# Chapter 10 Section 3 Quiz - Motion & Force (holt)

Quiz is from the Holt Chapter 10 resource file.

Changes are done, please start the quiz.

 1 Net force is
 A. The force acting in the same direction as an object's movement.
 B. The force acting in the opposite direction of an object's movement.
 C. The combination of all the forces acting on an object.
 D. The force of gravity pulling an object down.
 2 An object experiencing balanced forces
 A. Has a net force of zero.
 B. Is speeding up.
 C. Is slowing down.
 D. Stops moving.
 3 In a game of tug-of-war, one team pulls harder than the other and wins the game.  This is an example of
 A. Rolling friction.
 B. Air resistance.
 C. Streamlining.
 D. Unbalanced forces.
 4 Which is an example of static friction?
 A. Pulling a skier behind a boat
 B. Pushing a box that is at rest
 C. Breaking a car going down a hill
 D. Driving a car up a hill
 5 Which is not an example of sliding friction?
 A. Ice skating on a frozen pond
 B. Taking notes with a pencil
 C. Rolling a ball across a desk
 D. Pushing a book across a table
 6 In order to increase a car's speed, the force pushing it forward must be
 A. A negative force.
 B. Rolling friction.
 C. Equal to the force of friction.
 D. Greater than the force of friction.
 7 The friction between air and the surface of a moving object is
 A. Fluid friction.
 B. Rolling friction.
 C. Static friction.
 D. Molecular friction.
 8 Which is an example of harmful friction?
 A. Engine parts wearing down