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WorksheetsHeat, Light and Sound
Total questions: 15
Worksheet time: 11mins
What is the direction of of heat transfer?
from hot to cold
from bottom to top
from cold to hot
from side to side
How is heat transferred in solid materials?
through convection
through radiation
through conduction
through vacuum
What happens to a liquid when heated?
it remains the same
it increases volume
it increases in temperature
it increases in water level
What may happen to a solid when it is continuously exposed to heat?
it may become heavier
it may decrease in volume
it may expand
it may melt
When heat is transferred through gases it is called______
convection
radiation
conduction
roasting
Light travels in a straight line when it passes through a single medium.
TRUE
FALSE
The light that strikes a thick cardboard bends and find another way to pass through it.
TRUE
FALSE
Light rays could not be blocked and they could pass through all types of materials since they travel on a straight line.
TRUE
FALSE
A laser is a narrow but powerful beam of light capable of travelling far distance on a straight line.
TRUE
FALSE
Optical fibers are used in communication, medicine and industry
TRUE
FALSE
When the sound travels through solids, the vibration of the particles occurs __________.
fast
slowly
moderately
irregularly
How sound travels through air?
vey fast
very slow
in jumping motion
fast in random manner
In which medium can sound wave travel faster?
solids
liquids
gases
all of these
What affects the speed of sound as it travels?
Person receiving it
the nature of material
the origin of the sound
loudness of the sound
Which of the following statements about sound is correct?
sound cannot travel through a solid
sound travel faster in liquid than in solids
sound travel faster in solids than in air
the travel of sound is not affected by the medium through which it travels.
