Exam 2: Motion

Average speed multiplied by time gives

If the instantaneous velocity of an object is constant, then so is its

The SI unit of centripetal acceleration is ______________. ​

Speed is a(n) ______________ quantity.

A speedometer registers ______________.

The straight-line distance and direction between two points are, together, called

A rock dropped down a well takes 1.8 s to hit the water. How far below the top of the well is the surface of the water?

If the speed of an object in circular motion is increased by a factor of 3, its centripetal acceleration for the same radius will be multiplied by a factor of

In free fall, the ______________ is constant.

Distance is a(n) ______________ quantity.

Two objects are in uniform circular motion at the same speed but at different radii. The one with the ______________ radius has the largest centripetal acceleration.

The centripetal acceleration of an automobile in uniform circular motion on a flat circular track is supplied by ______________.

A speedometer indicates ______________ if the automobile is traveling forward.

A car travels at a constant speed of 95.0 km/h around a circular track with a diameter of 1.00 km. What is the magnitude of the car's centripetal acceleration, and what supplies this?

For which of the following is the acceleration constant?

When running and jumping to score, a basketball player seems to "hang" in the air because

Displacement divided by time gives

In the equation a_c= v²/r for centripetal acceleration, the v stands for

Centripetal means

Temperature is an example of a(n) ______________ quantity.