Chapter # 3 Dynamics

Dynamics

Quiz

 

1. What is the force that opposes the motion of an object called?
   1.   Friction
   2.   Gravity
   3.   Tension
   4.   Normal force
2. Newton's First Law of Motion is also known as the law of:
   1.   Acceleration
   2.   Inertia
   3.   Action and Reaction
   4.   Gravitation
3. What is the unit of force in the SI system?
   1.   Joule
   2.   Newton
   3.   Pascal
   4.   Watt
4. Which of the following is an example of a vector quantity?
   1.   Speed
   2.   Mass
   3.   Force
   4.   Time
5. If the net force acting on an object is zero, the object will:
   1.   Accelerate
   2.   Remain at rest or move with constant velocity
   3.   Change its direction
   4.   Increase its mass
6. The acceleration of an object is directly proportional to the:
   1.   Mass of the object
   2.   Force acting on the object
   3.   For every action, there is an equal and opposite reaction.
   4.   The force of gravity acts on all objects.
7. What is the gravitational force between two objects dependent on?
   1.   Their masses and the distance between them
   2.   Their volumes and densities
   3.   Their temperatures
   4.   Their velocities
8. If the mass of an object is doubled while the force remains constant, the acceleration will:
   1.   Double
   2.   Halve
   3.   Remain the same
   4.   Become zero
9. What is the effect of increasing the force on an object if the mass remains constant?
   1.   Increase in acceleration
   2.   Decrease in acceleration
   3.   No change in acceleration
   4.   Decrease in mass
10. The tendency of an object to resist changes in its state of motion is called:
    1.   Inertia
    2.   Momentum
    3.   Energy
    4.   Power