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WorksheetsScience FT#2 Quiz
Total questions: 20
Worksheet time: 13mins
An echo-sounder on a ship produces a pulse of sound. The echo is received by the echo-sounder after two seconds. The speed of sound in sea-water is 1500m/ s. What is the depth of the sea-water below the ship?
750 m
1500 m
3000 m
2000 m
Sound waves are also known as ----- waves.
Compression
Longitudinal
Neither
Both longitudinal and compression
True or False: Sound waves are faster than light.
False
True
Areas of increased pressure on a sound wave are known as a ----
Rarefaction
Compression
Frequency
Amplitude
The number of wavelengths that pass a fixed point each second is known as ----
Hertz
Amplitude
Frequency
The unit for measuring frequency is the ---
Joule
Hertz
Gram
Newton
The measure of the amount of energy in a wave is ----
Wavelength
Hertz
Frequency
Amplitude
Sound waves travel the fastest through ---
Liquids
Gases
Solids
The smallest particle into which an element can be divided and still be the same element is a(n)
proton
neutron
electron
atom
Which subatomic particle has a positive charge?
proton
nuetron
electron
atom
Which TWO of the following subatomic particles are inside the nucleus?
protons
electrons
neutrons
There are no subatomic particles in the nucleus of an atom.
The number of which subatomic particle determines the element of an atom (if it's carbon, oxygen, nitrogen, etc.)?
proton
neutron
electron
Subatomic particles do no determine the element of an atom.
How many protons does fluorine have?
19
1
9
10
How many neutrons does nitrogen have?
7
14
0
6
