Home
Subjects
Expert solutions
Create
Study sets, textbooks, questions
Log in
Sign up
Upgrade to remove ads
Only $35.99/year
Physics Final: Momentum
Flashcards
Learn
Test
Match
Flashcards
Learn
Test
Match
Answer w/ the terms
Terms in this set (21)
Collisons, explosions
Momentum
is
conserved
through all ----- and -----.
mass x velocity
Momentum is...
kgm/s
Unit
for momentum
mass, velocity
The more ---- or higher -------- =
more momentum
Final: ball travels at -(x) velocity. In order to make the velocity 0 like before, human and skateboard go in the opposite direction, +(x) velocity.
Final velocity all = 0.
Final momentum = 0.
*Note: - & + could be switched, what matters is one of them is assigned to each direction.
Conservation of momentum happens in an explosion.
Initial: Human standing on a skateboard, holding a ball.
Initial momentum = 0.
Final: human throws the ball in one direction, what happens?
Bounces/goes back to where it was before
Elastic
collison
Doesn't bounce/go back to where it was before
Inelastic
collison
The momentum of the objects after
The momentum of the objects before the collision = ...
Force x time
Impulse = ...
Energy is transferred, bottom one bounces less than if alone, top one(s) go SUPER high
Those 3 balls fall ontop of each other... what hapens?
Don't move, stuck together
What do two cars with the
same mass
and
same velocity but in opposite directions
do when they
collide?
Momentum of both sides must balance out to 0. The bullet has less mass so it has a higher velocity.
You shoot a rifle. The
20g bullet
shoots out at
300m/s
while the
2kg rifle recoils backwards at 3m/s.
Why
do they have
different velocities?
maivai + mtivti = mafvaf + mtfvtf
equation to find out final/initial mass/velocity
can have 2 things added on both sides
Ignore it (when writing/solving the equation)
mai etc equation-
what do you do
if there's no acceleration
in the picture?
Ball that bounces back
Has a greater change in velocity, so greater change in momentum
Which has a
greater change in momentum?
Ball thrown at wall and
sticks to it
Ball thrown at wall
and bounces back
Increases the time to slow down, decreasing the force and acceleration
What's the purpose of a
padded dashboard?
Doubled
If the
speed
is
doubled,
what
happens to the mometum?
Same
Bug hits windsheild,
which has a greatest change in momentum?
(The) net force through time
Define
impulse
Extending the time of contact reduces the force
Why
Are there
padded dashboards
Catchers pull their hand back when catching a fastball
1) J
2) J = Ft
1) Impulse letter
2) Impulse equation
Sets with similar terms
Momentum and Impulse Concepts
21 terms
05_Momentum & Collisons
63 terms
Chapter 9 physics review
33 terms
physics momentum sc
52 terms
Sets found in the same folder
Freshmen Wellness Midterm
42 terms
English, Sticky Note Strategies (Midterm)
8 terms
Physics, Momentum Test
6 terms
English, Commas
15 terms
Other sets by this creator
Physics Final: Electricity/Magnetism
8 terms
PRETERITE
26 terms
Q3 Exam
22 terms
Exam 14, Interwar
40 terms
Verified questions
PHYSICS
A $60-\mathrm{kg}$ woman walking on level ground at $1 \mathrm{m} / \mathrm{s}$ metabolizes energy at a rate of $230 \mathrm{W}$. When she walks up a $5^{0}$ incline at the same speed, her metabolic rate increases to $370 \mathrm{W}$. Determine her efficiency at converting chemical energy into gravitational potential energy.
PHYSICS
The electric flux through a square-shaped area of side 5 cm near a large charged sheet is found to be $3 \times 10 ^ { - 5 } \mathrm { N } \cdot \mathrm { m } ^ { 2 } / \mathrm { C }$ when the area is parallel to the plate. Find the charge density on the sheet.
PHYSICS
A 2.50-kg mass is pushed against a horizontal spring of force constant 25.0 N/cm on a frictionless air table. The spring is attached to the tabletop, and the mass is not attached to the spring in any way. When the spring has been compressed enough to store 11.5 J of potential energy in it, the mass is suddenly released from rest. (a) Find the greatest speed the mass reaches. When does this occur? (b) What is the greatest acceleration of the mass, and when does it occur?
PHYSICS
Why does blue light eject electrons from a certain photosensitive surface, whereas red light has no effect on that surface?
Recommended textbook solutions
Atkins Physical Chemistry
10th Edition
Julio de Paula, Peter Atkins
1,315 solutions
Mathematical Methods in the Physical Sciences
3rd Edition
Mary L. Boas
3,355 solutions
Fundamentals of Physics
10th Edition
David Halliday, Jearl Walker, Robert Resnick
7,188 solutions
Physics for Scientists and Engineers with Modern Physics
4th Edition
Douglas C Giancoli
7,064 solutions
Other Quizlet sets
Chẩn đoán thai nghén
13 terms
AP Psych Chapter 14 Terms
26 terms
Forearm and Hand II
14 terms