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Jeopardy. $100. $100. $100. $100. $200. $200. $200. $200. $300. $300. $300. $300. $400. $400. $400. $400. $500. $500. $500. $500. Momentum for $100. True or False? Ropes minimize momentum if a slip occurs while rock climbing. Answer. Impulse for $100. True or False? - PowerPoint PPT Presentation
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Jeopardy
Momentum Impulse Inelastic Collisions
Elastic Collisions
$100 $100 $100 $100
$200 $200 $200 $200
$300 $300 $300 $300
$400 $400 $400 $400
$500 $500 $500 $500
Momentum for $100
Answer
True or False?
Ropes minimize momentum if a slip occurs while rock climbing.
Impulse for $100
Answer
True or False?
The impulse of a force, F, acting on an object is more than the product of the
force and the time interval during which the force act.
Inelastic Collision for $100
Answer
An inelastic collision is a collision in which momentum is ________ and
kinetic energy is ________.
Elastic Collision for $100
Answer
In an elastic collision momentum is ________ and kinetic energy is
________.
Momentum for $200
Answer
The formula for momentum is:
a. m=md
b. m=fv
c. p=fd
d. p=mv
Impulse for $200
Answer
A change in impulse equals a change in _________?
Inelastic Collision for $200
Answer
What is an inelastic collision?
Elastic Collision for $200
Answer
What is an elastic collision?
Momentum for $300
Answer
Can a bullet have the same momentum as a truck? Explain.
Impulse for $300
Answer
What is the units for impulse?
Inelastic Collision for $300
Answer
What will happen to a bug and a truck when they undergo an inelastic
collision?
Elastic Collision for $300
Answer
What will happen if a 110lb person set a screen in a basketball game on
a 170lb person?
Momentum for $400
Answer
Which one of Newton’s Laws does this refer to: Rates of change of a body is proportional to net force
applied to it.
Impulse for $400
Answer
What is the equation for the impulse-momentum theorem?
Inelastic Collision for $400
Answer
What is an example of an inelastic collision?
a.when you drop a glass bowl from the counter
b.when you shoot a basketball at the backboard
c. when one freight car hit another one at rest
d. when you slide down a water slide
Elastic Collision for $400
Answer
What is an example of an elastic collision?
a. When you throw an egg at the window
b. When a pool ball hits another
c. When you jump in a pool and make a splash
d. When a candle melts and drips on the candle
Momentum for $500
Answer
How fast must a 0.15kg tennis ball travel to have the same momentum as a 900kg Chevy Avalanche going
20 m/s?
Impulse for $500
Answer
What force must a person hit a stationary 0.12kg soccer ball if the force last for .02 seconds and the
ball moves with a speed of 20 m/s?
Inelastic Collision for $500
Answer
When a 80kg guy is roller skating at a speed of 6m/s and runs into a 40kg girl at rest, what is the velocity after
the collision?
Elastic Collision for $500
Answer
A bowling ball of mass 6kg moving at 5m/s strikes a pin of mass 0.8kg. The pin flies off with a velocity of
10m/s. How fast is the bowling ball now moving?
Momentum - $100
Next
True
During rock climbing nylon ropes stretch to extend force over a
period of time decreasing the force of momentum
Impulse - $100
Next
False
The impulse of a force, F, acting on an object is equal then the product of the force and the time interval during
which the force acts
Inelastic Collision - $100
Next
Inelastic collision is a collision in which momentum is conserved
and kinetic energy non-conserved.
Elastic Collision - $100
Next
In an elastic collision both momentum and kinetic energy is
conserved.
Momentum - $200
Next
D. p=mv
Impulse - $200
Next
Momentum
Inelastic Collision - $200
Next
When an object sticks together with another object
Elastic Collision - $200
Next
When an object collides with a 2nd object and the momentum of the 1st
object to bounce off each other.
Momentum - $300
Next
Yes it depends on force and time of each object.
Impulse - $300
Next
Newtons (seconds)
Inelastic Collision - $300
Next
The bug will stick to the truck.
Elastic Collision - $300
Next
The 110lb person will bounce off the 170lb person.
Momentum - $400
Next
Newton’s Second Law
F=ma
Impulse - $400
Next
f(change in time)=mvf-mvi
Inelastic Collision - $400
Next
C – When one freight car hits another because they stick together
Elastic Collision - $400
Next
B- when a pool ball hits another because the energy from the first ball is transferred to the next ball
and they don’t stick together
Momentum - $500
Next
Givens:
m=900kg
v=20m/s
p=mv
p=900(20)
p=18,000
m=.15kg
v=?
p=mv
18000=.15v
v=120,000m/s
Impulse - $500
Next
F x t = m (change in velocity)
F (.02sec) = .12kg (20m/s)
F (.02sec) = 2.4
F = 120 N
Inelastic Collision - $500
Next
m1v1+m2v2= m1v1+m2v2
80(6)+40(0)=80(v)+40(v)
480=120v2
360=v2
v= 18.97 m/s
Elastic Collision - $500
Next
Givens:
m=6kg
v=5m/s
p=mv
p=6(5)
p=30kg m/s
m=0.8kg
v=10m/s
p=mv
p=0.8(10)
p=8kg m/s
m1v1=m2v2
6(5)=.8(10)
30=8
30-8=
22kg m/s