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WorksheetsMotion
Total questions: 11
Worksheet time: 4mins
All of the following are accompanied forces to motion except ...............
friction force
gravitational force
force of inertia
forces inside living systems
The inertia force affects the .............. objects.
moving
static
moving and static
no correct answer
all of the following are examples of inertia except ..................
once the car starts moving forward, the passengers are rushed back
passengers are rushed forward if the moving car stops suddenly
if a football player is tripped during running forward, he will rushed forward
the attracting of bodies to the earth
in which of the following examples, friction is considered a problem? ..........
burning a match
preventing feet from slipping during walking
using brakes
rising the temperature of mechanical machine parts
When two cars move in the same direction with a velocity 80 km/h., the driver of the first car imagines that the second car moves with velocity .......... km/h.
zero
80
160
100
In the periodic motion ..............
the pathway is straight
motion is regularly repeated
mass is regularly repeated
speed is regularly changed
All of the following are properties of sound waves except ..........
it is mechanical waves
it is produced due to vibration of medium particles
it needs a medium to travel
it travels through free space
We see lightning before hearing thunder because ............
lightning occurs before thunder
sound needs a medium to travel through
the speed of light is 340 m/sec
the speed of light is much greater than that of sound
The speed of both ............... in space equals 300 million m/sec
sound and light
X-rays and gamma rays
infrared rays and water waves
ultraviolet rays and sound waves
............ is among the applications of ultraviolet rays.
photographing bones
night vision apparatus
sterilizing of the sets of surgical rooms
discovering of some swellings
The speed of waves of X-rays in space is ......... the speed of waves of infrared rays.
doubled
less than
more than
equal to
