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Questions and Answers
Distance is always a positive number because it is a scalar.
Distance is always a positive number because it is a scalar.
True (A)
Which of these describes the location of an object with respect to a starting point?
Which of these describes the location of an object with respect to a starting point?
A car that is traveling at 55 km/h is moving faster than another car traveling at -55 km/h.
A car that is traveling at 55 km/h is moving faster than another car traveling at -55 km/h.
False (B)
What does a zero slope on a velocity-time graph indicate about an object's motion?
What does a zero slope on a velocity-time graph indicate about an object's motion?
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To find distance when given time and velocity you ______ the two
To find distance when given time and velocity you ______ the two
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What represents the velocity at the beginning of a time interval?
What represents the velocity at the beginning of a time interval?
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What is equal to the slope of a displacement-time graph?
What is equal to the slope of a displacement-time graph?
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Match the following terms with their definition:
Match the following terms with their definition:
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What quantity indicates how far an object has traveled without specifying direction?
What quantity indicates how far an object has traveled without specifying direction?
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A dog walks east at 5.9 m/s. How long will it take to travel 210.0 m?
A dog walks east at 5.9 m/s. How long will it take to travel 210.0 m?
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What does the slope of a position-time graph represent?
What does the slope of a position-time graph represent?
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Which of these is a vector quantity?
Which of these is a vector quantity?
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If the final distance of a trip is +19.8 m, and the change in distance is +7.3 m, where was the starting point?
If the final distance of a trip is +19.8 m, and the change in distance is +7.3 m, where was the starting point?
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The rate of change of velocity of an object is indicated by its ____.
The rate of change of velocity of an object is indicated by its ____.
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An object with a positive initial velocity and negative acceleration will always increase in velocity.
An object with a positive initial velocity and negative acceleration will always increase in velocity.
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What is the position of the object at 5.0 seconds according to the provided Position-Time graph?
What is the position of the object at 5.0 seconds according to the provided Position-Time graph?
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What is the average velocity of the object over the first 11.0 seconds, according to the provided Position-Time graph?
What is the average velocity of the object over the first 11.0 seconds, according to the provided Position-Time graph?
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According to the provided Position-Time graph, during what interval(s) is the object moving forward?
According to the provided Position-Time graph, during what interval(s) is the object moving forward?
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According to the provided Position-Time graph, the object is moving backward during interval C.
According to the provided Position-Time graph, the object is moving backward during interval C.
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What is the displacement of the object from 6.0 s to 14.0 s according to the provided Position-Time graph?
What is the displacement of the object from 6.0 s to 14.0 s according to the provided Position-Time graph?
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A cheetah can run with a maximum speed of 110 km/hr. If his sprint lasts 5.0 s, he will travel approximately ______ meters.
A cheetah can run with a maximum speed of 110 km/hr. If his sprint lasts 5.0 s, he will travel approximately ______ meters.
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Match the description with the associated term:
Match the description with the associated term:
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You leave your place at 3:00 pm and drive for 100 km. When you arrive at your destination it is 5:00 pm. What was your average velocity?
You leave your place at 3:00 pm and drive for 100 km. When you arrive at your destination it is 5:00 pm. What was your average velocity?
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Study Notes
Physics Test - Part A
- Rate of change: Defined as the change in state divided by the change in time
- Distance vs. Position: Distance is a scalar (magnitude only) measuring total travel, while position is a vector (magnitude and direction) indicating location relative to a reference point
- Speed vs. Velocity: Speed is the rate of distance covered (scalar), while velocity is the rate of change of position (vector)
- Velocity calculations: Velocity equals change in distance over time
- Position-time graphs: Slope of the graph represents velocity
- Vector quantities: Examples include velocity and displacement, these have both magnitude and direction
Definitions
- Speed: The rate at which an object covers distance, always positive, no direction
- Velocity: A vector quantity that involves displacement over time, and can be negative
True/False Questions
- Moving objects: Positive slopes on velocity-time graphs indicate moving objects
- Distance vs. direction: Distance is always positive, while vector quantities like displacement can be negative.
- Circular paths: When an object completes a circular path, its average velocity is zero
- Relative motion: A car traveling at 55km/h is moving faster than a car traveling at -55km/h
- Horizontal lines: A horizontal line on a position-time graph indicates the object is stationary
- Accelerating objects: A zero slope on a velocity-time graph means no change in velocity (no acceleration) - object may be travelling at constant velocity
- Velocity vs. distance: Velocity uses displacement, while distance refers to total travel
- Calculating distance: Distance is not determined by dividing time and velocity in this context
Diagrams (Part B)
- Position-Time Graph Analysis: Analyze graphs to determine position, velocity (from slope), intervals of motion (forward, backward, rest), and displacement over specific time intervals
- Problem-solving with graphs: Questions require a practical application of principles learned
Other Problems (Part C & D)
- Average Velocity Calculation: Example calculation of average velocity given distance and time
- Distance calculation: Calculate the distance traveled given velocity and time
- Displacement Calculation for a closed path: Determine displacement for a closed path situation
- Speed and Velocity Calculations/Definitions: Includes calculation given time and velocity, displacement, and the difference between speed and velocity.
- Time Calculation: Calculation for time given velocity and distance.
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Description
Test your understanding of key physics concepts such as rate of change, speed versus velocity, and distance versus position. This quiz includes definitions and true/false questions to assess your grasp of these fundamental topics. Prepare to analyze graphs and understand vector quantities!
