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Success Criteria:
I am able to define and provide examples to distinguish between distance and displacement in various contexts, such as a round trip versus a one-way journey.
I am able to calculate speed and velocity using appropriate formulas (speed = distance / time, velocity = displacement / time) and understand when each measurement is appropriate.
I am able to convert between km/h and m/s accurately, demonstrating understanding of the conversion factor (1 m/s = 3.6 km/h) and applying it to solve problems involving speed and velocity.
Fun Fact
The fastest manned vehicle ever built is the Apollo 10 spacecraft, which reached a maximum velocity of approximately 39,897 km/h (about 11.08 km/s) during its return to Earth from the Moon in 1969. This velocity is roughly equivalent to 11 kilometers per second.
Key terms
Distance is the measure of how far an object has traveled along its path, regardless of its direction. It is a scalar quantity that can be quantified in units like meters or kilometers.
Displacement is the straight-line distance and direction from the starting point to the ending point of an object's motion. It is a vector quantity that represents the shortest path between two points in a specific direction.
Speed is a scalar quantity that measures how fast an object moves relative to a reference point, calculated as the distance traveled divided by the time taken, and expressed in units like meters per second (m/s) or kilometers per hour (km/h).
Velocity is a vector quantity that specifies both the speed and direction of an object's motion. It is calculated as the displacement divided by the time taken, and it is expressed in units like meters per second (m/s) or kilometers per hour (km/h).
Learning Tasks
Chapter 11.1 Knowledge and Understanding questions p.318
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