## Take a moment to answer these questions.

For an object that’s slowing down, like a skateboard or a curling rock:

• What does the graph showing the distance that was travelled over time look like?
• What does the graph showing the speed over time look like?
• What does the graph showing kinetic energy over time look like?

## Build a street curling rock!

• Done! I've built my model.

• I have a start line and a target.
• I can push my curling rock towards the target and trace a graph.

• I've changed my program to get my initial graph speed.
• I've tried a new push of my curling rock, and I can log an approximate initial speed.

## Find the initial kinetic energy.

• My program is calculating and showing the kinetic energy at the beginning of my push.

m = 305 g

## Let's play a game!

• I've prepared the playing field.
• I've tried to hit the centre of the target 3 times.
• I've measured the distance between the target and where the rock stopped.

## How well did you do?

• I can answer these questions:
• How would you summarise your experiment?
• What have you learned?

Brilliant!