3.1 Motion Flashcards
3.1.1 Kinematics, 3.1.2 Linear motion, 3.1.3 Projectile motion, (18 cards)
The definition of displacement
Distance travelled in a particular direction
The definition of velocity
The rate of change of displacement
The definition of acceleration
The rate of change of velocity
The definition of instantaneous speed
The rate of change of distance at one particular instant in time
The definition of average speed
The total distance travelled divided by total time taken
What is the gradient of a displacement time graph?
Velocity
What is the gradient of a velocity time graph?
Acceleration
What is the area underneath a velocity time graph?
Displacement
What is the area underneath an acceleration time graph?
Change in velocity
Give two ways of determining g (acceleration of free fall)?
Trapdoors and an electromagnet. Light gates and a timer.
What is thinking distance?
Distance travelled from the moment a diver sees a hazard to applying the brakes.
What is braking distance?
Distance travelled once the brakes have been applied.
What is stopping distance?
Thinking + braking
True or false: Horizontal and vertical motion are independent of each other.
True
When can you use the suvat equations?
when acceleration is constant in a straight line.
In projectile motion what is a in the vertical direction.
9.81 ms^-2
In projectile motion what is a in the horizontal direction?
0 ms^-2
True or false: In projectile motion, the horizontal velocity is a constant.
True
