Embedded Files
Lesson overview
Lesson overview
In this lesson you will:
explore the scale of different distances and periods of time
practice calculating speed
conduct an investigation into speed.
Intentions and criteria
Intentions and criteria
Learning intentions
To be able to record distance in a variety of units.
To be able to calculate average time.
To be able to calculate speed.
Success criteria
I have accurately recorded the time and distance objects have travelled.
I can use the formula for speed to calculate how fast an object is going.
Challenge
Challenge
Challenges
Challenges
Some of the activities in this lesson are must do activities. These are also called a mini challenge. Please have a go at the should do activities and reach out to your teacher if you need assistance. You could also spend some extra time problem solving a solution to these challenges. Finally, there are super challenge activities, the could do activities. We strongly encourage you to try these.
Activity 1 - Distance scales
Activity 1 - Distance scales
How far do we need to go?
How far do we need to go?
Motion can occur over a wide range of distances. There might be the 100 m sprint at your athletics carnival or the Bathurst 1000 km car race.
Taking accurate distance measurements is important for calculating speed accurately.
How do we take distance measurements?
How do we take distance measurements?
One way we can use is via Google Maps.
Look at the example shown in the embedded Google Slide.
The first slide shows you the direct distance from the Taronga Zoo to the Sydney Harbour Bridge is 2.76 km. We call this displacement.
Now look at the second slide. If you drove by car the distance travelled would be 7.7 km.
Note: When you take this trip by car the distance is 7.7 km but your displacement is 2.76 km.
Task - Measuring distance
Task - Measuring distance
Now it's your turn,
Click on the image to open Google Maps to NSW in a new tab.
Find a landmark you know and right click and then click measure distance.
Move to a nearby landmark, right click, then click, distance to here.
Record your distance.
For the same 2 points, find out the distance a car would need to take.
Complete this task twice for the measurement between two other landmarks of your choosing, anywhere in the world.
Next, measure the distances of a variety of paths or objects in your house. A path might be the distance from your bedroom to the fridge. Try to use, when appropriate, mm, cm and m units. Two examples are given for you. Try to determine 6 more.
Record all your distances using the Distances and scale Google Doc activity.
Click on the button to open a new tab and view the Google Doc.
Click on the Use Template button to create a copy for you to edit.
Activity 2 - Time scales
Activity 2 - Time scales
Motion can occur over a wide range of time scales. Taking accurate time measurements is also important for calculating speed accurately.
Task - Averaging time
Task - Averaging time
Brainstorm some ways that you can record time at your home.
Choose one of these methods to measure the time between the start and finish positions for a variety of objects.
For example, the time it takes for a toy car to stop rolling, the time for a paper aeroplane to land after being thrown, the time for Nerf bullet to hit the ground.
Complete each three times and take an average.
Try to record the time of one long event.
For example, a walk to the end of the street. Record this event in minutes.
Record all your results, for each example, in the table in the Google Doc activity.
Make sure you have at least five measurements including your walk.
Complete the questions in the Google Doc.
Click on the button to open a new tab and view the Google Doc.
Click on the Use Template button to create a copy for you to edit.
Activity 3 - Exploring speed
Activity 3 - Exploring speed
Task 2 - Comparison of motion using average speed
Task 2 - Comparison of motion using average speed
Aim: To see which toy car is faster
Complete this task by using the investigation report template.
Click on the button to open a new tab and view the Google Doc.
Click on the Use Template button to create a copy for you to edit.
Exit slip
Exit slip
Reflect on your learning
Reflect on your learning
Handing in your work
Handing in your work
Don't forget to hand in the work you completed today!
Your teacher will have told you to do one of the following:
Upload any digital documents you created and any photos you took of your written work to your Learning Management system (MS Teams, Google Classroom for example).
Email any digital documents you created and any photos you took of your written work to your teacher.
Make sure you keep any hand written work you did in your exercise book or folder as your teacher may need to see these when you are back in class.
Student reflection
Student reflection
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