Year 9 Looking for rhythms topic test

What is a rhythm?

• The aura that surrounds a particularly smelly pair of socks.

• The scientific term for how quickly you can tap your foot while reciting the alphabet backwards.

• It is regular change which repeats with time

• It's what your washing machine does when it's particularly angry at its spin cycle.

Waves transfer

• never energy but sometimes light

• energy and matter

• energy

• matter

The frequency of a wave is the number of

• cycles every half second per second

• full cycles per second measured in amps

• cycles per second measure in Hertz

• distance between wave crests measured in metres

What is the wavelength of a wave?

• Distance between two equal points on the wave measured in metres

• Distance between two equal points on the wave measured in cycles per second

• Distance between any two points on the wave measured in

  centimetres

• Distance between any two points on the wave

The amplitude of a wave equals the

• Wavelength of the wave
• Maximum displacement of a particle from its equilibrium position
• Speed of the wave
• Frequency of the wave

What is a transverse wave?

• A transverse wave is a wave in which the particles of the medium move parallel to the direction of the wave propagation.
• A transverse wave is a wave in which the particles of the medium move in a circular motion.
• A transverse wave is a wave in which the particles of the medium move perpendicular to the direction of the wave propagation.
• A transverse wave is a wave in which the particles of the medium do not move.

What is a compression/longitudinal wave?

• a type of wave where the particles of the medium move parallel to the direction of the wave propagation.

• a type of wave where the particles of the medium move in a circular motion.

• a type of wave where the particles of the medium remain stationary.

• a type of wave where the particles of the medium move perpendicular to the direction of the wave propagation.

The speed of a mechanical wave is affected by

• Medium properties such as density and elasticity
• Wave speed

• Wave amplitude
• Wave frequency

Waves cannot be reflected: True or False

• True
• Only sound waves
• Partially true
• False

Common examples of compression waves are

• Light waves and radio waves
• Sound waves and seismic waves
• Magnetic waves and gravitational waves
• Heat waves and ocean waves