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Motion
Energy
Forces
Waves
Electricity
100
A bullet is dropped into a river from a very high bridge. At the same time, another bullet is fired from a gun, straight down towards the water. The acceleration just before striking the water A. Is greater for the dropped bullet B. Is greater for the fired bullet C. Is the same for each bullet D. Depends on how high they started E. None of these
C. Is the same for each bullet
100
An object that has kinetic energy must be A. Moving B. Falling C. At an elevated position D. At rest E. None of these
What is A. Moving
100
Your weight is a measure of your A. Momentum B. Energy C. Gravitational attraction to the Earth D. Rotational equilibrium E. All of these
What is C. Gravitational attraction to the Earth
100
Unlike a transverse wave, a longitudinal wave has no A. Amplitude B. Frequency C. Wavelength D. Speed E. …a longitudinal wave has all of these things
What is E. …a longitudinal wave has all of these things
100
A difference between electric forces and gravitational forces is that electrical forces include A. Separation distance B. Repulsive interactions C. The inverse-square law D. Infinite range E. None of these
What is B. Repulsive interactions
200
The path of a satellite about a small planet is A. Hyperbolic B. Elliptical C. Parabolic D. Not enough information given
What is Elliptical?
200
An object is raised above the ground gaining a certain amount of potential energy. If the same object is raised twice as high it gains A. Four times as much potential energy B. Twice as much potential energy C. Neither of these
What is B. Twice as much potential energy
200
An object maintains its state of motion because it has A. Mass B. Momentum C. Speed D. Acceleration E. All of these
What is A. Mass
200
In a longitudinal wave A. The compressions and rarefactions travel in the same direction B. The compressions and rarefactions travel in opposite directions C. Neither…only transverse waves have compressions and rarefactions
What is A. The compressions and rarefactions travel in the same direction
200
Charge carriers in a metal are electrons rather than protons because electrons are A. Loosely bound B. Lighter C. Far from a nucleus D. All of the above E. None of the above
What is D. All of the above
300
A ball is thrown 125 meters upward and then falls the same distance back to Earth. Its total time in the air is about A. 5 seconds B. 10 seconds C. 15 seconds D. More than 20 seconds
What is B. 10 seconds
300
An arrow is drawn so that it has 40 J of potential energy. When fired, the arrow will have a kinetic energy of A. Less than 40 J B. More than 40 J C. 40 J
What is C. 40 J
300
The force required to maintain an object at a constant speed in free space is equal to A. Zero B. The mass of the object C. The weight of the object D. The force required to stop it E. None of these
What is A. zero
300
The phenomenon of beats results from sound A. Refraction B. Reflection C. Interference D. All of the above E. None of the above
What is C. Interference
300
As more lamps are put into a series circuit, the overall current in the circuit A. Increases B. Decreases C. Stays the same
What is B. Decreases
400
In each second of fall, the distance a freely falling object will fall is about A. 5 m. B. 10 m. C. Equal amounts, but not 5 m or 10 m. D. Unequal amounts depending on the time of fall squared. E. None of these
What is D. Unequal amounts depending on the time of fall squared
400
An open freight car rolls friction free along a horizontal track in a pouring rain that falls vertically. As water accumulates in the car, its speed A. Increases B. Decreases C. Doesn’t change
What is B. Decreases
400
An object weighs 30 N on Earth. A second object weighs 30 N on the moon. Which has the greater mass? A. The one on Earth B. The one on the Moon C. They have the same mass D. Not enough information to say
What is B. The one on the Moon
400
Light refracts when traveling from air into glass because light A. Intensity is greater in air than in glass B. Intensity is greater in glass than in air C. Frequency is greater in air than in glass D. Frequency is greater in glass than in air E. Travels slower in glass than in air
What is E. Travels slower in glass than in air
400
As more lamps are put into a parallel circuit, the overall current in the circuit A. Increases B. Decreases C. Stays the same
What is A. Increases
500
A pot falls from a ledge and hits the ground 45 m below in 1.5 seconds. The speed with which it hits the ground is about A. 30 m/s B. 60 m/s C. 120 m/s D. More than 120 m/s
What is A. 30 m/s
500
A golf ball is thrown at and bounces away from a massive bowling ball that is initially at rest. After the collision, the bowling ball has more A. Momentum, but less kinetic energy than the golf ball. B. Kinetic energy, but less momentum than the golf ball. C. Momentum and more kinetic energy than the golf ball. D. …not enough information is given to say.
What is A. Momentum, but less kinetic energy than the golf ball.
500
A horse exerts 500 N of force on a heavy wagon. The wagon pulls back on the horse with an equal force. The wagon still accelerates because A. These forces are not an action-reaction pair B. Nevertheless there is still an unbalanced force on the wagon C. The horse pulls on the wagon a brief time before the wagon reacts D.…the wagon does not accelerate because these forces are equal and opposite E. None of these
What is B. Nevertheless there is still an unbalanced force on the wagon
500
A person standing waist-deep in a swimming pool appears to have short legs because of light A. Reflection B. Absorption C. Interference D. Diffraction E. Refraction
What is E. Refraction
500
Magnetism is due to the motion of electrons as they A. Move around the nucleus B. Spin on their axes C. Both of the above D. None of the above
What is C. Both of the above