GEOLOGY

Detailed explanation-1: -On a distance-time graph, a sloping line indicates that the object is moving. The slope or gradient of the line in a distance-time graph equals the speed of the object. The faster the object moves, the steeper the line (and the greater the gradient).

Detailed explanation-2: -In a distance-time graph, the slope or gradient of the line is equal to the speed of the object. The steeper the line (and the greater the gradient) the faster the object is moving.

Detailed explanation-3: -Detailed Solution. The correct answer is speed.

Detailed explanation-4: -The speed represented by a straight line on a distance–time graph equals the gradient of the graph. The gradient of a distance–time graph is the change in distance divided by the change in time. This can be written as = , where is the speed, is the change in distance, and is the change in time.

Detailed explanation-5: -Solution : (i) The slope of distance-time graph represents speed of the body.