Speed and acceleration Speed-time graphs. ... If the line slopes downward from left to right on the graph, this means that the object is slowing down. Its acceleration will be negative.

Days of Endless Time Smithsonian’s Hirshhorn Museum, Washington, until 6 April 2015. Free entry. Come to Washington DC, and the first work you’ll see at the Hirshhorn Museum’s Days of ...

Is time slowing down? By Zeeya Merali. 18 December 2007 ... But so far, nobody has been able to explain where the “dark energy” causing this acceleration comes from.

Maybe it's the passage of time itself that's slowing down, they say. The distant galaxies only look like they're accelerating because our deep-space telescopes are essentially looking back in time ...

We are going to measure distance and time for an accelerating object and use that to find the acceleration. In the past, I would do this lab using a specialized drop timer. It was a stop watch ...

The velocity time graphs give all three variables for motion–velocity which can be read off at any time. Area is displacement and gradient is acceleration. Next page ...