Q.1
A _________is a device which receives energy and transforms it into some useful work.
  • force
  • structure
  • mechanism
  • machine
Q.2
It deals with the forces and their effects when the machine parts are at rest is ___________________.
  • statics
  • kinetics
  • kinematics
  • pair
Q.3
If a pinball machine launches a ball to a top speed ofm/s, with an acceleration ofm/s2 in a time of 0.seconds. What is the pinball's starting velocity (assume it is not zero)?
  • 19 m/s
  • 5 m/s
  • 22 m/s
  • 21 m/s
Q.4
A ball is launched from a spring on the floor with an initial velocity ofm/s. It then comes to a stop in 4.3 seconds. Determine the acceleration of the ball.
  • +12 m/s²
  • -7.4 m/s²
  • -12 m/s²
  • +7.4 m/s²
Q.5
If a car is traveling forward atm/s, how fast will it be going in 1.2 seconds if the acceleration is -m/s2?
  • 27 m/s
  • 3 m/s
  • -27 m/s
  • -3 m/s
Q.6
A ball is thrown downward from the top of a roof with a speed ofm/s. After 2 s, its velocity will be:
  • 19.6 m/s
  • -5.4 m/s
  • -44.6 m/s
  • 44.6 m/s
Q.7
A cheetah travelsm in 3 s. What is her velocity over the interval?
  • 225 m/s
  • 25 m/s
  • 0.04 m/s
Q.8
Vionni is jogging at a speed of 1.9 m/s, when she hears about a sale at the local heladería (ice cream shop). Vionni accelerates at a rate of 0.m/s2 for the nextseconds until she arrives at the shop. Find Vionni's final velocity.
  • 4.9 m/s
  • 2.0 m/s
  • 7.3 m/s
  • 0.13 m/s
Q.9
A sports car travels a distance ofmeters while attaining a certain top speed. If the car's acceleration ism/safter starting with a speed ofm/s, what would be the car's top speed?
  • 50 m/s
  • 150 m/s
  • 285 m/s
  • 170 m/s
0 h : 0 m : 1 s