20403567
Beschreibung
Quiz von Ryan Elwell, aktualisiert more than 1 year ago
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Erstellt von Ryan Elwell
vor mehr als 4 Jahre
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Frage 1
Frage
Which of the following is the fundamental unit for a force?
Antworten
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Meter
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kg*m/s
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m/s^2
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kg*m/s^2
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m*kg^2
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m*s/kg
Frage 2
Frage
Which of the following is Newton's Second Law?
Antworten
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An object at rest will remain at rest until acted upon by an outside, unbalanced force
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Every force has an equal and opposite reaction force
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Energy cannot be created or destroyed, only transferred from one object to another
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The acceleration of an object is equal to the net force acting on it divided by the mass of the object
Frage 3
Frage
Which of the following is true for the force of gravity?
Antworten
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On Earth, it is always directed straight down, toward the Earth's center
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It is always 9.8 m/s^2
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It is also referred to as an objects 'weight'
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It acts on all objects equally
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Keeping everything else the same, if you double an object's mass, you double the force of gravity acting upon it.
Frage 4
Frage
What is the force of gravity acting on an object with a mass of 2.5 kg?
Hint: You can use 10 m/s^2 for the acceleration due to gravity.
The first blank is for the value. The second blank is for the units.
F = [blank_start]25[blank_end] [blank_start]N[blank_end]
Antworten
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25
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N
Frage 5
Frage
The force of [blank_start]friction[blank_end] is the force that resists all motion.
Antworten
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friction
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gravity
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normal
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tension
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compression
Frage 6
Frage
Put the appropriate forces in the correct spot for this object, a box acceleration to the right due to an applied force.
Image:
Fbd (binary/octet-stream)
Antworten
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Normal
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Gravity
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Friction
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Applied
Frage 7
Frage
What is the net force acting on this object?
First blank is for the value. Second blank is for the units. Third blank is for the direction.
Net Force = [blank_start]17[blank_end] [blank_start]N[blank_end] [blank_start]Right[blank_end]
Image:
Fbd (binary/octet-stream)
Antworten
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17
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N
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Right
Frage 8
Frage
What is the net force on a object with the following forces acting upon it:
First blank is the resultant value. Second blank is the units. Third blank is the angle from the + x axis.
+x = 10 N
- x = 13 N
+y = 0 N
- y = 4 N
R = [blank_start]5[blank_end] [blank_start]N[blank_end] @ [blank_start]240[blank_end] degrees
Antworten
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5
-
N
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240
Frage 9
Frage
[blank_start]Gravity[blank_end] is the force between all masses.
[blank_start]Friction[blank_end] is the force that resists all motion.
[blank_start]Normal[blank_end] is the force that resists an object being pulled into another object. It is always 90 degrees to its surface.
Antworten
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Gravity
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Friction
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Normal
Frage 10
Frage
A 10 kg box is moving on a rough surface with a speed of 1 m/s. It comes to rest in 2 seconds. What is the force of friction acting on the box?
Antworten
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0.5 N
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5 N
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50 N
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500 N
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