PHYS 165 MODULE 2
1. Kinematics
Answer the study of how objects move
2. Motion
Answer An object's position changes relative to a frame of reference
3. Frame of reference or reference frame
Answer a collection of objects that are considered to be stationary and used to describe the motion of
other objects
4. Different kinds of motion
Answer - linear constant velocity motion
- linear constant accelerated motion
- two-dimensional projectile motion
5. Origin
Answer the fixed place from which measurements are taken; the place where the position is zero
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,6. Motion diagram
Answer a diagram that shows the position of an object in equal time intervals
7. Why construct a motion diagram?
Answer It helps visualize details of an object's motion. Also the first step to making a
mathematical model of motion
8. Images that are equally spaced indicate...
Answer the object is moving at a constant speed
9. Images that are increasing in spacing indicate....
Answer an object that is speeding up
10. Images that are decreasing in spacing indicate....
Answer an object is slowing down
11. The Particle model of motion to describe its
Answer A model that represents an object as a single point motion.
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, 12. Why is the particle model useful?
Answer It allows ditterent objects with the same motion to be treated identically, regardless of size or
shape
13. Why are mathematical models essential?
Answer To solve problems numerically
14. Examples of mathematical models
Answer A graph and an equation
15. Mathematical model
Answer 1. Observe the motion
2. Describe the motion in words
3. Choose an origin
4. Choose an axis
5. Create a motion diagram
16. Slope
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1. Kinematics
Answer the study of how objects move
2. Motion
Answer An object's position changes relative to a frame of reference
3. Frame of reference or reference frame
Answer a collection of objects that are considered to be stationary and used to describe the motion of
other objects
4. Different kinds of motion
Answer - linear constant velocity motion
- linear constant accelerated motion
- two-dimensional projectile motion
5. Origin
Answer the fixed place from which measurements are taken; the place where the position is zero
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18
,6. Motion diagram
Answer a diagram that shows the position of an object in equal time intervals
7. Why construct a motion diagram?
Answer It helps visualize details of an object's motion. Also the first step to making a
mathematical model of motion
8. Images that are equally spaced indicate...
Answer the object is moving at a constant speed
9. Images that are increasing in spacing indicate....
Answer an object that is speeding up
10. Images that are decreasing in spacing indicate....
Answer an object is slowing down
11. The Particle model of motion to describe its
Answer A model that represents an object as a single point motion.
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18
, 12. Why is the particle model useful?
Answer It allows ditterent objects with the same motion to be treated identically, regardless of size or
shape
13. Why are mathematical models essential?
Answer To solve problems numerically
14. Examples of mathematical models
Answer A graph and an equation
15. Mathematical model
Answer 1. Observe the motion
2. Describe the motion in words
3. Choose an origin
4. Choose an axis
5. Create a motion diagram
16. Slope
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