A quantity that is defined by magnitude only
What is a scalar?
Distance.
This is the displacement of a man who walks 50m north, and then turns around and walks 30m south
What is 20m north?
The symbol we use to represent change
What is delta or
\Delta
Motion/movement.
A quantity that is defined by Magnitude and Direction
What is a vector?
Speed is the size of the ___ travelled.
Path.
This is the average speed of a man who walks 50m in 10s
What is 5m/s?
We accelerate when we change our velocity. So we can accelerate by speeding up, slowing down, or doing this.
Changing direction.
When a person touches everyday objects, this fundamental force is in action.
Electromagnetism.
Vector quantity that refers to the straight line distance of an object's path from start to finish
What is displacement?
If your distance and displacement are equal, your speed and velocity are this
Equal
This is the acceleration of a car that accelerates from 40m/s to 50m/s in 5 seconds
What is 2 m/s^2?
We have negative acceleration when doing this.
Slowing down.
Erwin Schrodinger proposed a famous thought expirment called this
Schrodinger's Cat
An object that is being accelerated only by gravity is in this state of motion
What is free fall?
These are the two different types of speed that we have mentioned.
Instantaneous and average speed.
The displacement of a person who walks 30m North, and then 40m West.
50m Northwest.
When your velocity is constant, your acceleration is this.
Zero.
Physics covers the biggest to the smallest of interactions. This fundamental force deals with the biggest (i.e., planets, stars, black holes...).
Gravity
Designated by a positive or negative sign on a vector quantity
What is direction?
When solving for speed, s = d/t. When finding distance, d = this
d = s * t
The displacement of a racer between the start and the end of a race.
Zero.
This is the acceleration of an object that reaches 98m/s after falling for 10 seconds.
9.8m/s2
These are the 4 fundamental forces in physics
Gravitation
Electromagnetic
Strong Nuclear Force
Weak Nuclear Force