Solutions to the WRITTEN QUESTIONS are to be found in the
unit answers link.

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The exact SAME QUESTIONS Along with DETAILED EXPLANATIONS
can be found here
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Exam Index Link by choosing the corresponding "STUDY GUIDE
VERSION"

Also all of the highlighted questions are repeated from the earlier homework questions to which the answers can be found here: homework1studyguide
.

Multiple Choice - Note: The questions on the "in-class" exam will be in different order, and the numbers will be changed. Identify the choice that best completes the statement or answers the question.

Suppose you are in a car that is going around a curve. The speedometer reads a constant 30 miles per hour. Which of the following is NOT true? EXPLANATIONs:

A train travels 6 meters in the first second of travel, 6 meters again during the second second of travel, and 6 meters again during the third second. Its acceleration is

A ball tossed vertically upward rises, reaches its highest point, and then falls back to its starting point. During this time the acceleration of the ball is always

Suppose a car is moving in a straight line and steadily increases its speed. It moves from 35 km/h to 40 km/h the first second and from 40 km/h to 45 km/h the next second. What is the car's acceleration?

When something falls to the ground, it accelerates. This acceleration is called the acceleration due to gravity and is symbolized by the letter g. What is the value of g on Earth's surface?

If a ball were equipped with a speedometer and allowed to fall freely on a planet where the acceleration due to gravity is 23 m/s^{2}, the reading on the speedometer would increase each second by

Unless stated otherwise, when we discuss the speeds of things, we mean with respect to the center of the universe.

Essay - Note: The exam will contain approximately 5 of the 12 questions shown below. Also the questions will be the same, but the numbers used will be different.

38.

Write a short paragraph explaining what acceleration is and why a car is accelerating as it rounds a corner.

39.

Write a short paragraph on how fast things fall on Earth. Compare this to motion on the moon, where the acceleration due to gravity is about 1.6 m/s^{2}.

Problem

40.

What is the average speed of a cheetah that runs 88 m in 5 seconds?

41.

A bicycle travels 15 km in 30 minutes. What is its average speed in km/hr?

42.

What is the average acceleration of a car that goes from rest to 60 km/h in 8 seconds?

43.

A jet on an aircraft carrier can be launched from 0 to 40 m/s in 2 seconds. What is the acceleration of the jet?

44.

A skateboarder starting from rest accelerates down a ramp at 2 m/s^{2 }for 2 s. What is the final speed of the skateboarder?

45.

An apple falls from a tree and 0.5 second later hits the ground. How fast is the apple falling when it hits the ground?

46.

What speed must you toss a ball straight up so that it takes 4 s to return to you?

47.

Starting from rest, a car undergoes a constant acceleration of 6 m/s^{2.}. How far will the car travel in the first second?

48.

A crate falls from a helicopter at an altitude of 1250 m. Neglecting air drag, how long will the crate take to strike the ground?

49.

A stone is dropped from a cliff. After it has fallen 10 m, what is the stone's velocity?