5 Written Questions

1. ??? is the rate at which velocity changes. It involves increasing speed, decreasing speed, or changing direction.
2. the amount of matter in an object
3. If an object's speed varies, then dividing the distance by time gives you the object's ???
4. a push or pull
5. a place or object used for comparison to determine if an object is in motion

5 Matching Questions

1. balanced
2. friction
3. International System of Units (SI)
4. unblanced
5. Inertia

1. a ??? forces change the motion of an object
2. b a system of measurement based on multiples of ten
3. c the tendency of a object to resist a change in its motion
4. d ??? forces do NOT change the motion of an object
5. e a force that one surface exerts on another when they rub against each other

5 Multiple Choice Questions

1. equal forces acting on an object in opposite directions
   1. Net force
   2. Balanced forces
   3. Unbalanced forces
   4. balanced
2. When you state both the speed of an object and the direction in which it is moving, you are describing the object's ???
   1. Gravity
   2. object's velocity
   3. Velocity
   4. Reference point
3. the force that one surface exerts on another when the two rub against each other
   1. Friction
   2. Force
   3. Motion
   4. Gravity
4. the basic SI unit of length
   1. Speed
   2. Motion
   3. Meter
   4. Mass
5. the state in which one object's distance from another object is changing
   1. Force
   2. Motion
   3. Meter
   4. Friction

5 True/False Questions

1. gravity → speed in a given direction

   True        False

2. Unbalanced forces → a nonzero net force, which changes and object's motion

   True        False

3. Acceleration → the state in which one object's distance from another object is changing

   True        False

4. Air resistance → If an object moves at constant speed, its speed can be determined by dividing the ???? it travels by the time taken.

   True        False

5. net force → The sum of all the forces acting on an object

   True        False