Motion Flashcards
What’s distance
The distance between 2 points is how far apart they are
Whats displacement
Distance between 2 points in a specified direction
What’s speed
The rate at which distance changes with time
What’s velocity
Rate of change of displacement with time
What’s the equation for average speed
Total distance travelled ÷ total time taken
What’s the equation for average velocity
Total displacement ÷ total time taken
What’s the equation for the rate of change of speed
Final speed-inital speed/time taken
What’s the rate of change of speed measured in
m/s²
If the rate of change of speed is constant, what’s the equation
Intial speed+final speed/2
What’s acceleration
The rate of change of velocity with time
What’s acceleration equation
Change in velocity/time taken
If acceleration is constant, what’s the equation
Intial velocity + final velocity/2
What’s it mean if its positive acceleration
The velocity is increasing
What’s it mean if acceleration is negative
The velocity is Decreasing
What’s a scalar quantity
A physical quantity that has magnitude but not direction
What’s some examples of a scalar quantity
Distance
Speed
Rate of change of speed
What’s a vector quantity
A physical quantity that has both magnitude and direction
What’s some examples of a vector quantity
Displacement
Velocity
Acceleration
The Gradient of a distances time graph represents…
An objects speed
The Gradient of a speed time graph represents..
An objects rats of change of speed
The area between a speed time graph and the time axis represents..
The distance moved
The Gradient of a velocity time graph represents..
An objects velocity
The Gradient of a velocity time graph represents..
An objects acceleration
The area between a velocity time graph and the time axis represents..
The displacement
