Chapter 9 Vocabulary: Question Preview (ID: 12831)

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How do you know when an object is in motion? Pick the BEST answer.
a) If it looks like it is moving.
b) If its distance from another object is not changing.
c) If it is on wheels.
d) If its distance from another object is changing.

What is a reference point?
a) the starting point of an object in motion.
b) a place or object used for comparison to determine if something is in motion.
c) a place or object moving away from an object which is not in motion.
d) the ending point of an object in motion.

What is the difference between displacement and distance?
a) Displacement is the length of the path between two points. Distance is the length of a straight line
b) Displacement is the length, while distance is the direction.
c) Distance is the length of the path between two points. Displacement is the length of a straight line
d) Distance is the length, while displacement is only the direction.

What is velocity?
a) Speed in a given direction.
b) Acceleration in a given direction.
c) Distance per unit of time.
d) Distance in a given direction.

Changes in velocity may be due to both changes in what two things?
a) time and acceleration
b) speed and distance
c) speed and direction
d) distance and the object

Acceleration refers to these three things
a) increase in speed, decrease in speed, and change in direction
b) decrease in speed, deceleration, and change in direction
c) increase in speed, decrease in speed, and rate
d) change in direction, change in speed, change in pace

The ability to do work or cause change is known as?
a) Job
b) Motion
c) Work
d) Energy

The kinetic energy of an object depends on what two things?
a) speed and direction
b) mass and speed
c) mass and difection
d) time and distance

Stored energy that results from the position or shape of an object is called?
a) Kinetic Energy
b) Potential Work
c) Kinetic Work
d) Potential Energy

According to the law of conservation of energy...
a) energy can be created or destroyed
b) energy can be neither created nor destroyed
c) work is done when an object is caused to move a certain distance
d) the ability to do work or cause change is known as energy

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