.................it is the crashing of two objects with each other.
Motion
Collision
Energy
The fast objects cause a big harm during collision.
True
False
To avoid accident we shouldn’t ride the car with ............
high speed
low speed
The kinetic energy ..........by increasing the speed of object.
increase
decrease
not affected
Kinetic energy depends on _______
speed and mass
speed and direction
mass and direction
By increasing the mass the speed ________
decreases
increases
When an object crashes another one transfers some energy to it.
The slow rubber ball produce higher sound when it hits the racket more than the faster one.
The kinetic energy of the object depends on its_____
speed
energy
direction
The big vehicle causes ......... harms during the collision than the small one moves by the same speed
less
more
By increasing the mass of the object the kinetic energy_________
The truck needs engine ........... the car.
bigger than
smaller than
equal
The energy changes during collision from __________
kinetic to potential
kinetic to heat
potential to kinetic
If the speed increases to double the kinetic energy increases ____
six times
three times
four times
By increasing the mass of the object ____________
the harms of collision decreases
the kinetic energy decreases
the consuming of fuel increases.