Movement and position Flashcards
What does it mean if a distance/time graph is in a straight horizontal line?
The distance is not changing and the speed is 0
What does it mean if the distance time graph is a straight sloping line
The distance from the start point is changing uniformly and the speed is constant.
How do you calculate the average speed on an object?
Average speed = distance moved/time taken
How do you calculate speed?
Speed = distance/time
How can you convert km/h into m/s?
Divide it by 3.6
How do you work out the speed of an object using a distance time graph?
Change in y coordinate/ Change in x coordinate
How can you calculate acceleration?
Acceleration = change in velocity/time
What is the symbol equation for acceleration?
a = deltaV / t
What is a vector quantity?
A quantity in which direction is important too.
What does it mean if a velocity time graph is a straight horizontal line
The speed is constant and the acceleration is zero.
What does it mean if a velocity time graph is a straight sloping line?
The speed is changing uniformly and the acceleration is constant.
How can you determine acceleration from a velocity time graph?
Change in y coordinate / Change in x coordinate
What does it mean if a velocity time graph is curved?
The gradient is increasing then decreasing so the acceleration is increasing then decreasing.
How do you determine the distance travelled from a velocity-time graph?
The area underneath the graph line.
What are the vector quantities? (ones that aren’t here are scalar)
displacement (distance), velocity, momentum, acceleration, force, weight
