motion in one direction

Which of the graphs describes the movement of an object moves with acceleration

• 
• 
• 
• 

Tags

NGSS.MS-PS3-1

The uniform acceleration means that the object sped ....... by equal values through equal period of time.

• increase only

• decrease only

• increase & decrease

• doesn't change

the object moves at uniform speed when --------

• it moves at a constant acceleration

• it covers equal distance at unequal time

• it covers equal distance at equal time

• no correct answer

The shortest distance covered by a body in certain direction is called --------

• the distance

• the displacement

• the acceleration

• the speed

In case of motion that is described as movement at irregular speed , it is useful to refer to another term which is the ------- speed

• uniform

• scalar

• vector

• average

from the figure ., when an object moves from point ( a) to point ( b) , the displacement from (A ) to

( B ) equal ------

• 
  

  $10\sqrt{2}$

• 10

• 20

• 31.4

in the figure , a body starts its motion from point (A ) to ( B ) , it covers a distance 0f 40 m, then it is directed to the east to point ( C) which far 30 m apart

the length of the distance covered equals -------

• the length of AB

• the length of BC

• the length of AC

• the length of AB +BC

The ratio between the final speed and the initial speed of an object moving in a decelerating motion is --------

• more than one

• less than one

• equal one

• equal zero

If the relative speed of a car is 20 km /h relative to an observer moves at speed of 40 km/h , so the actual speed of this car is ---------- km / h

• 20

• 60

• 40

• 80

From the examples of the vector physical quantities is ------

• displacement

• mass

• time

• distance