Of the following terms, which is the product of force and time? Is it: w) impulse x) power y) energy z) work

Of the following terms, which is the product of force and time? Is it: w) impulse x) power y) energy z) work
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Answer :

ANSWER: W -- IMPULSE
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An impulse of 10 kilogram-meter per second acting on an object whose mass is 5 kilogram will cause a change in the objects velocity of: w) 0.5 meters per second x) 2 meters per second y) 10 meters per second z) 50 meters per second

Description : An impulse of 10 kilogram-meter per second acting on an object whose mass is 5 kilogram will cause a change in the objects velocity of: w) 0.5 meters per second x) 2 meters per second y) 10 meters per second z) 50 meters per second

Last Answer : ANSWER: X -- 2 METERS PER SECOND

Work is equal to which of the following? w) the cross product of force and displacement. x) the product of force times time y) force divided by time z) the dot product of force and displacementWork is equal to which of the following? w) the cross product of force and displacement. x) the product of force times time y) force divided by time z) the dot product of force and displacement

Description : Work is equal to which of the following? w) the cross product of force and displacement. x) the product of force times time y) force divided by time z) the dot product of force and displacement

Last Answer : ANSWER: Z -- THE DOT PRODUCT OF FORCE AND DISPLACEMENT 

Which of the following pair are vector quantities? w) time and space x) force and momentum y) energy and time z) momentum and mass e) mass

Description : Which of the following pair are vector quantities? w) time and space x) force and momentum y) energy and time z) momentum and mass e) mass

Last Answer : ANSWER: X -- FORCE and MOMENTUM 

When a charge moves through an electric circuit in the direction of an electric force it does one of the following four things. Does it: w) lose potential energy and gain kinetic energy x) gain potential energy and lose kinetic energy y) lose both potential and kinetic energy z) gain both potential and kinetic energy

Description : When a charge moves through an electric circuit in the direction of an electric force it does one of the following four things. Does it: w) lose potential energy and gain kinetic energy x) ... lose kinetic energy y) lose both potential and kinetic energy z) gain both potential and kinetic energy

Last Answer : ANSWER: W -- LOSE POTENTIAL ENERGY AND GAIN KINETIC ENERGY

A hiker stands at the bottom of steep hill. The hiker may follow a straight line path to the top of the hill, a distance of 300 feet, or she may follow a zig-zag path to the top of the hill and walk a distance of 600 feet. The work done by the force of gravity along the zig-zag path is how many times the work going along the straight path? Is it: w) equal x) twice y) 4 times z) 8 times?

Description : A hiker stands at the bottom of steep hill. The hiker may follow a straight line path to the top of the hill, a distance of 300 feet, or she may follow a zig-zag path to the top of the hill and walk a ... times the work going along the straight path? Is it: w) equal x) twice y) 4 times z) 8 times?

Last Answer : ANSWER: W -- EQUAL 

A train locomotive whose mass is 1 x 106 kilograms is traveling EAST at a speed of 100 kilometers per hour. A NORTHERLY wind is applying a force of 100 Newtons on the locomotive. How much work is the wind doing on the locomotive for each 10 meters it travels? w) 0 joules x) 1,000 joules y) 10,000 joules z) 100,000 joules

Description : A train locomotive whose mass is 1 x 106 kilograms is traveling EAST at a speed of 100 kilometers per hour. A NORTHERLY wind is applying a force of 100 Newtons on the locomotive. How much work is the wind doing ... 10 meters it travels? w) 0 joules x) 1,000 joules y) 10,000 joules z) 100,000 joules

Last Answer : ANSWER: W -- 0 JOULES

The work done by a friction force is: w) always positive x) always negative y) always zero z) either positive or negative depending upon the situation.

Description : The work done by a friction force is: w) always positive x) always negative y) always zero z) either positive or negative depending upon the situation. 

Last Answer : ANSWER: X -- ALWAYS NEGATIVE

Which of the following terms refer to the amount of heat needed to raise the temperature of a unit mass of a substance through one degree? w) Heat of fusion x) Liquification heat y) Internal heat z) Specific heat

Description : Which of the following terms refer to the amount of heat needed to raise the temperature of a unit mass of a substance through one degree? w) Heat of fusion x) Liquification heat y) Internal heat z) Specific heat

Last Answer : ANSWER: Z -- SPECIFIC HEAT

Newton's second law states that the net force acting on a body is equal to the body's time rate of change of: w) acceleration x) mass y) momentum z) inertia

Description : Newton's second law states that the net force acting on a body is equal to the body's time rate of change of: w) acceleration x) mass y) momentum z) inertia

Last Answer : ANSWER: Y -- MOMENTUM

The time needed for a net force of 10 newtons to change the velocity of a 5 kilograms mass by 3 meters/second is: w) 1.5 seconds x) 6 seconds y) 16.7 seconds z) 150 seconds

Description : The time needed for a net force of 10 newtons to change the velocity of a 5 kilograms mass by 3 meters/second is: w) 1.5 seconds x) 6 seconds y) 16.7 seconds z) 150 seconds

Last Answer : ANSWER: W -- 1.5 SECONDS

Susan pushes against a 100 kilogram rock with a force of 5 Newtons, but the rock doesn't move. The force the rock exerts on Susan is w) 0 Newtons x) 5 Newtons y) 20 Newtons z) 100 Newtons

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Last Answer : ANSWER: X -- 5 NEWTONS

The temperature of a gas is held constant while its volume is reduced. The pressure the gas exerts on the walls of its container increases because its molecules: w) strike the container walls more often x) strike the container walls with higher speeds y) strike the container walls with greater force z) all of the above

Description : The temperature of a gas is held constant while its volume is reduced. The pressure the gas exerts on the walls of its container increases because its molecules: w) strike the container walls more ... walls with higher speeds y) strike the container walls with greater force z) all of the above

Last Answer : ANSWER: W -- STRIKE THE CONTAINER WALLS MORE OFTEN

If the resultant force acting on a body of constant mass is zero, the body's acceleration is: w) increasing x) decreasing y) always zero z) negative.

Description : If the resultant force acting on a body of constant mass is zero, the body's acceleration is: w) increasing x) decreasing y) always zero z) negative.

Last Answer : ANSWER: Y -- ALWAYS ZERO 

Two bodies each have a mass 'M'. If the mass of each body is doubled, the force of attraction between the two bodies is: w) twice the original force x) 1/4 the original force y) 4 times the original force z) unchanged

Description : Two bodies each have a mass 'M'. If the mass of each body is doubled, the force of attraction between the two bodies is: w) twice the original force x) 1/4 the original force y) 4 times the original force z) unchanged

Last Answer : ANSWER: Y -- 4 TIMES THE ORIGINAL FORCE

If the distance between the centers of mass of two bodies is doubled, the gravitational force between the bodies will become what portion of the original force: w) double x) one half y) remain the same z) one quarter

Description : If the distance between the centers of mass of two bodies is doubled, the gravitational force between the bodies will become what portion of the original force: w) double x) one half y) remain the same z) one quarter

Last Answer : ANSWER: Z -- ONE QUARTER

The Grand Unified Theory of the forces of nature combines three of the four forces. Which force is NOT included? w) gravitational x) electromagnetic y) weak nuclear z) strong nuclear

Description : The Grand Unified Theory of the forces of nature combines three of the four forces. Which force is NOT included? w) gravitational x) electromagnetic y) weak nuclear z) strong nuclear

Last Answer : ANSWER: W -- GRAVITATIONAL

For a point charge to feel a net force in a homogeneous magnetic field, which one of the following statements is true? The charge must: w) move parallel to the magnetic lines of flux x) have a component of its motion perpendicular to the lines of flux y) be stationary z) be a positive charge

Description : For a point charge to feel a net force in a homogeneous magnetic field, which one of the following statements is true? The charge must: w) move parallel to the magnetic lines of flux x) have a component of its motion perpendicular to the lines of flux y) be stationary z) be a positive charge

Last Answer : ANSWER: X -- HAVE A COMPONENT OF ITS MOTION PERPENDICULAR TO THE LINES OF FLUX 

A round viewing window with a 20 centimeter diameter is installed in a tank at the Shedd Aquarium. It is 5 meters below the water surface. The force on the window is approximately: w) 1,500 Newtons x) 10,000 Newtons y) 25,000 Newtons z) 50,000 Newtons

Description : A round viewing window with a 20 centimeter diameter is installed in a tank at the Shedd Aquarium. It is 5 meters below the water surface. The force on the window is approximately: w) 1,500 Newtons x) 10,000 Newtons y) 25,000 Newtons z) 50,000 Newtons

Last Answer : ANSWER: W -- 1,500 NEWTONS

Magnetic lines of force have all but one of the following characteristics. The one that they DO NOT have is: w) they go from the South-pole to the North-pole of a magnet outside of the magnet x) they are most concentrated at the poles of a magnet y) they pass through copper z) they never cross one another

Description : Magnetic lines of force have all but one of the following characteristics. The one that they DO NOT have is: w) they go from the South-pole to the North-pole of a magnet outside of the magnet ... most concentrated at the poles of a magnet y) they pass through copper z) they never cross one another

Last Answer : ANSWER: W -- THEY GO FROM THE SOUTH-POLE TO THE NORTH-POLE OF THE M AGNET 

When the speed of a train moving on a circular track is doubled, the centripetal force acting on the train does one of the following. Does the force: w) remain the same x) increase by a factor of 2 y) increase by a factor of 4 z) increase by a factor of 8

Description : When the speed of a train moving on a circular track is doubled, the centripetal force acting on the train does one of the following. Does the force: w) remain the same x) increase by a factor of 2 y) increase by a factor of 4 z) increase by a factor of 8

Last Answer : ANSWER: Y -- INCREASE BY A FACTOR OF 4

Pressure is equal to: w) Area divided by force x) force divided by area y) area times force z) area minus force

Description : Pressure is equal to: w) Area divided by force x) force divided by area y) area times force z) area minus force

Last Answer : ANSWER: X -- FORCE DIVIDED BY AREA

A 500 kilogram car moving at 20 meters per second strikes a stone wall and is brought to a halt in 0.1 second. The average force of the car on the wall during impact is: w) 10 Newtons x) 1000 Newtons y) 10,000 Newtons z) 100,000 Newtons

Description : A 500 kilogram car moving at 20 meters per second strikes a stone wall and is brought to a halt in 0.1 second. The average force of the car on the wall during impact is: w) 10 Newtons x) 1000 Newtons y) 10,000 Newtons z) 100,000 Newtons

Last Answer : ANSWER: Z -- 100,000 NEWTONS

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Description : In the Millikan oil-drop experiment the UPWARD force on the drop is due to the: w) gravitational and electric fields x) gravitational field and the charge on the drop y) electric field and the size of the drop z) electric field and the charge on the drop

Last Answer : ANSWER: Z -- ELECTRIC FIELD AND THE CHARGE ON THE DROP 

Two negative point charges are 2 meters apart and repel each other with a force of 2 newtons. When the distance between the charges is doubled, the force between them is w) one fourth as great x) one half as great y) twice as great z) four times as great

Description : Two negative point charges are 2 meters apart and repel each other with a force of 2 newtons. When the distance between the charges is doubled, the force between them is w) one fourth as great x) one half as great y) twice as great z) four times as great

Last Answer : ANSWER: W -- ONE FOURTH AS GREAT

Carlos is pulling a 40 kilogram cart with a horizontal force of 100 newtons. The force of friction on the cart is 20 newtons. The acceleration of the cart is: w) 2 meters per second squared x) 2.5 meters per second squared y) 20 meters per second squared z) 200 meters per second squared

Description : Carlos is pulling a 40 kilogram cart with a horizontal force of 100 newtons. The force of friction on the cart is 20 newtons. The acceleration of the cart is: w) 2 meters per second squared x) 2.5 meters per second squared y) 20 meters per second squared z) 200 meters per second squared

Last Answer : ANSWER: W -- 2 METERS PER SECOND SQUARED

The force on a charged particle moving parallel to magnetic field lines is: w) in the direction of the field x) zero y) perpendicular to the field z) in the opposite direction of the field

Description : The force on a charged particle moving parallel to magnetic field lines is: w) in the direction of the field x) zero y) perpendicular to the field z) in the opposite direction of the field

Last Answer : ANSWER: X -- ZERO

Which of the following forces is nonconservative? w) gravitational force x) electrostatic force y) sliding frictional force z) restorative force of a spring

Description : Which of the following forces is nonconservative? w) gravitational force x) electrostatic force y) sliding frictional force z) restorative force of a spring

Last Answer : ANSWER: Y -- SLIDING FRICTIONAL FORCE 

Which of the following statements dealing with simple harmonic motion of a mass-spring system is TRUE? w) The acceleration is largest when the oscillating mass is instantaneously at rest. x) The larger the spring force constant the larger the period. y) The period of the motion depends linearly on the amplitude of the motion. z) The acceleration is larger when the oscillating mass has its greatest velocity.

Description : Which of the following statements dealing with simple harmonic motion of a mass-spring system is TRUE? w) The acceleration is largest when the oscillating mass is instantaneously at rest. x) The ... of the motion. z) The acceleration is larger when the oscillating mass has its greatest velocity.

Last Answer : ANSWER: W -- THE ACCELERATION IS LARGEST WHEN THE OSCILLATING MASS IS INSTANTANEOUSLY AT REST 

When a 2 kilogram mass is suspended from a spring, the spring stretches 4 cm. The force constant of the spring is approximately:+ w) .5 newtons per meter x) 5 newtons per meter y) 50 newtons per meter z) 500 newtons per meter

Description : When a 2 kilogram mass is suspended from a spring, the spring stretches 4 cm. The force constant of the spring is approximately:+ w) .5 newtons per meter x) 5 newtons per meter y) 50 newtons per meter z) 500 newtons per meter

Last Answer : ANSWER: Z -- 500 NEWTONS PER METER

A spring with a force constant k is cut into thirds. The force constant of each of the new springs is w) k x) 3k y) (1/3)k (read: one third k) z) 9k

Description : A spring with a force constant k is cut into thirds. The force constant of each of the new springs is w) k x) 3k y) (1/3)k (read: one third k) z) 9k 

Last Answer : ANSWER: X -- 3k

What law describes the force between two stationary electrically charged objects? w) Ampere's law x) Coulomb's law y) Kirchoff's Rules (pron: kir-koff rules) z) Ohm's law

Description : What law describes the force between two stationary electrically charged objects? w) Ampere's law x) Coulomb's law y) Kirchoff's Rules (pron: kir-koff rules) z) Ohm's law

Last Answer : ANSWER: X -- COULOMB'S LAW

A satellite is observed to move in a circle about the earth at a constant speed. This means that the force acting upon it is: w) zero x) parallel to the direction of the satellite's instantaneous velocity y) perpendicular to the direction of the satellite's instantaneous velocity z) none of the above

Description : A satellite is observed to move in a circle about the earth at a constant speed. This means that the force acting upon it is: w) zero x) parallel to the direction of the satellite ... velocity y) perpendicular to the direction of the satellite's instantaneous velocity z) none of the above

Last Answer : ANSWER: Y -- PERPENDICULAR TO THE INSTANTANEOUS DIRECTION OF THE SATTELITE’S VELOCITY

A force applied to a rocket gives it an upward acceleration equal to 2 times the acceleration of gravity. The magnitude of the force is equal to: w) the weight of the rocket x) twice the weight of the rocket y) three times the weight of the rocket z) four times the weight of the rocket

Description : A force applied to a rocket gives it an upward acceleration equal to 2 times the acceleration of gravity. The magnitude of the force is equal to: w) the weight of the rocket x) twice the weight of the rocket y) three times the weight of the rocket z) four times the weight of the rocket

Last Answer : ANSWER: Y -- THREE TIMES THE WEIGHT OF THE ROCKET

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Description : A spring with a force constant of 100 Newtons per meter is loaded with a mass of 1.0 kilogram. The period of vibration of this system is: w) .03 seconds x) .06 seconds y) .31 seconds z) .63 seconds

Last Answer : ANSWER: Z -- .63 SECONDS 

A car is moving along a straight horizontal road at a speed of 20 meters per second. The brakes are applied and a constant force of 5000 Newtons decelerates the car to a stop in 10 seconds. The mass of the car is: w) 1250 kilograms x) 2500 kilograms y) 5000 kilograms z) 10,000 kilograms

Description : A car is moving along a straight horizontal road at a speed of 20 meters per second. The brakes are applied and a constant force of 5000 Newtons decelerates the car to a stop in 10 seconds. The mass of the car is: w) 1250 kilograms x) 2500 kilograms y) 5000 kilograms z) 10,000 kilograms

Last Answer : ANSWER: X -- 2500 KILOGRAMS

If the distance between the earth and moon were halved, the force of the attraction between them would be: w) one fourth as great x) one half as great y) twice as great z) four times as great

Description : If the distance between the earth and moon were halved, the force of the attraction between them would be: w) one fourth as great x) one half as great y) twice as great z) four times as great 

Last Answer : ANSWER: Z -- FOUR TIMES AS GREAT

Two steel balls are at a distance S from one another. As the mass of ONE of the balls is doubled, the gravitational force of attraction between them is: w) quartered x) halved y) doubled z) quadrupled

Description : Two steel balls are at a distance S from one another. As the mass of ONE of the balls is doubled, the gravitational force of attraction between them is: w) quartered x) halved y) doubled z) quadrupled

Last Answer : ANSWER: Y -- DOUBLED 

A 10 kilogram mass rests on a horizontal frictionless surface. A horizontal force of 5 Newtons is applied to the mass. After the force has been applied for 1 second, the velocity of the mass is: w) 0 meters per second x) 0.5 meters per second y) 5 meters per second z) 50 meters per second

Description : A 10 kilogram mass rests on a horizontal frictionless surface. A horizontal force of 5 Newtons is applied to the mass. After the force has been applied for 1 second, the velocity of the mass is: w) 0 meters per second x) 0.5 meters per second y) 5 meters per second z) 50 meters per second

Last Answer : ANSWER: X -- 0.5 METERS PER SECOND

The force acting between two point charges can be computed using which of the following laws? w) Ohm's Law x) Ampere's Law y) Coulomb's Law z) Newton's Second Law.

Description : The force acting between two point charges can be computed using which of the following laws? w) Ohm's Law x) Ampere's Law y) Coulomb's Law z) Newton's Second Law.

Last Answer : ANSWER: Y -- COULOMB'S LAW

If the resultant force acting on a body of constant mass is zero, the body's momentum is: w) increasing x) decreasing y) always zero z) constant

Description : If the resultant force acting on a body of constant mass is zero, the body's momentum is: w) increasing x) decreasing y) always zero z) constant

Last Answer : ANSWER: Z -- CONSTANT

If the distance between two objects, each of mass 'M', is tripled, the force of attraction between the two objects is: w) 1/2 the original force x) 1/3 the original force y) 1/9 the original force z) unchanged

Description : If the distance between two objects, each of mass 'M', is tripled, the force of attraction between the two objects is: w) 1/2 the original force x) 1/3 the original force y) 1/9 the original force z) unchanged

Last Answer : ANSWER: Y -- 1/9 THE ORIGINAL FORCE 

The gravitational potential energy between two bodies is inversely proportional to: w) the cube of the distance x) the first power of the distance y) the square of the distance z) it has no relation to distance

Description : The gravitational potential energy between two bodies is inversely proportional to: w) the cube of the distance x) the first power of the distance y) the square of the distance z) it has no relation to distance

Last Answer : ANSWER: X -- THE FIRST POWER OF THE DISTANCE

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Description : Out of the following pairs, which one does not have identical dimension? (1) Moment of inertia and moment of a force (2) Work and Torque (3) Angular momentum and Planck's constant (4) Impulse and Momentum

Last Answer : (1) Moment of inertia and moment of a force

Which of the following terms refers to the energy released when an electron is added to a neutral atom? w) electrovalence x) electron affinity y) electroconductance z) none of these

Description : Which of the following terms refers to the energy released when an electron is added to a neutral atom? w) electrovalence x) electron affinity y) electroconductance z) none of these

Last Answer : ANSWER: X -- ELECTRON AFFINITY

Energy is described as the capacity for: w) reactivity x) combustion y) transformation z) doing work

Description : Energy is described as the capacity for: w) reactivity x) combustion y) transformation z) doing work

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An ice skater is rotating with her arms extended. When she pulls in her arms her rate of rotation increases. Which of the following statements dealing with the process is TRUE? w) Her moment of inertia is increased. x) Kinetic energy is conserved. y) The skater does work when pulling in her arms. z) Angular momentum is increased.

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Description : When light is traveling through a vacuum, what is the product of the light's wavelength and frequency equal to? w) speed of light x) Plank's constant y) momentum z) wave number

Last Answer : ANSWER: W -- SPEED OF LIGHT

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Description : While catching a ball, a player pulls down his hands to lower the - (1) force/cy (2) momentum (3) impulse (4) catching time

Last Answer : (3) impulse

While catching a ball, a player pulls down his hands to lower the – (1) force (2) momentum (3) impulse (4) catching time

Description : While catching a ball, a player pulls down his hands to lower the – (1) force (2) momentum (3) impulse (4) catching time

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