2712153
Descripción
Test por Nicholas Weiss, actualizado hace más de 1 año
|
Creado por Nicholas Weiss
hace casi 9 años
|
|
Pregunta 1
Pregunta
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 _____.
Respuesta
-
Four times as much potential energy
-
Twice as much potential energy
-
Half as much potential energy
-
Neither of these
Pregunta 2
Pregunta
Car A has a mass of 1000kg and a speed of 30km/hr. Car B has a mass of 500kg and a speed of 60km/hr. What is true about their kinetic energies?
Respuesta
-
Car A's KE is twice Car B's KE
-
Car A's KE is equal to Car B's KE
-
Car A's KE is half of Car B's KE
-
Car A's KE is four times as muhc as Car B's KE
Pregunta 3
Pregunta
Two identical arrows, one with twice the kinetic energy of the other, are fired into a hay bale. The faster arrow will penetrate _____.
Respuesta
-
The same distance as the slower arrow
-
Twice as far as the slower arrow
-
Four times as far as the slower arrow
-
More than four times as far as the slower arrow
Pregunta 4
Pregunta
Which of the following is not a unit for power?
Respuesta
-
Joule per second
-
Watt
-
Newton-second
-
HorsePower
Pregunta 5
Pregunta
An object that has gravitational potential energy has this energy because of its _____.
Respuesta
-
Speed
-
Acceleration
-
Size
-
Position
Pregunta 6
Pregunta
A ball is projected into the air with 100 J of kinetic energy which is transformed to gravitational potential energy at the top of its trajectory. When it returns to its original level after encountering air resistance, its kinetic energy is _____.
Respuesta
-
Less than 100J
-
More than 100J
-
100J
-
Not enough information dude!
Pregunta 7
Pregunta
A feather and a coin dropped in a vacuum fall with equal _____.
Respuesta
-
Forces
-
Accelerations
-
Kinetic Energies
Pregunta 8
Pregunta
Two identical arrows, one with twice the speed of the other, are fired into a hay bale. The faster arrow will penetrate ____________.
Respuesta
-
The same distance as the slower arrow
-
Twice as far as the slower arrow
-
Four times as far as the slower arrow
-
More than four times as far as the slower arrow
Pregunta 9
Pregunta
An object that has kinetic energy must be _____.
Respuesta
-
Moving
-
Falling
-
At an elevated Position
Pregunta 10
Pregunta
Engine A has a power rating of 500W and Engine B has a power rating of 1000W. What is true?
Respuesta
-
Engine B can do more work than Engine A
-
Engine B can change more KE than Engine A
-
Engine A can do more work than Engine B
-
Both engines can do the same amount of work, but Engine B can do the work faster.
¿Quieres crear tus propios Tests gratis con GoConqr? Más información.