The substances which reduce friction are called ...............
irregularities
lubricants
adhesives
viscous
B.
lubricants
The strength of a force is usually expressed by its...........
Motion
Direction
Interaction
Magnitude
If the speed of an object moving along a straight line keeps changing, its motion is said to be ...........
Uniform
Periodic
Circular
Non-uniform
In Microsoft excel, the................ () function returns the largest value among the values passed as arguments.
HIGHEST
MORE
HIGH
MAX
In the formula average velocity = (u+v)/2 u is the
final velocity
initial displacement
initial velocity
final displacement
If the speed of an object moving along a straight line is constant, its motion is said to be ..........
Uniform
Periodic
Circular
Non-uniform
If the mass of an object is 60 kgs, what will be its weight on the moon? (N = Newton)
60 N
600 N
100 N
10 N
If the force applied on the object is in the direction opposite to the direction of motion, the speed of the object __________.
increases
stops
decreases
no effect
The SI unit of acceleration is ..................
meters per second squared
meters persecond
seconds per meter
seconds per meter squared