Podcast
Questions and Answers
What is the formula to calculate speed?
What is the formula to calculate speed?
- Speed = distance + time
- Speed = time + distance
- Speed = time / distance
- Speed = distance / time (correct)
How is velocity different from speed?
How is velocity different from speed?
- Velocity is the speed in a particular direction. (correct)
- Velocity includes the distance covered.
- Velocity does not depend on time.
- Velocity is always smaller than speed.
What is the average speed of a car that travels 300 km in 6 hours?
What is the average speed of a car that travels 300 km in 6 hours?
- 55 km/hr
- 60 km/hr
- 50 km/hr (correct)
- 45 km/hr
Which scenario describes an instance of acceleration?
Which scenario describes an instance of acceleration?
When does an object have zero acceleration?
When does an object have zero acceleration?
Which statement accurately describes the relationship between speed and velocity?
Which statement accurately describes the relationship between speed and velocity?
If a bird flies at 15 km/h for 5 minutes and another bird flies at the same speed but in a different direction, what can be concluded?
If a bird flies at 15 km/h for 5 minutes and another bird flies at the same speed but in a different direction, what can be concluded?
What happens to the acceleration of an object when it maintains a constant speed and direction?
What happens to the acceleration of an object when it maintains a constant speed and direction?
Which scenario best illustrates acceleration?
Which scenario best illustrates acceleration?
Which of the following measurements is a common unit for speed?
Which of the following measurements is a common unit for speed?
Flashcards
Speed
Speed
Distance traveled divided by the time taken.
Velocity
Velocity
Speed in a particular direction.
Calculating Speed
Calculating Speed
Speed = Distance / Time
Acceleration
Acceleration
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Zero Acceleration
Zero Acceleration
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What is speed?
What is speed?
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What's the difference between speed and velocity?
What's the difference between speed and velocity?
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How do you calculate speed?
How do you calculate speed?
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What is acceleration?
What is acceleration?
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When does an object have zero acceleration?
When does an object have zero acceleration?
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Study Notes
Speed
- Speed is the distance traveled by an object divided by the time taken to travel that distance.
- Speed is measured in meters per second (m/s).
- Speed = distance / time
Velocity
- Velocity is the speed of an object in a particular direction.
- Velocity is different from speed because velocity takes direction into account.
- If two birds leave the same tree at the same time and fly at the same speed for the same amount of time, they won't end up in the same place because they might fly in different directions.
Acceleration
- Acceleration is the rate at which velocity changes.
- Acceleration occurs when speed increases, decreases, or when direction changes.
- An object with constant velocity has zero acceleration.
- Acceleration = rate of change of velocity
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