Mechanics, Electricity and Magnetism and Quantum Theory
PHYS 12

Summer 2012
Columbia College  Physics 12 Unit 7 Test  IV
Student name:
Student ID#: .
TOTAL: 22 Points
1 Point
1/ A constant friction force of 25 N acts on a 65kg skier for 20 s. What is the skiers change in velocity?
r
r
From Newtons second law, p = F
Mechanics, Electricity and Magnetism and Quantum Theory
PHYS 12

Summer 2012
It is a short file, which will demonstrate what simple editing tricks should
everyone use for simplifying the work for compiling the final file, and it is
more professional too.
1. We use Minion Pro font for the main text. If you dont have download it
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Mechanics, Electricity and Magnetism and Quantum Theory
PHYS 12

Summer 2012
Columbia College  Physics 12 Unit 2 Test  IV
Student name:
Student ID#: .
TOTAL: 16 Points
7 Points
1/2 How many significant figures do each of the following numbers have:
(a) 214 .
(d)0.03 .
(g)8700 .
(b)81.60 .
(e)0.0086 .
(c)7.03 .
(f) 3236 .
Mechanics, Electricity and Magnetism and Quantum Theory
PHYS 12

Summer 2012
Columbia College 2012 Physics 12 Midterm Exam #2
Student name:
Student ID#: .
TOTAL: 32 points
1 Point
1/
A positively charged rod is brought close to a neutral piece of paper, which it attracts.
Draw a diagram showing the separation of charge and expl
Mechanics, Electricity and Magnetism and Quantum Theory
PHYS 12

Summer 2012
Columbia College  Physics 12 Unit 10+11 Test  IV
Student name:
Student ID#: .
TOTAL: 30 Points
4 Points
1/ A person scuffing her feet on a wool rug on a dry day accumulates a net charge of 42 C. How many excess
electrons does she get, and by
Mechanics, Electricity and Magnetism and Quantum Theory
PHYS 12

Summer 2012
Columbia College  Physics 12 Unit 4 Test  IV
Student name:
Student ID#: .
TOTAL: 13 Points (part 1) + 6 points(part 2)
1 Points
1/2 A net force of 265N accelerates a bike and rider at 2.30 m/s2. What is the
mass of the bike and rider together?
U
Mechanics, Electricity and Magnetism and Quantum Theory
PHYS 12

Summer 2012
Columbia College  Physics 12 Unit 2  HW
Student name:
Student ID#: .
TOTAL: 15 Points
1 Point
1/2 A bird can fly 25km/h. How long does it take to fly 15km?
2 Points
2/6 A particle at t1=2.0s is at x1=3.4cm and at t2=4.5s is at x2=8.5cm. What
i
Mechanics, Electricity and Magnetism and Quantum Theory
PHYS 12

Summer 2012
Columbia College  Physics 12 Unit 3  HW
Student name:
Student ID#: .
TOTAL: 11 Points
1 Point
1/1 What force is needed to accelerate a child on a sled (total mass = 60kg) at 1.25 m/s2?
2 Points
2/3 How much tension must
Mechanics, Electricity and Magnetism and Quantum Theory
PHYS 12

Summer 2012
Columbia College  Physics 12 Unit 7  HW
Student name:
Student ID#: .
TOTAL: 15 Points
1 Point
1/ What is the magnitude of the momentum of a 28g sparrow flying with a speed of
8.4 m s ?
p = mv = ( 0.028 kg )(8.4 m s ) = 0.24 kggm s
1 Point
Mechanics, Electricity and Magnetism and Quantum Theory
PHYS 12

Summer 2012
Columbia College 2012 Physics 12 Midterm Exam #1
Student name:
Student ID#: .
TOTAL: 17 points
1 Point
1/ A bowling ball traveling with constant speed hits the pins at the end of a bowling lane
16.5 m long. The bowler hears the sound of the ball hittin
Mechanics, Electricity and Magnetism and Quantum Theory
PHYS 12

Summer 2012
Columbia College  Physics 12 Unit 6 Test  IV
Student name:
Student ID#: .
TOTAL: 20 Points
1 Point
1/ A 65.0kg firefighter climbs a flight of stairs 20.0 m high. How much work is required?
The minimum force required to lift the firefighter is e
Mechanics, Electricity and Magnetism and Quantum Theory
PHYS 12

Summer 2012
Columbia College  Physics 12 Unit 3  HW
Student name:
Student ID#:.
TOTAL: 14 Points
1 Point
1/ (I) A car is driven 215 km west and then 85 km southwest. What is the displacement of the car from the point of
origin (magnitude and direction)? Dra
Mechanics, Electricity and Magnetism and Quantum Theory
PHYS 12

Summer 2012
Columbia College  Physics 12 Unit 3 Test  IV
Student name:
Student ID#: .
TOTAL: 16 Points
2 Points
1/ A delivery truck travels 18 blocks north, 10 blocks east, and 16 blocks south. What is its final displacement from
the origin? Assume the bloc
Mechanics, Electricity and Magnetism and Quantum Theory
PHYS 12

Summer 2012
Columbia College  Physics 12 Unit 6  HW
Student name:
Student ID#: .
TOTAL: 10 Points
1 Point
1/ How much work is done by the gravitational force when a 265kg pile driver falls 2.80 m?
The force and the displacement are both downwards, so
Mechanics, Electricity and Magnetism and Quantum Theory
PHYS 12

Summer 2012
OPTI 222
Mechanical Design in Optical Engineering
Idealization of Supports and Distributed loads
Equilibrium: Rigid and Deformable Bodies
The following equations are the necessary conditions for equilibrium of a rigid body.
Fx = 0
Fy = 0
Fz = 0
Mx = 0
My