so they can damage cells and DNA

It slows down and bends towards the normal

It speeds up and bends away from the normal

It stays the same speed and direction

It stops

The angle of incidence is always exactly twice the angle of reflection

The angle of incidence equals the angle of reflection, measured from the normal

Light striking any surface always reflects straight back along the path it came in on

The angle of reflection depends only on the colour of the incoming light

Only a virtual, upright image that cannot be projected

No image at all, since the rays never meet anywhere

A real, inverted image that can be projected onto a screen

A virtual image the same way up but much larger than the object

It simply travels far too fast to cross an empty vacuum

It is a transverse wave and so cannot enter a vacuum

A vacuum is always far too cold to let any sound waves move through it

There are no particles to vibrate and pass the energy along

Sound with a frequency above 20 000 hertz, the upper limit of human hearing

Sound with a frequency below 20 hertz, beneath normal human hearing

Any very loud sound that is well above a safe listening level

A special kind of sound that is somehow able to travel right through a vacuum

600 metres

300 metres

1200 metres

150 metres