Add a slider to the webpage that lets the user change gravity from 0 to 25 m/s². The scale reading must update live as the slider moves. When gravity reaches 0, change the background to black space with stars and label the location as 'Space'. Also display the formula Weight = Mass × Gravity.
🧑🏫 Teaching Note:
The final tool. Students drag gravity to any value. At g=0 the background goes black — you are in Space! Weight = 0 N but mass is still 20 kg — your dog is weightless but not massless! The formula W = m × g updates live.