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Today’s Categories Scalar or Vector What Are the Units? Finish the Formula… “Free Fallin’” “g” The Answer is 4.9 Regular Jeopardy
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Physics – ReviewLinear Motion
It’s time to play…
Physics Jeopard
y
Rules for the GameWhen it is your team’s turn, select a category and an amount.
After Mr. Dillon has finished asking the question, any team may buzz in. If you buzz in early, you will not be called on.If the team that buzzes in answers correctly, they get those
points and choose the next category. If the team answers incorrectly, they lose the points. Mr.
Dillon will then re-read the question so the other teams can have a chance to answer. A team is NOT obligated to
answer if they do not want to.There will be a Final Jeopardy question at the end of the
game where teams can wager the points they have earned.
Any questions?
Today’s Categories
Scalar or VectorWhat Are the Units?Finish the Formula…
“Free Fallin’”“g”
The Answer is 4.9
Regular Jeopardy
Scalar or Vector
What are the Units?
Finish the Formula…
100 100 100200 200 200300 300 300400 400 400500 500 500
“Free-Fallin’” “g” The Answer is 4.9
100 100 100200 200 200300 300 300400 400 400500 500 500
Go to Final JeopardyGo to Double Jeopardy
100 Points
SpeedScalar Quantity
Back to Game Board
200 Points
VelocityVector Quantity
Back to Game Board
300 Points
DistanceScalar Quantity
Back to Game Board
400 Points
Displacement
Vector Quantity
Back to Game Board
500 Points
Acceleration
Vector Quantity
Back to Game Board
100 PointsThis unit is the typical SI
(metric) unit for distance.
Meter (m)
Back to Game Board
200 PointsThis is an example of a
unit for speed.
Meters per second (m/s)
Back to Game Board
300 PointsThis unit is the typical SI
(metric) unit for displacement.
Meters (m)
Back to Game Board
400 PointsThis is an example of a
unit for velocity.
Meters per second (m/s)
Back to Game Board
500 PointsThis is an example of a unit for acceleration.
Meters per second per second (m/s2)
Back to Game Board
100 PointsAverage Velocity: v = …
or
Back to Game Board
tdv
2fi vvv
200 PointsFinal Velocity: vf = …
Back to Game Board
atvv if
300 PointsAcceleration: a = …
Back to Game Board
tvv
tva if
400 PointsDistance: d = …
Back to Game Board
2
21 tatvdd ii
500 PointsFinal VelocitySquared: vf
2 = …
Back to Game Board
davv if 222
100 PointsThis is the band that is famous for recording
the song: “Free Falling.”
Tom Petty and the Heartbreakers
Back to Game Board
200 PointsThis is how the main line of the chorus goes… (be
sure to sing it to get your points.)
Now I’m free… Free fallin’.
Back to Game Board
300 PointsAccording to the lyrics,
“She’s a good girl…She’s crazy about…”
this person.Elvis
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400 PointsAccording to the lyrics, you need to “move west down…” this boulevard.
Ventura
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500 PointsThis is the Tom Cruise
movie where his character sings “Free Falling” …significantly
off key…Jerry McGuire
Back to Game Board
100 PointsThis is the value of “g” in meters/second2 on
Earth.
9.8 m/s2
Back to Game Board
200 PointsThis is the value of “g”
in feet/second2 on Earth.
32 ft/s2
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300 PointsThis is the quantity that the constant “g” stands
for.
Acceleration Due to Gravity
Back to Game Board
400 PointsTrue or False: Gravity
on Earth accelerates all objects in the same way.
True
Back to Game Board
500 PointsThis is usually the
primary cause of why objects in free fall do
not always accelerate at 9.8 m/s2. Air Resistance
Back to Game Board
100 PointsThis is half of “g” on
Earth.
4.9 m/s2
Back to Game Board
200 PointsThis is how far you
would travel during the first second of free fall
on Earth.4.9 meters
Back to Game Board
300 PointsThis is your acceleration
down a ramp that is inclined at a 45 angle
(assuming no friction). 4.9 m/s2
Back to Game Board
400 PointsThis is your average
speed during the first second of free fall on
Earth.4.9 m/s
Back to Game Board
500 PointsSimplify:
4.9
Back to Game Board
75.025.020162662
Today’s Categories
“Free Fallin’” for RealGraph This
Begins with “D”Constant Velocity?Vocab Schmocab
Solve This
Double Jeopardy
“Free-Fallin’” for Real Graph This Begins with
“D”200 200 200400 400 400600 600 600800 800 8001000 1000 1000
Constant Velocity?
Vocab Schmocab Solve This
200 200 200400 400 400600 600 600800 800 8001000 1000 1000
Go to Final Jeopardy
200 PointsAn object in free-fall is technically only being
acted on by this.
Gravity
Back to Game Board
400 PointsThis is value of “g” on
Earth.
9.8 m/s2
Back to Game Board
600 PointsAfter the first second of free-fall, an object will
be moving this fast (assuming no air
resistance).9.8 m/s
Back to Game Board
800 PointsAfter the first second of free-fall, an object will be accelerating at this rate (assuming no air
resistance).9.8 m/s2
Back to Game Board
1000 PointsSuppose that a feather and a
brick are released from rest at the same time and from the
same height. This object will hit the ground first (assuming
no air resistance).They will hit at the same time.
Back to Game Board
200 PointsOn a position (or
distance or displacement) versus time graph, the slope tells you about this.
Speed or Velocity
Back to Game Board
400 PointsOn a velocity (or speed) versus time graph, the slope tells you about
this.Acceleration
Back to Game Board
600 PointsOn a velocity (or speed) versus time graph, the area “under the curve”
tells you about this.Distance or Displacement
Back to Game Board
800 PointsOn a position (or
distance or displacement) versus
time graph, the sign of the slope tells you about
this.Direction
Back to Game Board
1000 PointsBased on the graph below, what is the acceleration, velocity, and
totaldisplacement
at t = 6 seconds?a = 0 m/s2;
v = 20 m/s; d = 80 m
Back to Game Board
200 PointsThis is how far an object travels, but direction is
not important.
Distance
Back to Game Board
400 PointsThis is how far an object
ends up from it’s original starting point
(direction is important).Displacement
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600 PointsThis is the primary
difference between a scalar quantity and a
vector quantity.Direction
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800 PointsGravity always acts in
this direction.
Down
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1000 PointsThis is another word for a negative acceleration.
Deceleration
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200 PointsConstant velocity?
Moving at the same speed and in the same
direction.Yes.
Back to Game Board
400 PointsConstant velocity?
Increasing your speed.
No.
Back to Game Board
600 PointsConstant velocity? An
object experiencing free fall.
No.
Back to Game Board
800 PointsConstant Velocity? Traveling at 50 mph
north and then traveling at 50 mph west.
No.
Back to Game Board
1000 PointsConstant velocity? Driving at the same
speed in a circle.
No.
Back to Game Board
200 PointsThis word is used in
physics to mean “with respect to.” It implies
the notion of perspective.
Relative
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400 PointsThis word is used to
described motion that is in a straight line.
Linear
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600 PointsThis word describes how
fast “something” is done with respect to
time.Rate
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800 PointsThis word describes speed, velocity, or
acceleration at a specific moment in time.
Instantaneous
Back to Game Board
1000 PointsThis word describes speed, velocity, or
acceleration over an entire trip or span of
time.Average
Back to Game Board
200 PointsAn apple takes 2.0
seconds to fall from rest to the ground. This is how fast (in m/s) the apple is
moving right before it hits the ground.19.6 m/s
Back to Game Board
400 PointsAn apple takes 2.0
seconds to fall from rest to the ground. This is how far above the ground the
apple was initially. 19.6 meters
Back to Game Board
600 PointsBob jumps off the
ground with an initial velocity of 1.2 m/s. This is the total time that he
is in the air.0.24 seconds
Back to Game Board
800 PointsA car accelerates from
rest to 25 m/s in 5 seconds. This is the car’s acceleration.
5 m/s2
Back to Game Board
1000 PointsA ball is thrown straight down
from a cliff with an initial downward velocity of 12 m/s. If the ball takes 4 seconds to
hit the ground, this is the height of the cliff.
126.4 meters
Back to Game Board
FINAL JEOPARDYThe category for Final Jeopardy
is...
BobWrite down your wager
now.Here is the question…
FINAL JEOPARDYBob jumps up in the air
with an initial velocity of 4 m/s. Assuming that there is no air resistance (and
that he is an NBA superstar), this is how
high he jumps.0.816 meters
Physics – ReviewLinear Motion
And the winner is…Physic
s is phun!