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Exam 2 | PHY 211 - GENERAL PHYSICS, Quizzes of Physics

Class: PHY 211 - GENERAL PHYSICS; Subject: Physics; University: University of Kentucky; Term: Fall 2011;

Typology: Quizzes

2010/2011

Uploaded on 10/17/2011

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TERM 1
T_1=
DEFINITION 1
T_1 = T_2(cos_2/cos_1)
TERM 2
Kinetic Energy =
DEFINITION 2
KE = (1/2)*mv^2
TERM 3
Work =
DEFINITION 3
W = F * cos* ss = distance = x = y = d
TERM 4
W_net
DEFINITION 4
W-net = change in KE
TERM 5
Gravitational PE
DEFINITION 5
PE_g = mgh
pf3
pf4
pf5

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T_1=

T_1 = T_2(cos_2/cos_1)

TERM 2

Kinetic Energy =

DEFINITION 2

KE = (1/2)*mv^

TERM 3

Work =

DEFINITION 3

W = F * cos* ss = distance = x = y = d

TERM 4

W_net

DEFINITION 4

W-net = change in KE

TERM 5

Gravitational PE

DEFINITION 5

PE_g = mgh

Hooke's Law

F = -kx

TERM 7

Action - Reaction Pairs

DEFINITION 7

Arrows points the SAME way

TERM 8

Momentum

DEFINITION 8

p = mv

TERM 9

Force (using

momentum)

DEFINITION 9

F = change in power/change in time

TERM 10

Impulse

DEFINITION 10

I = Force* change in time = change in powerI = change in

power

Properties of an Inelastic Collision

KE is not conservedKE_i = KE_f+E_lostm_1v_1 + m_2v_2 =

m_1v_1' + m_2v_2'

TERM 17

Properties of a Perfectly Inelastic Collision

DEFINITION 17

KE is not conservedObjects stick togetherm_1v_1 + m_2v_

= (m_1+m_2)*v'

TERM 18

If m_2 = m_1 What happens?

DEFINITION 18

v_2' = v_

TERM 19

f_s

DEFINITION 19

Static frictionObject is stationaryf_s = * n

TERM 20

What happens if:

m_

DEFINITION 20

v_1' is almost equal to v_1v_2' is almost equal to 2*v_2ping

pong ball vs. car

What happens if:

m_2>>m_

v_1' is almost equal to - v_1v_2' is almost equal to a fraction

of v_2Earth vs. ball

TERM 22

V_1' =

DEFINITION 22

V_1' = (m1-m2)/(m1+m2)*v_

TERM 23

V_2' =

DEFINITION 23

v_2' = (2(m1))/(m1+m2) * v_