MOTION QUEST
------------

What is shown by a graph of distance versus time?
acceleration inertia momentum *speed

What is shown by a graph of velocity (speed) versus time?
*acceleration inertia momentum speed

Q. Reinforce understanding of potential & kinetic energy in relation to
objects rolling down acceleramp(c). [Show VA SOL graphic:
http://www.wsanford.com/~wsanford/gr8ps/red/VA_SOL_Graphics/0470.gif]
A. potential energy (left skateboarder); kinetic energy (right
skateboarder)

Q. What is the location on the track where the train has the 
<B>greatest</B> potential energy? - [Show VA SOL graphic:
http://www.wsanford.com/~wsanford/gr8ps/red/VA_SOL_Graphics/2990.gif 
(Caption: A train rolling down a hill.)]
A. No. 1 (of 4 locations)

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Google Search: "physical science" + motion + quiz or test

Test Review Sheet: Motion
http://staff.harrisonburg.k12.va.us/~gcorder/motnrev.html

A car travels 100 kilometers in 50 minutes.  What is it's average velocity?

   Average velocity = total distance / total time 
                    = 100 km / 50 min 
                    = 2 km/min 
   Answer: avg vel. = 2 km/min 

--
Physical Science: Motion, Forces, and Energy, Book M
Chapter Review Quizzes
http://glencoe.mcgraw-hill.com/sites/0078617707/student_view0/
chapter_review_quizzes.html
[See also left sidebar, click on "Math Practice"]

Chapter 1: Motion and Momentum

When something accelerates then stops accelerating, what happens to the 
object?
A) slows 
B) stops completely 
C) goes faster 
*D) continues to move at a constant velocity 

When a negative acceleration is graphed, the line __________.
A) slopes upward 
B) goes to zero 
*C) slopes downward 
D) remains constant 

The __________ measures the speed during an entire trip.
A) overall speed  <-- instantaneous acceleration
B) instantaneous speed 
*C) average speed 
D) acceleration 

An object that travels 100 m in 20 s has what speed?
What is the speed of an object that travels 100 m in 20 s? [Edited]
*A) 5 m/s 
B) 2 000 m/s 
C) 50 m/s 
D) 200 m/s 

Something is in motion if it __________.
A) changes state 
B) changes properties 
C) changes distance <-- need a better choice
*D) changes position 

When something slows, its acceleration is __________.
A) constant 
B) positive 
C) instantaneous 
*D) negative

What is the tendency for an object to resist change in its motion?
A) momentum 
B) matter 
*C) inertia 
D) mass 

To find acceleration, you first subtract __________ then divide by time.
A) velocity from distance 
B) final time from initial time 
*C) initial speed from final speed
D) final speed from initial speed 

__________ is distance divided by time.
A) Velocity 
B) Acceleration 
C) Displacement 
*D) Speed 

The mathematical equation for momentum is __________.
A) momentum = mass/velocity 
*B) momentum = mass x velocity 
C) momentum = velocity/mass 
D) momentum = weight x speed 

BONUS
When a car goes around a curve at 20 mph (32.2 km/hr), the __________ 
changes.
A) average speed 
B) speed 
*C) velocity 
D) instantaneous speed 

An object that has the same speed but changes direction is __________.
A) speeding 
B) displacing 
*C) accelerating 
D) slowing down

--
On an acceleration graph in which the line is level, the acceleration is 
__________.
A) positive 
*B) zero <-- v(last) - v(first) = 0; 0 / any # = 0 
C) changing 
D) negative 

At the beginning of a track race, the instantaneous speed of all runners 
is __________.
A) unable to be measured 
B) the average speed 
*C) 0 m/s 
D) different 

What are the SI units for acceleration?
A) s/m2 
B) m2/s 
*C) m/s2 
D) s2/m 

What is a measure of how hard it is to stop a moving object?
*A) momentum 
B) inertia 
C) velocity 
D) acceleration 

When you graph speed, time is on the __________.
*A) x-axis 
B) z-axis 
C) y-axis 
D) vertical axis 

--
Chapter 2: Force and Newton's Laws

__________ is a force that resists motion between two surfaces that are in 
contact.
*A) Friction 
B) Acceleration 
C) Inertia 
D) Resistance 

Which of the following statements is true?
A) When speed increases gradually, average speed and instantaneous speed 
are the same. 
B) An object does not accelerate if it turns and maintains constant 
speed. 
C) Velocity of a moving object is the distance traveled divided by the 
time needed to travel the distance. <-- True if one assumes v & s are same
*D) If a moving object slows down, it is accelerating. 

The strength of the gravitational force between two objects depends on 
which of the following?
A) the mass of the larger object 
*B) the mass of the objects and the distance between them 
C) the velocities of the objects 
D) the orbits of the objects 

A change in motion is described by __________.
A) speed 
B) inertia 
*C) acceleration 
D) net force 

BONUS
Which of the following is not an acceleration?
A) stopping your bike at an intersection 
*B) riding your bike straight down the street at a constant speed 
C) riding your bike faster when you head down a hill 
D) slowing your bike ride so you can make it up a hill 

Newton's second law of motion states that __________.
A) an object will remain at rest or keep moving in a straight line with 
constant speed unless a force acts on it 
B) the force on an object can be found by dividing its mass by its 
acceleration 
*C) acceleration is calculated by dividing the force exerted on an object 
by the mass of the object, and that when a force acts on an object, its 
acceleration is in the same direction as the force 
D) when a force is applied on an object, there is an equal force applied 
by the object in the opposite direction 

Newton's first law of motion states that __________.
A) when a force is applied on an object, there is an equal force applied 
by the object in the opposite direction 
B) when a force acts on an object, its acceleration is in the same 
direction as the force 
*C) an object will remain at rest or keep moving with a constant velocity 
unless a force acts on it 
D) acceleration is calculated by dividing the force exerted on an object 
by the mass of the object 

When unbalanced forces act on an object, __________.
*A) the object accelerates 
B) friction becomes greater than the net force 
C) the object speeds up 
D) the net force is zero 

--
Math Practice
Chapter 1: Motion and Momentum
Solve a Simple Equation

Calculate the speed of a swimmer who swims 150 m in 88 s.
*A) 1.7 m/s 
B) 1.1 m/s 
C) 1.9 m/s 
D) 2.0 m/s 

Calculate the speed of a swimmer who swims 200 m in 140 s.
*A) 1.4 m/s 
B) 1.0 m/s 
C) 1.8 m/s 
D) 1.9 m/s 

In a 150-m race, a runner finishes in 18.2 s. Calculate the [average] 
speed of this runner.
*A) 8.2 m/s 
B) 7.7 m/s 
C) 8.9 m/s 
D) 10.2 m/s 

In a 500-m race, a runner finishes in 80.4 s. Calculate the [average] 
speed of this runner.
A) 6.2 m/s 
B) 7.8 m/s 
C) 4.5 m/s 
D) 9.0 m/s 

[better good ques]
In a 150-m race, a runner finishes in 18.2 s; in a second 200-m race he
finishes in 29.9 s. In which race was his [average] speed faster?
*A) first race 
B) second race 
C) neither race 
D) both races were the same speed 

[good ques]
In a 150-m race, a runner finishes in 18.2 s; in a second 100-m race he
finishes in 12.3 s. In which race was his [average] speed faster?
*A) first race 
B) second race 
C) neither race 
D) both races were the same speed 

A freight train travels from Louisburg to Hamburg, a distance of 420 km. 
If the route takes 6.2 h, what is the train's [average] speed? 
*A) 67.7 km/h 
B) 55 km/h 
C) 63.2 km/h 
D) 72.2 km/h 

A freight train travels from Miamistown to Fredericksburg, a distance of 
680 km. If the route takes 12.2 h, what is the train's [average] speed? 
*A) 55.7 km/h 
B) 66.3 km/h 
C) 68.8 km/h 
D) 82.2 km/h 

A passenger train travels from Larkspur to Collossett, a distance of 210 
km. If the route takes 2.4 h, what is the train's [average] speed? 
*A) 87.5 km/h 
B) 42.3 km/h 
C) 60.3 km/h 
D) 90.0 km/h 

A passenger train travels from Orange Grove to Lyman, a distance of 430 
km. If the route takes 5.6 h, what is the train's [average] speed? 
*A) 76.8 km/h 
B) 72.2 km/h 
C) 80.4 km/h 
D) 92.8 km/h 

--
Math Practice
Chapter 1: Motion and Momentum
Acceleration

Calculate the acceleration of a bus whose speed changes from 7 m/s to 16 
m/s over a period of 5 s. 
*A) 1.8 m/s2 
B) 0.6 m/s2 
C) 1.2 m/s2 
D) 2.2 m/s2 
 
Calculate the acceleration of a bus whose speed changes from 10 m/s to 12 
m/s over a period of 6 s. 
*A) 0.3 m/s2 
B) 0.6 m/s2 
C) 1.2 m/s2 
D) 0.8 m/s2 
 
Find the acceleration of a train whose speed increases from 9 m/s to 22 
m/s in 160 s. 
*A) 0.8 m/s2 
B) 0.6 m/s2 
C) 1.0 m/s2 
D) 1.4 m/s2 
 
Find the acceleration of a train whose speed increases from 12 m/s to 22 
m/s in 110 s. 
*A) 0.09 m/s2 
B) 0.02 m/s2 
C) 0.9 m/s2 
D) 1.2 m/s2 
 
Find the acceleration of a train whose speed increases from 11 m/s to 15 
m/s in 60 s. 
*A) 0.07 m/s2 
B) 0.02 m/s2 
C) 0.09 m/s2 
D) 0.1 m/s2 
 
A bicycle speed changes from 1 m/s to 5 m/s in 3 s. What is the bicycle's 
acceleration? 
*A) 1.3 m/s2 
B) 0.9 m/s2 
C) 1.1 m/s2 
D) 1.5 m/s2 
 
A bicycle speed changes from 2 m/s to 7 m/s in 4.2 s. What is the 
bicycle's acceleration? 
*A) 1.2 m/s2 
B) 0.9 m/s2 
C) 1.5 m/s2 
D) 1.9 m/s2 
 
A bicycle speed changes from 3.5 m/s to 6.5 m/s in 6 s. What is the 
bicycle's acceleration? 
*A) 0.5 m/s2 
B) 0.8 m/s2 
C) 1.2 m/s2 
D) 1.5 m/s2 
 
A car accelerates from rest to 30 km/s in 4.2 s. What is the car's 
acceleration? 
*A) 7.1 km/s2 
B) 5.2 km/s2 
C) 8.0 km/s2 
D) 8.2 km/s2 
 
A car accelerates from rest to 40 km/s in 4.9 s. What is the car's 
acceleration? 
*A) 8.2 km/s2 
B) 7.2 km/s2 
C) 8.8 km/s2 
D) 9.0 km/s2 

--
Math Practice
Chapter 1
Calculating Momentum (10 problems)

--
Math Practice
Chapter 2: Force and Newton's Laws
Solving a Simple Equation

A net force of 2500 N acts on an African male elephant with a mass of 7000 
kg. What is the acceleration of the African male elephant? 
*A) 0.36 m/s2 
B) 0.30 m/s2 
C) 0.25 m/s2 
D) 0.22 m/s2 
 
A physics book with a mass of 2.8 kg is pushed along a table with a net 
force of 1 N. What is the book's acceleration? 
*A) 0.36 m/s2 
B) 0.32 m/s2 
C) 0.25 m/s2 
D) 0.28 m/s2 
 
A net force of 2400 N acts on an African female elephant with a mass of 
3600 kg. What is the acceleration of the African female elephant? 
*A) 0.67 m/s2 
B) 0.55 m/s2 
C) 0.45 m/s2 
D) 0.42 m/s2 
 
A football with a mass of 0.43 kg has a net force of 0.8 N acting on it. 
What is the football's acceleration? 
*A) 1.86 m/s2 
B) 2.23 m/s2 
C) 1.75 m/s2 
D) 2.28 m/s2 
 
A net force of 2600 N acts on an Asian male elephant with a mass of 5400 
kg. What is the acceleration of the Asian male elephant? 
*A) 0.48 m/s2 
B) 0.45 m/s2 
C) 0.58 m/s2 
D) 0.40 m/s2 
 
A penny with a mass of 0.003 kg is pushed along a table with a net force 
of 1 N. What is the penny's acceleration? 
*A) 333.33 m/s2 
B) 3.25 m/s2 
C) 350 m/s2 
D) 250.25 m/s2 
 
A net force of 2450 N acts on an Asian female elephant with a mass of 4160 
kg. What is the acceleration of the Asian female elephant? 
*A) 0.59 m/s2 
B) 0.65 m/s2 
C) 0.72 m/s2 
D) 0.83 m/s2 
 
A bowling ball with a mass of 4.5 kg has a net force of 1.5 N acting on 
it. What is the bowling ball's acceleration? 
*A) 0.33 m/s2 
B) 0.66 m/s2 
C) 1.25 m/s2 
D) 1.00 m/s2 
 
A baseball with a mass of 0.145 kg has a net force of 1.2 N acting on it. 
What is the baseball's acceleration? 
*A) 8.28 m/s2 
B) 9.95 m/s2 
C) 10 m/s2 
D) 8 m/s2 
 
A bowling ball with a mass of 7.3 kg has a net force of 1.5 N acting on 
it. What is the bowling ball's acceleration? 
*A) 0.21 m/s2 
B) 0.25 m/s2 
C) 0.55 m/s2 
D) 1.25 m/s2

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