Document

50:50
Who Wants to Be
a Physicist?
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$1 Million
$500,000
$250,000
$125,000
$64,000
$32,000
$16,000
$8,000
$4,000
$2,000
$1,000
$500
$300
$200
$100
© Mark E. Damon - All Rights Reserved
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$1 Million
$500,000
$250,000
$125,000
$64,000
$32,000
$16,000
$8,000
$4,000
$2,000
$1,000
$500
$300
$200
$100
© Mark E. Damon - All Rights Reserved
When a car’s velocity is
positive and its acceleration is
negative, what is happening to
the car’s motion?
50:50
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$1 Million
$500,000
$250,000
$125,000
$64,000
$32,000
$16,000
$8,000
$4,000
$2,000
$1,000
$500
$300
$200
$100
A: The car speeds up.
B: The car slows down.
C: The car travels
logy
at constant speed.
D: The car remains at rest.
© Mark E. Damon - All Rights Reserved
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$1 Million
$500,000
$250,000
$125,000
$64,000
$32,000
$16,000
$8,000
$4,000
$2,000
$1,000
$500
$300
$200
$100
© Mark E. Damon - All Rights Reserved
Calculate the velocity of a
boat (in m/s) that covers a
distance of 36-km in a
time of 1-hr.
50:50
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A: 10,000-m/s
B: 1,000-m/s
C: 100-m/s
D: 10-m/s
$1 Million
$500,000
$250,000
$125,000
$64,000
$32,000
$16,000
$8,000
$4,000
$2,000
$1,000
$500
$300
$200
$100
© Mark E. Damon - All Rights Reserved
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$1 Million
$500,000
$250,000
$125,000
$64,000
$32,000
$16,000
$8,000
$4,000
$2,000
$1,000
$500
$300
$200
$100
© Mark E. Damon - All Rights Reserved
The length of a force
vector represents the
50:50
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$1 Million
$500,000
$250,000
$125,000
$64,000
$32,000
$16,000
$8,000
$4,000
$2,000
$1,000
$500
$300
$200
$100
A: magnitude or
strength of the force
B: direction of the force
C: cause of the force
D: type of force
© Mark E. Damon - All Rights Reserved
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$1 Million
$500,000
$250,000
$125,000
$64,000
$32,000
$16,000
$8,000
$4,000
$2,000
$1,000
$500
$300
$200
$100
© Mark E. Damon - All Rights Reserved
A ball is whirled on a
string, then the string
breaks. What causes
the ball to move off in a
straight line?
50:50
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$1 Million
$500,000
$250,000
$125,000
$64,000
$32,000
$16,000
$8,000
$4,000
$2,000
$1,000
$500
$300
$200
$100
A: Inertia
B: Centripetal force
C: Centrifugal force
D: Centripetal acceleration
© Mark E. Damon - All Rights Reserved
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$1 Million
$500,000
$250,000
$125,000
$64,000
$32,000
$16,000
$8,000
$4,000
$2,000
$1,000
$500
$300
$200
$100
© Mark E. Damon - All Rights Reserved
How much time would it take
the superhero Wonder Woman
to reach a speed of 100-m/s if
she starts at rest and can
accelerate at 50-m/s^2?
50:50
A: 25-s
B: 75-s
C: 2-s
D: 0.5-s
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$1 Million
$500,000
$250,000
$125,000
$64,000
$32,000
$16,000
$8,000
$4,000
$2,000
$1,000
$500
$300
$200
$100
© Mark E. Damon - All Rights Reserved
the $1,000
Milestone!
© Mark E. Damon - All Rights Reserved
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$1 Million
$500,000
$250,000
$125,000
$64,000
$32,000
$16,000
$8,000
$4,000
$2,000
$1,000
$500
$300
$200
$100
© Mark E. Damon - All Rights Reserved
Two billiard balls
collide. Identify the type
of collision.
50:50
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A: elastic
B: perfectly elastic
C: inelastic
D: perfectly inelastic
$1 Million
$500,000
$250,000
$125,000
$64,000
$32,000
$16,000
$8,000
$4,000
$2,000
$1,000
$500
$300
$200
$100
© Mark E. Damon - All Rights Reserved
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$1 Million
$500,000
$250,000
$125,000
$64,000
$32,000
$16,000
$8,000
$4,000
$2,000
$1,000
$500
$300
$200
$100
© Mark E. Damon - All Rights Reserved
If both the mass and the
velocity of a ball were
tripled, the kinetic
energy of the ball would
increase by a factor of
50:50
A: 3
B: 6
C: 9
D: 27
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$1 Million
$500,000
$250,000
$125,000
$64,000
$32,000
$16,000
$8,000
$4,000
$2,000
$1,000
$500
$300
$200
$100
© Mark E. Damon - All Rights Reserved
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$1 Million
$500,000
$250,000
$125,000
$64,000
$32,000
$16,000
$8,000
$4,000
$2,000
$1,000
$500
$300
$200
$100
© Mark E. Damon - All Rights Reserved
A 75 kg person walking around a
corner bumped into an 80 kg
person who was running around
the same corner in the opposite
direction. The momentum of the
80 kg person
50:50
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A: decreased
B: increased
C: remained the same
D: was conserved
$1 Million
$500,000
$250,000
$125,000
$64,000
$32,000
$16,000
$8,000
$4,000
$2,000
$1,000
$500
$300
$200
$100
© Mark E. Damon - All Rights Reserved
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$1 Million
$500,000
$250,000
$125,000
$64,000
$32,000
$16,000
$8,000
$4,000
$2,000
$1,000
$500
$300
$200
$100
© Mark E. Damon - All Rights Reserved
Which of the following is not
an example of potential
energy?
50:50
A: A stretched rubber band.
C: A speeding car.
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$1 Million
$500,000
$250,000
$125,000
$64,000
$32,000
$16,000
$8,000
$4,000
$2,000
$1,000
$500
$300
$200
$100
B: A basketball player at the
peak of his jump.
D: A boulder on top of a
cliff.
© Mark E. Damon - All Rights Reserved
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$1 Million
$500,000
$250,000
$125,000
$64,000
$32,000
$16,000
$8,000
$4,000
$2,000
$1,000
$500
$300
$200
$100
© Mark E. Damon - All Rights Reserved
A worker does 25J of work
lifting a bucket, then sets
the bucket back down in
the same place. What is
the total net work done on
the bucket?
50:50
A: 50 J
B: 25 J
C: -25J
D: 0 J
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$1 Million
$500,000
$250,000
$125,000
$64,000
$32,000
$16,000
$8,000
$4,000
$2,000
$1,000
$500
$300
$200
$100
© Mark E. Damon - All Rights Reserved
the $32,000
Milestone!
© Mark E. Damon - All Rights Reserved
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$1 Million
$500,000
$250,000
$125,000
$64,000
$32,000
$16,000
$8,000
$4,000
$2,000
$1,000
$500
$300
$200
$100
© Mark E. Damon - All Rights Reserved
A 3.00 kg toy falls from a height
of 1.00 m. What will the kinetic
energy of the toy be just before the
toy hits the ground? (assume no
air resistance and that g = 10
m/s^2)
50:50
A: 10 J
B: 30 J
C: 40 J
D: 60 J
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$1 Million
$500,000
$250,000
$125,000
$64,000
$32,000
$16,000
$8,000
$4,000
$2,000
$1,000
$500
$300
$200
$100
© Mark E. Damon - All Rights Reserved
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$1 Million
$500,000
$250,000
$125,000
$64,000
$32,000
$16,000
$8,000
$4,000
$2,000
$1,000
$500
$300
$200
$100
© Mark E. Damon - All Rights Reserved
The gravitational force
between two masses is 36 N.
What is the gravitational
force if the distance between
them is tripled?
50:50
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A: 18 N
B: 9.0 N
C: 4.0 N
D: 27 N
$1 Million
$500,000
$250,000
$125,000
$64,000
$32,000
$16,000
$8,000
$4,000
$2,000
$1,000
$500
$300
$200
$100
© Mark E. Damon - All Rights Reserved
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$1 Million
$500,000
$250,000
$125,000
$64,000
$32,000
$16,000
$8,000
$4,000
$2,000
$1,000
$500
$300
$200
$100
© Mark E. Damon - All Rights Reserved
A ball with a momentum of
4.0 kg x m/s hits a wall and
bounces straight back without
losing any kinetic energy.
What is the change in the
ball’s momentum?
50:50
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$1 Million
$500,000
$250,000
$125,000
$64,000
$32,000
$16,000
$8,000
$4,000
$2,000
$1,000
$500
$300
$200
$100
A: 0.0 kg x m/s
B: 8.0 kg x m/s
C: -4.0 kg x m/s
D: -8.0 kg x m/s
© Mark E. Damon - All Rights Reserved
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$1 Million
$500,000
$250,000
$125,000
$64,000
$32,000
$16,000
$8,000
$4,000
$2,000
$1,000
$500
$300
$200
$100
© Mark E. Damon - All Rights Reserved
The radius of the Earth
6,370,000 m. Express this
measurement in km in
scientific notation.
50:50
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$1 Million
$500,000
$250,000
$125,000
$64,000
$32,000
$16,000
$8,000
$4,000
$2,000
$1,000
$500
$300
$200
$100
A: 6.37 x 10^3 km
B: 6.37 x 10^6 km
C: 63.7 x 10^4 km
D: 637 x 10^3 km
© Mark E. Damon - All Rights Reserved
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$1 Million
$500,000
$250,000
$125,000
$64,000
$32,000
$16,000
$8,000
$4,000
$2,000
$1,000
$500
$300
$200
$100
© Mark E. Damon - All Rights Reserved
A billiard ball collides with a
stationary (at rest) identical
billiard ball in an elastic headon collision. After the
collision, which of the
following is true of the first
ball?
50:50
A: It maintains its initial
velocity.
C: It has one-half its
initial velocity.
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$1 Million
$500,000
$250,000
$125,000
$64,000
$32,000
$16,000
$8,000
$4,000
$2,000
$1,000
$500
$300
$200
$100
B: It comes to rest.
D: It moves in the
opposite direction.
© Mark E. Damon - All Rights Reserved
YOU WIN $1
MILLION DOLLARS!