Force and Motion Test Review

In order to determine speed, you must know

• only time

• only distance

• both time and distance

• neither time nor distance

Which of the following does not indicate velocity?

• 14 ft/s SSE

• 40 mi/h going from the town square along the main street

• 80 km/h going from New York toward New Jersey

• 28 miles from Los Angeles to Catalina Island

When an object slows down, its acceleration is

• positive

• negative

• centripetal

• constant

If the net force acting on a stationary object is zero, then the object will

• accelerate in the direction of the strongest force

• remain at rest

• begin moving backwards

• decelerate at a steady rate of speed

Displacement

• must be in a particular direction

• is the change in position of an object

• must be a straight line

• all of the above

The force of gravity, the electromagnetic force, the strong nuclear and weak nuclear force are considered

• centripetal force

• frames of reference

• resultant force

• fundamental force

On a speed vs. time graph, constant acceleration is represented by a

• straight line

• slightly sloped line

• jagged line

• steeply sloped line

The friction between the bristles of your toothbrush and the surfaces of your teeth is example of

• rolling friction

• static friction

• helpful friction

• all of these

On a distance vs. time graph of an object’s motion, distance is usually

• plotted on the x-axis

• greater than time

• the dependent variable

• measure in ft/min

Friction is defined as the

• force that opposes motion between two surfaces that are touching

• rate at which velocity changes

• resistance of an object to a change in its velocity

• speed of an object in a particular direction