Rowad 1

9-A vehicle of mass 500Kg and another of mass 1500Kg are moving at the same acceleration ,  the force acting on the heavier vehicle will be …………the force acting on the less mass vehicle 

• equal to

• half 

• twice      

• three times

The ratio between the acting force on the body and the rate of change of its velocity is the ……………of the body  

• momentum 

• mass

• energy

• acceleration

when the mass of the body is doubled and its velocity is halved so the linear momentum is .....................

• doubled

• halved

• increases four times

• unchanged

The  opposite figure represents a body (x) of mass (m)that acts on it a force (F)to accelerate it a uniform acceleration (a) and another body (y)of mass( m)that acts on it a force of ( F)to accelerate it a uniform acceleration ……………………..

The unit that is equivalent to Kg.m.s^-1 is ………..

• N

• N.s 

• N/s 

• J.s  

The ratio between the acceleration of a body of mass 2kg to that of  a body of 4Kg when they move under the effect of the same force is …………

If the force acting on a body is doubled while its mass is decreased to its half ,then the acceleration of its motion ………………    

• decreases to its half 

• is doubled  

• increases four times  

• decreases to its quarter value

the force that affects an object of mass 30 Kg to speed it up from rest to 8m/s during 6s is ..................N

• 240

• 40

• 3.75

• 180

From the opposite graph .the acting force on the body equals …………….. N       

• 6

• 10

• 15

• 18

.....................is the rate of change of linear momentum

• acceleration

• mass

• velocity

• force