2891798
Descrição
Quiz por Nicholas Weiss, atualizado more than 1 year ago
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Criado por Nicholas Weiss
quase 9 anos atrás
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Questão 1
Questão
What is the unit for force?
Responda
-
Newtons
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Joules
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Watts
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kg
Questão 2
Questão
What are the units for energy?
Responda
-
Joule
-
Watts
-
Newtons
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Pounds
Questão 3
Questão
Weight is the same thing as mass.
Responda
- True
- False
Questão 4
Questão
The coefficient of friction is measured in________________.
Responda
-
N
-
kg
-
Joules
-
There are no units!
Questão 5
Questão
When you double the speed of the object you double its_____________________
Responda
-
Kinetic Energy
-
Potential Energy
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Momentum
Questão 6
Questão
145.000 has_______significant figures
Responda
-
3
-
4
-
5
-
6
Questão 7
Questão
The graph displays an objects position vs. time. During what time interval does the object have an acceleration?
Responda
-
A
-
B
-
C
-
D
Questão 8
Questão
The graph displays an objects position vs. time. During what time interval is the object not moving?
Responda
-
A
-
B
-
C
-
D
Questão 9
Questão
When does the object have a constant negative velocity?
Responda
-
A
-
B
-
C
-
D
Questão 10
Questão
Momentum is always conserved for a single object.
Responda
- True
- False
Questão 11
Questão
Total kinetic energy is always conserved for inelastic collisions.
Responda
- True
- False
Questão 12
Questão
Total kinetic energy is conserved during elastic collisions.
Responda
- True
- False
Questão 13
Questão
What determines the force of static friction acting on an object? (check all that apply)
Responda
-
The coefficient of friction between the surfaces.
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The normal force of the surface
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The speed of the object
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The energy of the object
Questão 14
Questão
When an projectile reaches its peak flight its___________________________. (check more than one box)
Responda
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Velocity is 0m/s
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Acceleration is 0m/s/s
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Vertical Velocity is 0m/s
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Horizontal Velocity is 0m/s
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Acceleration is -9.81m/s/s
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Force is 0N
Questão 15
Questão
When an object is accelerating we can use the d=rt formula to solve problems involving that object.
Responda
- True
- False
Questão 16
Questão
A projectiles vertical speed is constant (assuming no air resistance).
Responda
- True
- False
Questão 17
Questão
A projectile's horizontal speed (assuming no air resistance) is constant.
Responda
- True
- False
Questão 18
Questão
If the Earth somehow were to shrink to half of its size (but kept the same mass), what would happen to our weight (think universal law of gravity)
Responda
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It would double
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It would be cut in half
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It would quadruple
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It would be 1/4 the original
Questão 19
Questão
Centripetal acceleration acts _____________________.
Responda
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Tangent to the circular path.
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Away from the center
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To the center
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Along the path of the object in motion
Questão 20
Questão
Linear speed of a rotating object acts____________________.
Responda
-
To the center of motion.
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Away from the center of motion
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Tangential to the circular path
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Along the circular path
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