Science Test Flashcards 1
What type of wave is a sound wave?
Longitudinal wave
Write the equation that links wave speed, wavelength, and frequency
Wave speed = wavelength x frequency
What type of wave is an X Ray
Transverse wave
What is wave speed measured in?
Metres per second (m/s)
What is wavelength measured in?
Metres (m)
What is frequency measured in?
Hertz (Hz)
What is the direction of energy transfer in a transverse wave?
Perpendicular to the wave
What is the direction of energy transfer in a transverse in a longitudinal wave?
Parallel to the wave
Longitudinal waves are made up of what characteristics?
Rarefactions and compressions
What is the relationship between frequency and wavelength?
As frequency increases wavelength decreases
Frequency is defined as…
The number of waves passing a point every second
In an exothermic reaction, energy is transferred to, or absorbed from, the surroundings.
Transferred to the surroundings
In an endothermic reaction, energy is transferred to, or absorbed from, the surroundings
Absorbed from the surroundings
Complete the following word equation: Iron + Oxygen = ……………
Iron + oxygen = iron oxide
True or false: mass is conserved in a chemical reaction?
True
