Constant Acceleration

Cards (15)

On a displacement-time graph, the gradient represents the velocity
If the displacement-time graph is a straight line (upwards slope) , the velocity is constant.
On a displacement-time graph, a horizontal line indicates that the particle is stationary
Average Velocity : displacement/time taken
On a displacement-time graph, If the particle starts with $x$ km then decreases in displacement (downwards slope), velocity will be negative
Average Speed : total distance travelled/time taken
On a displacement -time graph, if the particle returns to its original position, the displacement for the whole journey is 0 km, and so the average velocity for the whole journey is 0 km/h
The velocity of the ball is positive (upwards) and decreases (the ball is decelerating) until it reaches 0 m/s at the highest point.
The velocity of the ball is negative (downwards), and increases (the ball is accelerating) until it hits the ground at the same speed at which it was launched
On a velocity-time graph, a horizontal line indicates that the particle is moving at constant velocity
If the velocity-time graph is a straight line (upwards slope), the velocity is increasing at a constant rate and the particle is moving with a constant acceleration
Acceleration is the rate of change of velocity
On a velocity-time graph the gradient represents acceleration.
On a velocity-time graph, velocity x time = distance travelled
On a velocity-time graph, the area under the graph represents the displacement at that time