Physics: Speed and Velocity Quiz

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Questions and Answers

What is speed?

Speed is the distance an object travels in a certain amount of time.

What is the formula for speed?

Speed (S) = Distance (d) / Time (t)

Which of the following is NOT a unit of speed?

  • m/s
  • cm/sec (correct)
  • m/min
  • km/h

Suppose a person runs 2 meters in 10 seconds. What is their speed?

<p>0.2 m/s</p>
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A car travels 240 kilometers in 3 hours. What is the car's speed?

<p>80 km/h</p>
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What is velocity?

<p>Velocity is the speed of an object, but the direction is also included.</p>
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What is the formula for velocity?

<p>Velocity (v) = Displacement(d) / Time interval (tint)</p>
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What is the SI unit of velocity?

<p>m/s</p>
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Which of the following are velocities? (Select all that apply).

<p>30 km/h northwest (B), 350 m/sec north (D)</p>
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A very slow man walks 0.2 meters in 0.5 seconds east. What is his velocity?

<p>0.4 m/s, east</p>
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A car travels to the east at a displacement of 100 meters in 4 seconds. What is the car's velocity?

<p>25 m/s, east</p>
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A girl travels 20 miles on her bicycle. The trip takes 2 hours. What is her speed?

<p>10 miles per hour.</p>
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What is the velocity of a rocket that goes 700 km north in 25 seconds?

<p>28 kilometers per second, north</p>
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Bob rides his bicycle on a bike path that is 75 km long to get to his house that is due east of the bike path. If it takes Bob 15 hours, what is his velocity?

<p>5 km/h, east</p>
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What is the speed of a rocket that travels 9000 meters in 12.12 seconds?

<p>742.57 meters per second</p>
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Flashcards

Flashcard

A card used for testing memory, typically showing a question on one side and the answer on the other.

Testing Effect

The improved memory retention that occurs when information is actively retrieved during a test.

Definition

A statement that explains the meaning of a term or concept.

Hint

A clue or partial information designed to aid memory recall.

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Memory Tip

A strategy or technique to help you remember information more effectively.

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Active Retrieval

The process of recalling information from memory rather than passively reviewing it.

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Chunking

A method of breaking down information into smaller, manageable parts to improve memory.

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Mnemonic

A memory aid that helps in remembering information through patterns or phrases.

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Conceptual Understanding

A deep comprehension of a concept, not just memorization of facts.

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Progressive Learning

A learning approach where knowledge builds on previously learned concepts.

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Study Notes

Speed

  • Speed is the distance an object travels in a specific time.
  • The formula for speed is: Speed = Distance / Time
  • SI unit for speed is m/s, others include km/h, kph, m/min and mi/h.
  • Examples of speed calculations are provided.

Velocity

  • Velocity is the speed of an object, including its direction.
  • The formula for velocity is: Velocity = Displacement / Time Interval
  • SI unit for velocity is m/s. Velocity includes a direction (e.g., 10 m/s north).
  • Examples of velocity calculations and determining which values are velocities are shown.

Examples

  • Various examples of calculating speed and velocity are given, encompassing different scenarios like a person running, a car traveling, and a rocket moving.
  • These examples include detailed steps to solve problems involving speed and velocity calculation. Corresponding solutions and answers are also presented.

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