1. Movement And Force Flashcards
What are the 4 ways position can change?
- Rotary.
- Reciprocating.
- Oscillation.
- Linear.
What is the equation for displacement?
Δx = xf - xi
What is the equation for velocity?
v = Δx/Δt
What is the equation for speed?
Speed = distance traveled in a given time interval/time interval
What is rotary movement?
Round and round.
What is reciprocating movement?
Back and forth in a straight line.
What is oscillation?
Swinging along an arc.
What is linear movement?
Movement in a straight line.
What is displacement?
The change in position of an object from its initial position to its final position.
What direction are positive vectors?
Upwards and to the right.
What direction are negative vectors?
Downwards and to the left.
What type of quantity is displacement?
A vector quantity.
It has both magnitude and direction.
What type of quantity is direction?
A scalar quantity.
It only has magnitude.
What is the equation for a triangle’s hypotenuse?
a2 + b2 = c2
What model is used to represent objects in motion?
A particle model of motion.
It uses a single dot to represent the object observed.
What is the origin of time?
When t = 0.
It can be picked to be any point based on what data is needed.
What is the SI Unit for distance?
Metres
What is the SI Unit for time?
Seconds
What type of quantity is speed?
A scalar.
It only has magnitude.
What is used graphically to represent a vector?
An arrow
What is the gradient equation?
Slope = rise/run
What are the usual units for speed?
Metres per second
