nope
Which object has the greatest inertia? 0.01kg bullet traveling at 90 m/s, a 50kg child traveling at 10 m/s on a bike, 500kg elephant walking 1 m/s, 1,500kg car at rest
1,500 kg car
What is the reflection angle of the angle of incidence is 30 degrees?
30 degrees
If a person with a mass of 75kg on Earth is running at 10 m/s left for 5 seconds and accelerates negatively for 2 seconds, what is this persons mass on Mars?
75kg
The electron volt is a unit of energy charge, electric field strength, or electric potential difference?
Energy
The aproxamit length of an unsharpened number 2 pencil is: 2x10^-2, 2x10^-1, 2x10^0, 2x10^1, or 2x10^2
2x10^-2
Which particle would produce a magnetic field? A neutral particle moving in a straight line, neutral particle moving in a circle, a stationary charged particle, or a moving charged particle
A moving charged particle
At what angle should you throw a ball to reach the greatest hight with 10N of force? 90, 75, 45, or 20 degrees?
90 degrees
Two 20N forces act concurrently on an object, at what angle produces the resultent with the greatest magnitude? 0, 45, 90, 180 degrees
0 degrees
Which situation represents a person in equilibrium? A child gaining speed while sliding down a slide, a woman accelerating upward in an elevator, a man standing still on a bathroom scale, or a transfer driving around a corner in a car?
a man standing still on a bathroom scale
A rock is thrown straight up into the air, at the highest point of the rocks path the magnitude of the net force acting of the rock is: less than the magnitude of the rocks weight but greater than zero, greater than the magnitude of the rock’s weight, same magnitude of the rocks weight, zero
same as the magnitude of the rock’s weight
What is the speed of light in ethyl alcohol
A. 4.53x10^-9 m/s
B. 2.43x10^2 m/s
C. 1.24x10^8 m/s
D. 2.21x10^8 m/s
D
One vibrating 256hz tuning fork transfers energy to another 256hz tuning fork causing the second tuning fork to vibrate
A. Diffraction
B. Reflection
C. Refraction
D. Resonance
D
An electric drier consumes 6x10^6 J of electrical energy when operating at 220V for 8.1x10^3s.During operation the drier draws a current of…
A 10 A
B 15A
C 9x10^2A
D 3.3x10^3A
B
An 8kg cart is moving to the right 4m/s, and a 4kg cart is moving to the left at 6m/s. After the collision the 4 kg cart moved to the right at 3 m/s what is the velocity of the 8kg cart after collision.
A 0.5m/s left
B 0.5 m/s right
C 5.5 m/s left
D 5.5 m/s right
A
A sound wave traveling eastward through air causes the air molecules to vibrate
A. east and west
B. north and south
C. eastward only
D. move northward only
A.
A baseball bat exerts an average force of 600N east on a ball, imparting an impulse of 3.6 N/s on the ball. Calculate the amount of time the baseball bat is in contact with the ball.
J=Fnet x t
6x10^-3 seconds
Explain what is meant by an atom being in its ground state.
Allow 1 credit for stating that the ground state is the lowest available energy level that an atom can have or that the ground state is the most stable energy state.
Calculate the energy of a photon, in joules, that accounts for the red glow of the aurora. [Show all work, including the equation and substitution with units.
E=hf
3.16x10^-19 Joulse
Which combination of three quarks will produce a neutron?
UDD
Up down down
The Tevatron derives its name from teraelectronvolt, the maximum energ Determine the energy, in joules, equivalent to 1.00 teraelectronvolt.
1.60x10^-7J
An electron in a mercury atom changes from energy level b to a higher energy level when the atom absorbs a single photon with an energy of 3.06 electronvolts.
Energy level f
4.9x10^-9 joules
Ephoton = hf
7.39 x 10^14 Hz
Visible light or violet
The plucked string vibrates, producing a musical note called "G." The waves traveling along the vibrating string produce a standing wave with a frequency of 196 hertz.
82 [1] Allow 1 credit for 1.24 m or 1.240 m.
83 [1] Allow 1 credit for the equation and substitutions with units or for an answer, with units, that is consistent with the student's response to question 82. Refer to Scoring Criteria for Calculations in this rating guide.
Example of a l-credit response:
0 = (196 Hz) (1.240 m)
84 [1] Allow 1 credit for a correct answer with units or for an answer, with units, that is consistent with the student's response to question 83.
Example of a l-credit response:
v = 243 m/s
Note: Do not penalize the student more than 1 credit for errors in units in questions 83 and 84.
Allow 1 credit for a statement indicating that the frequency will increase. Acceptable responses include, but are not limited to:
- It increases.
— The frequency gets higher.
A gas-powered model airplane has a mass of 2.50 kilograms. A student exerts a force on a cord to keep the airplane flying around her at a constant speed of 18.0 meters per second in a horizontal, circular path with a radius of 25.0 meters.
77-78 Calculate the kinetic energy of the moving airplane. [Show all work, including the equation and substitution with units.] [2]
79-80 Calculate the magnitude of the centripetal force exerted on the airplane to keep it moving in this circular path. [Show all work, including the equation and substitution with units.] [2]
77 [1] Allow 1 credit for the equation and substitution with units. Refer to Scoring Criteria for Calculations in this rating guide.
Example of a 1-credit response:
KE = -
- ทาง"
KE - 2(2.50 kg/18.0 m/s)}
78 [1] Allow 1 credit for the correct answer with units or for an answer, with units, consistent with the student's response to question 77.
Example of a 1-credit response:
KE = 405J
Note: Do not penalize the student more than 1 credit for errors in units in questions 77 and 78.
[1] Allow 1 credit for the equation and substitution with units. Refer to Scoring Criteria for Calculations in this rating guide.
Examples of 1-credit responses:
Fc = mac
то 2
F, =
2
Fc
(2.50 kg)(18.0 m/s) 2
25.0 m
Fc = mac
Fc = (2.50 kg)(13.0 m/s2)
or
80 [1] Allow 1 credit for the correct answer with units or for an answer, with units, consistent with the student's response to question 79.
Examples of 1-credit responses:
F. = 32.4 N or
32.5 N
Base your answers to questions 71 through 75 on the information below and on your knowledge of physics.
Pluto orbits the Sun at an average distance of 5.91 × 1012 meters. Pluto's diameter is 2.30 x 106 meters and its mass is 1.31 x 1022 kilograms.
Charon orbits Pluto with their centers separated by a distance of 1.96 × 107 meters. Charon has a diameter of 1.21 × 106 meters and a mass of 1.55 x 102 kilograms.
71-72 Calculate the magnitude of the gravitational force of attraction that Pluto exerts on Charon. [Show all work, including the equation and substitution with units.] [2]
73-74 Calculate the magnitude of the acceleration of Charon toward Pluto. [Show all work, including the equation and substitution with units.] [2]
75 State the reason why the magnitude of the Sun's gravitational force on Pluto is greater than the magnitude of the Sun's gravitational force on Charon. [1]
Allow 1 credit for the equation and substitution with units. Refer to Scoring Criteria for Calculations in this rating guide.
Example of a 1-credit response:
F
0q
Gm, m2
2
F
g
(6.67 × 10-1 Nom?/kg? 1.31 x 1022 kg) (1.55 x 1021 kg)
(1.96 x10° m)
72 [1] Allow 1 credit for a correct answer with units.
Example of a 1-credit response:
F = 3.53 × 1018 N
Note: Allow credit for an answer that is consistent with the student's response to question 71.
Do not penalize the student more than 1 credit for errors in units in questions 71 and 72.
Directions (66-85): Record your answers in the spaces provided in your answer booklet. Some questions may require the use of the 2006 Edition Reference Tables for Physical Setting/Physics.
Base your answers to questions 66 through 70 on the information below and on your knowledge of physics.
A student constructed a series circuit consisting of a 12.0-volt battery, a 10.0-ohm lamp, and a resistor. The circuit does not contain a voltmeter or an ammeter. When the circuit is operating, the total current through the circuit is 0.50 ampere.
56 In the space in your answer booklet, draw a diagram of the series circuit constructed to operate the lamp, using symbols from the Reference Tables for Physical Setting/Physics. [1]
Allow 1 credit for 24 .
68 [1] Allow 1 credit for 14 S.
Note: Allow credit for an answer that is consistent with the student's response to questions 66 and 67.
69 [1] Allow 1 credit for the equation and substitution with units. Refer to Scoring Criteria for Calculations in this rating guide.
Example of a 1-credit response:
P = IR
or
P = (0.50 A)= (10.0 2)
P = VI
P = (5.0 V)(0.50 A)
70 [1] Allow 1 credit for the correct answer with units.
P = 2.5 W