Observe the virtual skateboarder coming down the hill and over the ramp.
describe how each of newton's laws of motion can be observed in this action.
you can choose the dry, wet, or muddy conditions, or some combination of these.
newton's first law of motion:
newton's second law of motion:
newton's third law of motion:

Which best describes the present-day universe? opaque, expanding very slowly, stars produce heavy elements transparent, expanding at an accelerated rate, stars produce heavy elements opaque, expanding at an accelerated rate, stars produce only hydrogen and helium transparent, expanding very slowly, stars produce only hydrogen and helium