
Introduction to Work
Authored by neal lasta
Physics
12th Grade
Used 53+ times

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31 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The Kinetic Energy of an object changes when
its final velocity = its initial velocity
the object accelerates
no net force acts on the object
the object moves in constant velocity
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Consider this ball with an initial velocity pointing East. If the ball accelerates with direction East, what happens to the velocity of the object?
The velocity of the object decreases as it moves East
The velocity of the object remains constant
The velocity of the object increases as it moves East
The velocity of the object increases as it moves West
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If the acceleration of this ball points to the west,
the ball will slow down until it comes to a stop, then begin accelerating to the west
the ball will start speeding up to the west
the ball will start speeding up to the east
the ball will move at constant velocity
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
This box has a westward acceleration. Which of the following statements is true?
the sum of all forces acting on the box is zero.
there is only one force acting on the box, and that is directed west.
the sum of all forces acting on the box is non-zero, and is directed west
there is only one force acting on the box, and that force is directed East
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Man pushes on the 10 kg box with a horizontal force FP = 10.0 N i (i-hat). If the net force ΣFx = 8.0 N i, then what is the friction force acting on the box?
2.0 N j
18.0 N i
1.25 N (-i)
2.0 N (-i)
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
At the moment shown in this picture, what is the acceleration of the box along the horizontal?
0.4 m/s2
0.6 m/s2
0.8 m/s2
1 m/s2
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
If the box starts from rest, and FP and Fs are constant, then what is the final velocity of the box after 2 seconds of pushing?
1.6 m/s, East
1.8 m/s, East
2.0 m/s, East
2.2 m/s,East
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