Motion Flashcards
What quantity is distance
Scalar
What is speed
Rate of change of distance or distance travelled per unit time
What quantity is speed?
Scalar
What does. Scalar quantity include
Only a magnitude
What do vector quantities include
Magnitude and direction
What quantity is displacement
Vector
What does displacement include
Direction and distance
How do you measure displacement
Start to finish point in a straight line
Equation for speed
Distance over time
What is velocity
Speed of an object in a given direction
What quantity is velocity
Vector
equation for velocity
Displacement over time
What factors does speed depend on
Age terrain fitness and distance travelled
Define acceleration
The change in velocity of an object within a specific time
What quantity is acceleration?
Vector
How can you calculate acceleration?
Change in velocity over time
What is another name for negative acceleration
Deceleration
What is uniform acceleration
When a moving object speed changes at the same amount per second
How can you calculate uniform acceleration?
(Final velocity) squared-(initial velocity) squared = 2X acceleration X distance
What is the unit for acceleration?
M/s squared
In a distance time graph, what does the gradient represent?
The speed
In a velocity time graph, what does the gradient represent?
The acceleration
In a velocity time graph, what does the area under the graph represent?
The displacement
Examples of scalar quantities
Temperature, mass, energy, distance, speed and density
Examples of vector quantities
Force, displacement, velocity, acceleration, and momentum
