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Worksheetsprep 3 , lesson 2
Total questions: 10
Worksheet time: 7mins
( Distance-Time) graph for a regular motion at a constant speed is represented by a.........
straight line parallel to time axis.
straight line parallel to the distance axis.
straight line passing through the origin point.
straight line cuts the time and the distance axis.
The uniform acceleration means that the object speed ...........by equal values through equal periods of time.
increases only
decreases only
increases or decreases
doesn't change
When an object speed increases, the movement is described as
uniform speed.
decelerating motion.
zero acceleration.
accelerating motion.
When an object moves with acceleration zero, this means that the
object's speed is changed.
object moves with positive acceleration.
object moves with deceleration.
object's speed is constant.
Decelerating motion means the...........
object speed decreases by time.
object speed is constant.
object speed increases by time.
object is at rest.
Acceleration is the
change in distance in a unit time.
change in speed in a unit time.
rate of change of distance relative to the speed.
change in the position relative to the observer.
the unit of acceleration is
(m/s2)
jouls
m
s
The rate at which an object changes position is called ..............
speed
Time
Distance
AAcceleration
An observer in a moving car with 80 km/h was observing a moving car with 90 km/h in the same direction, so the observed speed of the second car is ................. km/h.
10
80
90
170
displacment
