Speed, Velocity, Terminal Velocity and Acceleration Flashcards
What is velocity?
The speed of an object in a given direction.
Is speed scalar or vector?
Scalar
Is velocity scalar or vector?
Vector
What is average speed?
Average speed is what we usually use as speed because the speed of an object is rarely constant. The average speed is the total distance divided by the total time.
What is the average speed of walking?
1.5m/s
What is the average speed of running?
3.0m/s
What is the average speed of cycling?
6.0m/s
What is the equation for velocity?
Change in displacement divided by time
What is the equation for speed?
Change in distance divided by time
What is acceleration?
How do you find out the acceleration in a velocity-time graph?
What does a straight line mean in a velocity-time graph?
What does a straight line mean in a distance-time graph?
How do you work out speed in a distance-time graph?
What does a straight line along the x-axis mean on a velocity-time graph?
What does a positive gradient mean on a velocity-time graph?
What does a negative gradient mean on a velocity-time graph?
How do you find the displacement on a velocity-time graph?
practice questions
What is the equation using velocity, time and acceleration?
practice questions
What is the equation using displacement, velocity and acceleration?
practice questions
What is terminal velocity?
[check] Terminal velocity is the point at which a moving object reaches a constant speed
What forces does terminal velocity involve?
practice question
What are resultant force diagrams?
How do you draw a resultant force diagram?
