From Here to There
The distance an object travels plus the direction from the starting point
What is Displacement?
A point against which motion is measured.
What is a Reference Point?
What measurement requires a direction: speed or velocity?
Velocity
The Henday is 78KMs long circle. If driving around the entire ring road stopping where you started, what is your total displacement?
0 km
METERS PER SECOND PER SECOND
The measure between two points.
What is Distance?
True or false. All motion is relative.
True.
Two cars are about to pass each other on the highway. One car is going 100kmh and other is going 80kmh. What is their relative velocity?
180kmh towards each other.
100 Miles is the same as how many meters?
160,900 m
When two objects travel in the same direction you ______ their individual speeds to find their relative speed.
SUBTRACT
A physical measurement that contains both magnitude and direction.
What is a Vector?
In science, motion is defined as a change in position.
What is motion?
Which is not a type of ACCELERATION?
A: objects speeding up
B: an object at a constant speed changing direction
C: an object at a constant speed with a constant direction.
C.
On an Acceleration graph, a positive slope means?
Speed is increasing.
What is the mathematical equation for acceleration?
A physical measurement that contains only magnitude.
What is a Scalar Quantity?
Explain how you add vectors like displacement
We add vectors by combining the vector MAGNITUDES and the DIRECTION.
What does the slope of a line on a speed time graph represent?
The objects magnitude of Acceleration.
If an object is _____ ______, then its acceleration is in the _____ ______, as its velocity.
SPEEDING UP
SAME DIRECTION
When two objects travel in the opposite direction you ______ their individual speeds to find their relative speed.
ADD
What is Acceleration?
What is the equation for speed in words?
Speed is equal to the distance divided by the time it takes to travel that distance.
What are 3 ways velocity can change and cause acceleration?
Velocity can change if the object speeds up.
Velocity can change if the object slows down.
Velocity can change if the object changes direction.
Acceleration can either ______ ______ or ______ ______ an object depending on its ________.
SPEED UP
SLOW DOWN
DIRECTION
Why is the term -DECELERATE not acceptable in physics?
B/C we must always give a direction of acceleration so we can tell if whether the object is speeding up or slowing down.