Waves
The number of waves per second
Frequency
Sound wave type is a _____ wave?
Longitudinal
Electromagnetic wave type is a _____ wave?
Transverse
Air to Glass, a light ray bends _____________ the normal
Toward
Type of lens where light rays come together
Convex (converging)
The distance between the crest and rest position of a wave
Amplitude
Sound travels fastest in which state of matter
SOLIDS
EM wave type used for MOBILE PHONES
Microwave
Light travels slower in glass than air because GLASS is:
Denser (allow SOLID)
Type of heating in solids
Conduction
The time for one wave to occur
Period
An increase in pitch is an increase in a sound wave's...
Frequency
EM wave with the highest frequency
Gamma
Water to Air, a light ray bends _____________ the normal
Away
Type of lens where light rays spread out
concave (diverging)
Type of wave where the displacement is perpendicular to the wave propagation
Transverse
An increase in volume is an increase in a sound wave's....
Amplitude
EM wave type used for STERILISING EQUIPMENT
Ultraviolet
Speed of Light is:
A. 300 m/s
B. 300 000 m/s
C. 300 000 000 m/s
C 300 000 000 m/s
Type of heating in liquids
Convection
Wavespeed =
Frequency x Wavelength
What is the speed of sound in air?
330 m/s (allow 300-350 m/s)
Arrange in order of increasing energy: Radio, UV, Visible
Radio, Visible, UV
Time for light to travel from the Sun to Earth
A 6.5 minutes
B. 8.5 minutes
C. 10.5 minutes
B. 8.5 minutes
The reason black cars heat up faster than white cars
Black absorbs all colours in visible light