- Speed - The speed is the distance covered over a period of time measured by distance over time. (km/s, m/s, km/min)
- Distance - The distance is the measurement of how far the length is through space. (10 meters, 1 kilometer, 12 millimeter)
- Displacement total distance travelled - It is the length of how far something is from the start after it has travelled.
- Time - Time is the measurement of how long/duration the object took to travel over a certain distance measured in seconds, minutes or hours.
- Velocity - It is an object moving with a direction.
- Average speed - It is the total distance over the average of the total speeds consisting of different speed.
- Acceleration - Acceleration is how much the speed increases over time. Whereas the symbol is m/s^2.
- Deceleration - Deceleration is how much the speed decreases over time.
2. Formulae (Relationship):
Distance on the y -axis and time on the x -axis. Distance-time graphs is a way to visually show a collection of data. It allows us to understand the relationships between the data. The y -axis (distance) is the distance in relative to the origin point which is the 0 mark. This distance will change overtime if the object is moving whether the object is moving towards or away from the origin point
Features of the graphs is that when an object is moving with a constant velocity, the line on the graph will be horizontal. If it has a constant accelerating velocity then the line on the graph will be straight as if on the y -axis it shows a straight line where it stays at a certain point on the y-axis and move on the x- axis it will be a constant velocity as it changes in time but not on the speed axis.
- Speed = Distance/time
- Distance - time graph
Distance on the y -axis and time on the x -axis. Distance-time graphs is a way to visually show a collection of data. It allows us to understand the relationships between the data. The y -axis (distance) is the distance in relative to the origin point which is the 0 mark. This distance will change overtime if the object is moving whether the object is moving towards or away from the origin point
- Speed - time Graph
Features of the graphs is that when an object is moving with a constant velocity, the line on the graph will be horizontal. If it has a constant accelerating velocity then the line on the graph will be straight as if on the y -axis it shows a straight line where it stays at a certain point on the y-axis and move on the x- axis it will be a constant velocity as it changes in time but not on the speed axis.
3. Key learning points from the motion detector activity:
Done by: Joel, Abiyyu, Desiree, Claire, Daniel and Irfan. (*^▽^*)
- We learnt that speed, distance and time can be represented onto graphs. Distance-time graphs show the distance travelled according to time while a velocity-time graph shows the speed the person travelling according to time.
- We learnt how to use a motion detector. With the sound measuring the distance. We also learnt tips and tricks to manipulate the motion detector without walking.
- We learnt how to incorporate technology into Math. Using TI-Nspire to do plot and learn graphs was very useful.
Done by: Joel, Abiyyu, Desiree, Claire, Daniel and Irfan. (*^▽^*)
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