. A car accelerates from a standstill to 70 m/s in 10 seconds. What is the acceleration? a-0.7m/s2 b-7m/s2 c-14m/s2 d-none of the above
7m/s2
When are you undergoing an acceleration in a car? a-speed up b- slow down c-make turns d-All of the above
d-All of the above
Acceleration is defined as the CHANGE in ....................... time of motion to another place. a- velocity b-distance c-speed
Velocity
This body has an acceleration or zero acceleration and why ?
has an acceleration because it has a changing velocity
Sometimes a body moves with has zero acceleration.
Because this body moves with constant velocity
4-Determine the motion of the car. A-at rest b-speeding up C-moving at constant speed D-slowing down
b-speeding up
Changes in our speed, direction or both are called _________. a-gravity b-changes c-acceleration
acceleration
The change in velocity in on second
Acceleration
3-Acceleration is defined at a change in velocity. Velocity is ______ A-Speed and direction B-The same thing as speed C-distance/time D-time/distance
A-Speed and direction
True or False : Acceleration only takes place when things speed up.
False
The unit of measuring acceleration is .............................
m/s2 or Km/h2
initial v = 5 m/s, final v = 0 m/s, time is 20 seconds, what is a (acceleration) a-(0-5)/20 b-(5-0)/20 c-5/20 d-20/(5-0)
a-(0-5)/20