id0617045
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1. ____ is defined as a force acting over a distance
A. Power
B. Energy
C. Work <--
D. Potential energy

3. The unit that represents 1 Joule of work done each second is the
A. Power
B. Newton
C. Watt <--
D. Mechanical advantage

4. Which of the following situations does not involve potential energy being changed into kinetic energy?
A. An apple falling from a tree
B. Shooting a dart from a spring-loaded gun
C. Pulling back on the string of a bow <--
D. A creek flowing downstream

5. ____ is determined by both mass and velocity
A. Work
B. Power
C. Potential Energy
D. Kinetic Energy <--

6. Energy that does not involve the large-scale motion or position of objects in a system is called
A. Potential energy
B. Mechanical energy
C. Nonmechanical energy <--
D. Conserved energy

Need help checking over my answers. Some I am not sure on.. especially number four.

Respuesta :

AL2006

1. Work (C) is defined as a force acting over a distance

3. The unit that represents 1 Joule of work done each second is the Watt. (C)

4. Pulling back on the string of a bow (C) does not involve potential energy being changed into kinetic energy?

5. Kinetic energy is determined by both mass and velocity

6. Energy that does not involve the large-scale motion or position of objects in a system is called  (I'm not sure; could be nonmechanical or potential)

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