Question 1

Light from a 600 nm source goes through two slits 0.080 mm apart.What is the angular separation of the two first order maxima occurring on a screen 2.0 m from the slits?

Accepted Answer

A)  0.15° 
B)  0.86° 
C)  0.015° 
D)  0.0075° 
E)  1.75° 
A)  0.15° 
B)  0.86° 
C)  0.015° 
D)  0.0075° 
E)  1.75°

Question 2

Consider a plot of the displacement (x)as a function of the applied force (F)for an ideal elastic spring.The slope of the curve would be

Accepted Answer

A)  the spring constant. 
B)  the reciprocal of the spring constant. 
C)  the acceleration due to gravity. 
D)  the reciprocal of the acceleration of gravity. 
E)  the mass of the object attached to the spring. 
A)  the spring constant. 
B)  the reciprocal of the spring constant. 
C)  the acceleration due to gravity. 
D)  the reciprocal of the acceleration of gravity. 
E)  the mass of the object attached to the spring.

Question 3

A 25 kg object is undergoing lightly damped harmonic oscillations.If the maximum displacement of the object from its equilibrium point drops to 1/3 its original value in 1.8 s,what is the value of the damping constant b?

Accepted Answer

A)  31 kg/s 
B)  34 kg/s 
C)  37 kg/s 
D)  40 kg/s 
A)  31 kg/s 
B)  34 kg/s 
C)  37 kg/s 
D)  40 kg/s

Question 4

A very long nonconducting cylinder of diameter 10.0 cm carries charge distributed uniformly over its surface.Each meter of length carries +5.50 µC of charge.A proton is released from rest just outside the surface.How far will it be from the SURFACE of the cylinder when its speed has reached 2550 km/s?
(k = 1/4πε0 = 8.99 × 109 N • m2/C2,e = 1.60 × 10-19 C,mproton = 1.67 × 10-27 kg)

Accepted Answer

Question 5

A car travels at a steady 40.0 m/s around a horizontal curve of radius 200 m. What is the minimum coefficient of static friction between the road and the car's tires that will allow the car to travel at this speed without sliding?

Accepted Answer

A)  1.23 
B)  0.816 
C)  0.736 
D)  0.952 
E)  0.662 
A)  1.23 
B)  0.816 
C)  0.736 
D)  0.952 
E)  0.662

Question 6

You are generating traveling waves on a stretched string by wiggling one end.If you suddenly begin to wiggle more rapidly without appreciably affecting the tension,you will cause the waves to move down the string

Accepted Answer

A)  faster than before. 
B)  slower than before. 
C)  at the same speed as before. 
A)  faster than before. 
B)  slower than before. 
C)  at the same speed as before.

Question 7

A toy rocket is launched vertically from ground level (y = 0.00 m),at time t = 0.00 s.The rocket engine provides constant upward acceleration during the burn phase.At the instant of engine burnout,the rocket has risen to 72 m and acquired a velocity of 30 m/s.The rocket continues to rise in unpowered flight,reaches maximum height,and falls back to the ground with negligible air resistance.The speed of the rocket upon impact on the ground is closest to

Accepted Answer

A)  48 m/s 
B)  44 m/s 
C)  39 m/s 
D)  54 m/s 
E)  59 m/s 
A)  48 m/s 
B)  44 m/s 
C)  39 m/s 
D)  54 m/s 
E)  59 m/s

Question 8

In the figure,a 10.0-m long bar is attached by a frictionless hinge to a wall and held horizontal by a rope that makes an angle θ of 53° with the bar.The bar is uniform and weighs 39.9 N.How far from the hinge should a 10.0-kg mass be suspended for the tension T in the rope to be 125 N?

Accepted Answer

8.15 m fro

Question 9

A charged particle is moving with speed v perpendicular to a uniform magnetic field.A second identical charged particle is moving with speed 2v perpendicular to the same magnetic field.If the frequency of revolution of the first particle is f,the frequency of revolution of the second particle is

Accepted Answer

A)  f. 
B)  2f. 
C)  4f. 
D)  f/2. 
E)  f/4. 
A)  f. 
B)  2f. 
C)  4f. 
D)  f/2. 
E)  f/4.

Question 10

A lens is made with a focal length of -40 cm using a material with index of refraction 1.50.A second lens is made with the SAME GEOMETRY as the first lens,but using a material having refractive index of 2.00.What is the focal length of the second lens?

Accepted Answer

A)  -40 cm 
B)  -80 cm 
C)  -53 cm 
D)  -20 cm 
E)  -30 cm 
A)  -40 cm 
B)  -80 cm 
C)  -53 cm 
D)  -20 cm 
E)  -30 cm

Question 11

The magnitude of a vector can never be less than the magnitude of one of its components.

Accepted Answer

A) True 
 B)False

Question 12

A block is on a frictionless horizontal table,on earth.This block accelerates at 3.6 m/s2 when a 90 N horizontal force is applied to it. The block and table are then set up on the moon where the acceleration due to gravity is 1.62 m/s2. A horizontal force of 45 N is applied to the block when it is on the moon.What acceleration does this force impart to the block?

Accepted Answer

A)  1.8 m/s2 
B)  1.6 m/s2 
C)  2.0 m/s2 
D)  2.2 m/s2 
E)  2.3 m/s2 
A)  1.8 m/s2 
B)  1.6 m/s2 
C)  2.0 m/s2 
D)  2.2 m/s2 
E)  2.3 m/s2

Question 13

Three forces,F1 = 20.0 N,F2 = 40.0 N,and F3 = 10.0 N act on an object with a mass of 2.00 kg which can move along a frictionless inclined plane as shown in the figure.The questions refer to the instant when the object has moved through a distance of 0.600 m along the surface of the inclined plane in the upward direction.Calculate the amount of work done by
(a) F1
(b) F2
(c) F3.

Accepted Answer

(a)12.0 J

Question 14

In the figure,the radius of curvature of the curved part of the lens is 24.0 cm,and the refractive index of the lens material is 1.750.What is the focal length of the lens?

Accepted Answer

A)  +32.0 cm 
B)  -32.0 cm 
C)  -16.0 cm 
D)  +13.8 cm 
E)  -13.8 cm 
A)  +32.0 cm 
B)  -32.0 cm 
C)  -16.0 cm 
D)  +13.8 cm 
E)  -13.8 cm

Question 15

For a fixed amount of gas,if the absolute temperature of the gas is doubled,what happens to the pressure of the gas?

Accepted Answer

A)  The answer cannot be determined without volume information. 
B)  The pressure of the gas becomes double the original pressure. 
C)  The pressure of the gas becomes eight times the original pressure. 
D)  The pressure of the gas becomes one half the original pressure. 
E)  The pressure of the gas becomes four times the original pressure. 
A)  The answer cannot be determined without volume information. 
B)  The pressure of the gas becomes double the original pressure. 
C)  The pressure of the gas becomes eight times the original pressure. 
D)  The pressure of the gas becomes one half the original pressure. 
E)  The pressure of the gas becomes four times the original pressure.

Question 16

An object is placed in front of a lens which forms an image of the object.

Accepted Answer

A)  If the lens is convex, the image cannot be virtual. 
B)  If the image is real, then it is also inverted. 
C)  If the image is real, then it is also upright. 
D)  If the image is virtual, then it is also inverted. 
E)  If the image is virtual, the lens must be a diverging lens. 
A)  If the lens is convex, the image cannot be virtual. 
B)  If the image is real, then it is also inverted. 
C)  If the image is real, then it is also upright. 
D)  If the image is virtual, then it is also inverted. 
E)  If the image is virtual, the lens must be a diverging lens.

Question 17

Four resistors are connected across an 8-V DC battery as shown in the figure.The current through the 9-Ω resistor is closest to

Accepted Answer

A)  1 A. 
B)  0.7 A. 
C)  0.5 A. 
D)  0.9 A. 
E)  2 A. 
A)  1 A. 
B)  0.7 A. 
C)  0.5 A. 
D)  0.9 A. 
E)  2 A.

Question 18

Vectors   and  
Are shown in the figure.Vector  
Is given by  
=  
-  
)The magnitude of vector  
Is 16.0 units,and the magnitude of vector  
Is 7.00 units.What is the angle of vector  
,measured counterclockwise from the +x-axis?

Accepted Answer

A)  16.9° 
B)  22.4° 
C)  73.1° 
D)  287° 
E)  292° 
A)  16.9° 
B)  22.4° 
C)  73.1° 
D)  287° 
E)  292°

Question 19

In the figure,a 0.24-kg ball is suspended from a very light string 9.79 m long and is pulled slightly to the left.As the ball swings without friction through the lowest part of its motion it encounters an ideal massless spring attached to the wall.The spring pushes against the ball and eventually the ball is returned to its original starting position.Find the time for one complete cycle of this motion if the spring constant of the spring is 21 N/m.(Assume that once the pendulum ball hits the spring there is no effect due to the vertical movement of the ball.)

Accepted Answer

The answer of In the figure,a 0.24-kg ball is suspended...

Question 20

A coating is being applied to reduce the reflectivity of a pane of glass to light with a frequency of
5)75 × 1014 Hz that is incident normally on the pane.If the material has an index of refraction of 1.375 and the glass has an index of refraction of 1.537,what is the minimum thickness the coating should have?
(c = 3.00 × 108 m/s)

Accepted Answer

A)  60.0 nm 
B)  94.9 nm 
C)  145 nm 
D)  65.2 nm 
E)  80.1 nm 
A)  60.0 nm 
B)  94.9 nm 
C)  145 nm 
D)  65.2 nm 
E)  80.1 nm

Exam 1: A: Foundations

Light from a 600 nm source goes through two slits 0.080 mm apart.What is the angular separation of the two first order maxima occurring on a screen 2.0 m from the slits?

Consider a plot of the displacement (x)as a function of the applied force (F)for an ideal elastic spring.The slope of the curve would be

A 25 kg object is undergoing lightly damped harmonic oscillations.If the maximum displacement of the object from its equilibrium point drops to 1/3 its original value in 1.8 s,what is the value of the damping constant b?

A car travels at a steady 40.0 m/s around a horizontal curve of radius 200 m. What is the minimum coefficient of static friction between the road and the car's tires that will allow the car to travel at this speed without sliding?

You are generating traveling waves on a stretched string by wiggling one end.If you suddenly begin to wiggle more rapidly without appreciably affecting the tension,you will cause the waves to move down the string

In the figure,a 10.0-m long bar is attached by a frictionless hinge to a wall and held horizontal by a rope that makes an angle θ of 53° with the bar.The bar is uniform and weighs 39.9 N.How far from the hinge should a 10.0-kg mass be suspended for the tension T in the rope to be 125 N?

A charged particle is moving with speed v perpendicular to a uniform magnetic field.A second identical charged particle is moving with speed 2v perpendicular to the same magnetic field.If the frequency of revolution of the first particle is f,the frequency of revolution of the second particle is

A lens is made with a focal length of -40 cm using a material with index of refraction 1.50.A second lens is made with the SAME GEOMETRY as the first lens,but using a material having refractive index of 2.00.What is the focal length of the second lens?

The magnitude of a vector can never be less than the magnitude of one of its components.

In the figure,the radius of curvature of the curved part of the lens is 24.0 cm,and the refractive index of the lens material is 1.750.What is the focal length of the lens?

For a fixed amount of gas,if the absolute temperature of the gas is doubled,what happens to the pressure of the gas?

An object is placed in front of a lens which forms an image of the object.

Four resistors are connected across an 8-V DC battery as shown in the figure.The current through the 9-Ω resistor is closest to

Vectors and Are shown in the figure.Vector Is given by = - )The magnitude of vector Is 16.0 units,and the magnitude of vector Is 7.00 units.What is the angle of vector ,measured counterclockwise from the +x-axis?

Foundations

Motion in One Dimension

Acceleration

Momentum

Energy

Principle of Relativity

Interactions

Force

Work

Motion in a Plane

Motion in a Circle

Torque

Gravity

Special Relativity

Periodic Motion

Waves in One Dimension

Waves in Two and Three Dimensions

Fluids

Entropy

Energy Transferred Thermally

Degradation of Energy

Electric Interactions

The Electric Field

Gausss Law

Work and Energy in Electrostatics

Charge Separation and Storage

Magnetic Interactions

Magnetic Fields of Charged Particles in Motion

Changing Magnetic Fields

Changing Electric Fields

Electric Circuits

Electronics

Ray Optics

Wave and Particle Optics

Filters