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T2 Final Review Flashcards | StudBud
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T2 Final Review
T2 Final Review
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Questions
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Answers
1
Where is the object turning around?
1 s
5 s
3 s
4 s
2
A shot bullet has what kind of energy
thermal
elastic potential
kinetic
gravitational potential
3
When the line on a velocity vs time graph increases in negative value the object is
changing direction
constant speed
speeding up
slowing down
4
Energy can be
transformed
destroyed
created
5
When an object changes direction the ENERGY
is transformed into potential
is still kinetic
is all potential
6
If an object is observed to act strangely, you can assume
the laws of physics are wrong
the object cannot be understood
Law of Conservation of Energy is wrong
there is a reason and science can be used to explain it
7
Which object would have the greatest KE?
m = 1 kg v = 2 m/s
m = 65 kg v = 1 m/s
m = 12 kg v = 10 m/s
m = 40 kg v = 2 m/s
8
Where is the object at a constant speed?
B & C
B & D
A
B
9
When the line on a velocity vs time graph crosses the x-axis (zero), what is happening
changing direction
constant speed
speeding up
slowing down
10
A boulder on the edge of a cliff has what kind of energy
kinetic
gravitational potential
thermal
elastic potential
11
Energy that is wasted becomees
thermal
kinetic
elastic potential
gravitational potential
12
What is the net force on the object
38 N left
20 N left
38 N right
20N right
13
A twisted rubber band has what kind of energy
gravitational potential
elastic potential
thermal
kinetic
14
A pulled back rubber band has what kind of energy
thermal
kinetic
elastic potential
gravitational potential
15
A vector has
only direction
only amounts
amounts and directions
16
What is happening at t = 2
constant speed right
slowing down left
constant speed left
speeding up left
17
When an object changes direction the FORCE on it
is perpendicular to the original motion
is in the direction of the original motion
is in the opposite direction of the original motion
is balanced
