Quiz on kinematics

what is the SI unit of average velocity

• m/s

• ms

• m/s²

• m/s³

acceleration is a ............................quantity

• scalar

• vector

• tensor

• none of the above

Tags

NGSS.HS-PS2-1

change of velocity is .....................................

• V_{f ^-} V_i

• V_I - V_f

• V_i + V_f

• V_f + V_i

Dimensional formula of acceleration is .......................

• [M⁰L²T³]

• [M¹L²T¹]

• [M⁰L¹T²]

• [M⁰L¹T^-2]

Tags

NGSS.HS-PS2-1

in case of uniform acceleration the path is a ........................

• straight line

• curved line

• parabola

• circular

• Average acceleration

• average velocity

• average speed

• uniform velocity

Tags

NGSS.HS-PS2-1

First Equation of motion is

• u = v + at

• v = u + at

• a = v + ut

• t = u + vt

Velocity changes if

• only when magnitude changes

• only when direction changes

• either magnitude or direction or both changes

• none of the these

Retardation is .......................

• increase in velocity

• decrease in velocity

• uniform speed

• zero speed

Tags

NGSS.HS-PS2-1

If the velocity of a moving abject is constant ,then the acceleration is.............

• non zero

• greater than zero

• zero

• less than zero