Which of the following cases show that an object is accelerating?

a. if the object changes speed

b. if the object changes direction

c. if the object changes both speed and direction

d. all cases mentioned


The base unit for acceleration is _____.

a. meter per second

b. meter

c. second

d. meter per second square

The formula for acceleration is _____. *

a. (Vf - Vi)/ t

b. (Vf + Vi)/ t

c. (Vi - Vf)/ t

d. (Vi x Vf)/ t

The following are TRUE about acceleration, EXCEPT: *

a. An object in motion can have negative acceleration

b. Acceleration is a vector quantity

c. Zero acceleration only means an object is at rest

d. Watching over the acceleration is an important road safety measure

Which of the following shows that an object is accelerating? *

a. A car maintains 60kph speed along the expressway

b. A grab driver moves 25 m/s and slows down to 5 m/s in 8 seconds to take the rotunda

c. A ball rolls on the floor in 8 seconds

d. A cyclist covered 4km ride in 2 hours.