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JeopardyJeopardyJeopardyJeopardyPHY101
Chapter One Review
Cheryl Dellai
Study of Motion
Study of MotionPhysical
QuantitiesSpeed & Velocity
AccelerationTypes of Motion
Problems Potpourri
$100 $100 $100 $100 $100 $100
$200 $200 $200 $200 $200 $200
$300 $300 $300 $300 $300 $300
$400 $400 $400 $400 $400 $400
Physical Quantities
$100
Name 3 Basic
Physical Quantities
ANSWER
ANSWER
What are the three systems of measurement?
Physical Quantities
$200
What are the names of the exponents?
109 is _____ 106 is _____ 103 is _____
10-9 is _____ 10-6 is _____ 10-3 is _____
ANSWER
Physical Quantities
$300
ANSWER
Physical Quantities
$400
Name Standard Unit Definition
Length
Time
Mass
Complete the Following Table
Speed & Velocity $100
What difference between a scalar and a vector?
ANSWER
Speed & Velocity $200
ANSWER
What is the equation for average velocity?
What the units for speed or velocity?
Speed & Velocity $300
ANSWER
What is the difference between speed and velocity?
Speed & Velocity $400
ANSWER
What is the difference between average and instantaneous velocity?
Acceleration $100
ANSWER
What is the equation for average acceleration?
What are the units in each system?
Acceleration $200
ANSWER
What is centripetal acceleration?
Acceleration $300
ANSWER
What is local gravity on planet Earth?
Acceleration $400
ANSWER
What is the acceleration down a frictionless incline?
Types of Motion $100
What is zero velocity?
ANSWER
Types of Motion $200
ANSWER
What is meant by constant velocity?
Types of Motion $300
ANSWER
What is meant by constant acceleration?
Types of Motion $400
ANSWER
d vf vO a tvf = vO + at
d = ½*(vf +vO)t
d = vOt + ½at2
vf2 = vO
2 +2ad
ASSUME a is constant Check what is in the following equations.
Problems $100
ANSWER
A baseball is thrown vertically upward with a speed of 20.0 m/s. How long does it take to get to the top of its path?
Problems $200
ANSWER
What is the magnitude of a 30.0-N force and a 30.0-N force acting at right angles to each other?
Problems $300
ANSWER
A car traveling westward at 20 m/s turns around and travels eastward at 15 m/s. What is the change in velocity of the car?
a. 5 m/s west b. 35 m/s c. 35 m/s westd. 35 m/s east
Problems $400
ANSWER
What is the average acceleration of a ball that is thrown vertically upward on Vulcan with an initial speed of 40.0 m/s if it takes 4.00 s to return?
Potpourri $100
ANSWER
List the steps in the scientific List the steps in the scientific methodmethod
Potpourri $200
ANSWER
What are the four fundamental forces.
Potpourri $300
ANSWER
What is a period?
What is meant by frequency?
Potpourri $400
ANSWER
ASSUME g is constant Check what is in the following equations.
y vf vO g tvf = vO - gt
y = ½*(vf +vO)t
y = vOt - ½gt2
vf2 = vO
2 – 2gy
Physical Quantities$100
Answer
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•Mass
•Length
•Time
•Temperature
•Current
•Luminosity
•Mole
Name 3 BasicPhysical Quantities
Physical Quantities$200
Answer
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SI System International Metric System
cgs Older metric system
Common In use in USA
What are the three systems of measurement?
Physical Quantities$300
Answer
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What are the names of the exponents?
109 is Giga G 106 is Mega M 103 is kilo k
10-9 is nano n 10-6 is micro µ 10-3 is milli m
Physical Quantities$400
Answer
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Name Standard Unit Definition
Length Speed of LightC= 3.00 *108 m/s
meterm
Extension of space
Time Atomic Clock based on a Cs-133transition
seconds
Sequence of Events
Mass Pt-Ir cylinder in FranceC-12
kilogram kgu = 1.66*10-27 kg
Resistance to acceleration
Speed & Velocity $100Answer
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What difference between a scalar and a vector?
A scalar is a magnitude like one meter.
A vector has both a magnitude and direction like one meter pointing North. A vector is an ordered pair.
Speed & Velocity $200Answer
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What is the equation for average velocity?
vave = x/t
vave = ½(vO + vF) if a = constant
SI unit m/scgs unit cm/sCommon unit ft/s
Unit of length/Unit of time in general
Speed & Velocity $300Answer
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What is the difference between speed and velocity?
Speed is a magnitude and velocity is a vector.
Speed & Velocity $400Answer
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What is the difference between average and instantaneous velocity?
Average velocity is based on the total displacement/total time while instantaneous velocity is based on small increment of time t going to zero.
Acceleration $100
Answer
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What is the equation for average acceleration?
aave = v/t
SI unit m/s2
cgs unit cm/s2
Common unit ft/s2
Unit of length/Unit of time2 in general
Acceleration $200
Answer
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What is centripetal acceleration?
When an object moves in a circle, the acceleration that points to the center of the circle is called the centripetal acceleration.
vtangential = vt = 2(radius)/Period = 2r/T
acentripetal = ac = vt2/r
Acceleration $300
Answer
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What is local gravity on planet Earth?SI g =9.80 m/s² downcgs g =980 cm/s² downCommon g =32.2 ft/s² down
Acceleration $400
Answer
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What is the acceleration down a frictionless incline?
The acceleration is less than local gravity but greater than zero.
adown incline = gsin = g (height/length of incline)
length
height
Types of Motion $100
Answer
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What is zero velocity?
No motion
distance = d = constant v = 0 a = 0
0
1
2
3
4
5
6
0 5 10 15
Time in s
Dis
pla
ce
me
nt
in m
Types of Motion $200
Answer
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What is meant by constant velocity?
Constant motion distance = d = increasing or decreasing
v = constant a = 0 0
20
40
60
80
100
120
140
0 5 10 15
Time in s
Dis
pla
ce
me
nt
in m
Types of Motion $300
Answer
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What is meant by constant acceleration in a straight line?
The object’s velocity is changing at a fixed rate. velocity = v = increasing or decreasing
a = constant
0
20
40
60
80
100
120
140
160
0 5 10 15
Time in s
Dis
pla
ce
me
nt
in m
Types of Motion $400
Answer
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ASSUME a is constant Check what is in the following equations.
d vf vO a tvf = vO + at X X X X
d = ½*(vf +vO)t X X X X
d = vOt + ½at2 X X X X
vf2 = vO
2 +2ad X X X X
Problems $100Answer
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A baseball is thrown vertically upward with a speed of 20.0 m/s. How long does it take to get to the top of its path?
Let gravity be g = 9.8 m/s² down
vf = 0 = vO – gt
t = vO / g = 2.04 s
Problems $200Answer
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What is the magnitude of a 30.0-N force and a 30.0-N force acting at right angles to each other?
30.0 N 30.0 N Net Force =42.4 N
Problems $300Answer
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A car traveling westward at 20 m/s turns around and travels eastward at 15 m/s. What is the change in velocity of the car?
d. 35 m/s east
Let east be + Let west be –
v = vf – vO = 15 m/s - (-20 m/s) = 35 m/s east
Problems $400Answer
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What is the average acceleration of a ball that is thrown vertically upward on Vulcan with an initial speed of 40.0 m/s if it takes 4.00 s to return?
Time up is 2.00 s Time down is 2.00 s
Using time up t = 2.00s
vf = 0 = vO + at a = -vO /t = -(40.0 m/s)/(2.00 s) = -20 m/s²
Local gravity on Vulcan is 20 m/s² down
Potpourri $100Answer
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List the steps in the scientific methodList the steps in the scientific method
1. Recognize the problem or observe event.1. Recognize the problem or observe event.2. Hypothesis “Guess”.2. Hypothesis “Guess”.3. Predict.3. Predict.4. Devise and perform experiment.4. Devise and perform experiment.5. Develop theory (data base analysis5. Develop theory (data base analysis). ).
Potpourri $200Answer
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What are the four fundamental forces.
1. Strong nuclear forces
2. Electromagnetism
3. Weak nuclear forces
4. gravity
Potpourri $300Answer
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What is a period?T = Time to complete one circle in seconds
What is meant by frequency?f =1/T Units in Cycles/s or Hertz
Potpourri $400Answer
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ASSUME g is constant Check what is in the following equations.
y vf vO g tvf = vO - gt X X X X
y = ½*(vf +vO)t
X X X X X
y = vOt -½gt2 X X X X
vf2 = vO
2 -2g y X X X X
Thank You for playing Study of Motion Jeopardy!