20405008
Descripción
Test por Ryan Elwell, actualizado hace más de 1 año
|
Creado por Ryan Elwell
hace alrededor de 5 años
|
|
Pregunta 1
Pregunta
Centripetal Force is a byproduct of which of Newton's Laws of Motion?
Respuesta
-
Newton's First Law
-
Newton's Second Law
-
Newton's Third Law
-
Universal Gravitation
Pregunta 2
Pregunta
Which of the following statements about the coefficient of friction is correct?
Respuesta
-
It has no units
-
It depends on mass
-
It depends on the surfaces in contact only
-
It is a higher value when objects are not in motion
Pregunta 3
Pregunta
What is the centripetal force acting on a 1.0 kg ball being spun in a circle with radius of 0.25 meters at a speed of 3.0 m/s?
F = [blank_start]32[blank_end] N
Respuesta
-
32
Pregunta 4
Pregunta
Which direction will the ball travel if the string breaks at this point?
Image:
Ballstring (image/gif)
Respuesta
-
1
-
2
-
3
-
4
Pregunta 5
Pregunta
Which of the following are true of the spring force?
Respuesta
-
It is restorative
-
It is always opposite the direction of stretch
-
It is always pulling toward equilibrium
-
It can push or pull
-
It is measured in Newtons
Pregunta 6
Pregunta
Which of the following statements is true?
Respuesta
-
The value is zero for the y component of the T1 Force
-
The force of gravity is equal to the sum of the y components of T1 and T2
-
The force of gravity is equal to the y component of T2
-
T2 > T1
Pregunta 7
Pregunta
A wooden pallet carrying a load of 600.0 kg rests on a wooden floor and the mu value is 0.280 between the two items. A forklift driver decides to push it without lifting it. What force must be applied to just get the pallet moving?
F = [blank_start]1650[blank_end] N
Respuesta
-
1650
Pregunta 8
Pregunta
A spring with a natural height of 57 mm is compressed by a 300 g mass to a new height of 51 mm. What is the spring constant for this spring?
The first blank is for the numerical value. The second blank is the units. Put a space between EACH character for the units!
k = [blank_start]750[blank_end] [blank_start]N / m[blank_end]
Respuesta
-
750
-
N / m
Pregunta 9
Pregunta
What values should be plotted on the x and y axes of a Cartesian graph in order to provide a line whose slope will give you the spring constant?
Respuesta
-
x = displacement y = force
-
x = force y = gravity
-
x = distance y = displacement
-
x = distance y = time
Pregunta 10
Pregunta
A block is at rest on a slope. What direction does friction act?
Respuesta
-
There is no friction is the block is not moving
-
Friction is acting downwards into the slope
-
Friction is acting upwards, parallel to the slope
-
Friction is acting downwards, parallel to the slope
¿Quieres crear tus propios Tests gratis con GoConqr? Más información.